Bulletin No. MIE-B3001P

INSTRUCTION MANUALUSER S MANUAL
Model 01, 05, 83A, 83, 89
Globe Type Control Valves

USER S MANUAL

Model 01, 05, 83A, 83, 89

Introduction
Thank your very much for choosing MOTOYAMA Control Valves.
To use this product safely and to optimize its performance, it is recommended that following instruction should be read
carefully and followed.

1 General① Keep this instruction manual in operator’s hand.
② Before using Control Valves, read this instruction manual carefully and fully understand it for operation.
③ This instruction manual does not cover Accessories installed to Control Valves.
Kindly refer appropriate Accessories’ Instruction Manual along with this manual.

2 For Safety Use
To use this Control Valves safely, this instruction manual describes symbols and signal terms in accordance with JIS
Z2901 and ANSI Z5351 which shall call your attention to keep safety manner or to give caution of handling, together
with notes. Important information has been marked and emphasized with following symbols in this Instruction Manual.

Symbols andSignal Terms

Explanation

WARNINGA direct endangerment of a person’s health or life may occur if the Warning
was not observed.

CAUTION

If the Caution was not observed, minor personal injuries and/or property
damages may result.

3 NoteMOTOYAMA is continuously improving and upgrading its products design, specifications and/or dimensions. Information
included herein is subject to change without notice.

MOTOYAMA ENG. WORKS, LTD. SHALL NOT BE LIABLE FOR TECHNICAL OR EDITORIAL ERRORS OROMISSIONS CONTAINED HEREIN; NOR FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES RESULTINGFROM THE FURNISHING, PERFORMANCE, OR USE OF THIS MATERIAL.

iModel 01, 05, 83A, 83, 89

Transportation, Unpacking, Check and Storage
1 Transportation

CAUTION

When loading or unloading and transportation of Control valves, pay full
attention not to drop or not to give shock with hitting or bumping etc. It
would make Valves and its accessories mechanical troubles or damages asof precision instrument.

◆ If any cautions/instructions or care marks are indicated on package, follow them as it is.

2 Unpacking(1) There are two types of packages used for Control Valves, wooden crate/box and carton.
In either case, unpack crate/box or carton indoor or in warehouse.

CAUTION

Never unpack package of Control Valves outdoor place where rain falls, on
damp and wet ground and/or dust is in the air.
It would make the Valves and its accessories mechanical troubles ordamage because of precision.

(2) When unpacking the wooden box, follow the procedure described below unless otherwise specified.
① Pull off round pegs around edge protectors at each corner and remove them.
② Pull off round pegs stuck on roof (top) and remove the roof (top).
③ Remove waterproofing materials, if applied, inside of the box.
④ Pull off round pegs stuck on frame at side and remove side plates.
⑤ Pull off round pegs stuck on frame at end and remove end plates.
⑥ If the goods are fixed with square-lumbers or bolts and nuts, remove them.
⑦ Remove waterproofing materials such as polyvinyl packing covering the goods.

Edge protector

Roof (Top) plate

T-form peg

Side plate

End plate【Note】T-form pegs are not required to be pull off when unpacking.

ii

Round peg

Model 01, 05, 83A, 83, 89
3 Check of Products【Caution】After receiving goods, unpack package promptly and check if goods delivered are complying with your orderspecification.
① When taking out goods from box, pay attention not to give any physical shock to Accessories attached to Valves.
Take out spare parts if they are enclosed.
② Check Name Plate attached to Yoke of Actuator whether Valve specification complying with your request.
③ If any clarification required on received goods, please contact MOTOYAMA sales office specifying Serial Numbers
and Model Number indicating on Name Plate attached to the Valves.

4 Storage① If goods need to be stored before installation, store goods in warehouse or equivalent indoor storage facility, coveringwhole goods with cover like polyethylene sheet and protect goods from high temperature, moisture, Dust andvibration etc.

CAUTION

During storage of goods, protect Conduit connection of electrical instrumentfrom moisture or water which would give breakdown of electricity and cause
trouble on products.

② If a period of storage is exceeding one (1) year after delivery, re-calibration of Valve action and check of gland andgasket leakage before installation shall be required. Please contact MOTOYAMA sales office when re-calibration isrequested.

iii

Model 01, 05, 83A, 83, 89

CONTENTSPage
1. Purpose of this Instruction Manual ………………………………………………………01
2. Application and Construction
2.1 Purpose of Use …………………………………………………………………………… 02
2.2 Construction ………………………………………………………………………………… 02
2.3 Specification………………………………………………………………………………… 02
3. Installation
3.1 General ……………………………………………………………………………………… 04
3.2 Installation on System Piping …………………………………………………………… 05
3.3 Inspection after Installation ……………………………………………………………… 05
4. Operation, Maintenance and Check
4.1 Precautions and Check before Operation ……………………………………………… 06
4.2 Greasing to the Gland Packing …………………………………………………………… 07
4.3 Maintenance and Check ………………………………………………………………… 08
5. Disassembly & Assembly
5.1 Split of Actuator from Valve Body………………………………………………………… 09
5.2 Disassembling and Re-assembling of Valve Body …………………………………… 10
5.3 Disassembling and Re-assembling Model 3800 Actuator …………………………… 14
5.4 Disassembling and Re-assembling Model 2800 Actuator …………………………… 18
6. Adjustment and Test
6.1 Adjustment ………………………………………………………………………………… 21
6.2 Test ………………………………………………………………………………………… 23
7. Change of Valve Action and Actuator
7.1 Purpose……………………………………………………………………………………… 23
7.2 Change of Valve Action …………………………………………………………………… 23
7.3 Change of Stroke and Spring Range …………………………………………………… 24
8. Hand Wheel Mounted on Actuator
8.1 Operating, Disassembling and Re-assembling of Side-Mounted Handwheel ……… 26
8.2 Operating, Disassembling and Re-assembling of Top-Mounted Handwheel ……… 29
9. Travel Stopper On Actuator
9.1 Classification ……………………………………………………………………………… 31
9.2 Adjustment of Travel Stopper …………………………………………………………… 31
10. Bellows Seal Type Valve10.1 Split of Actuator from Valve Body ……………………………………………………… 34
10.2 Disassembling and Re-assembling of Formed Bellows Assembly ………………… 35
10.3 Disassembling and Re-assembling of Welded Bellows Assembly ………………… 36
10.4 Connection and Adjustment of Valve Stem …………………………………………… 36
11. Trouble Shooting …………………………………………………………………………… 38
12. Recommended Spare Parts ……………………………………………………………… 40
13. Disposal of Control Valves and Parts …………………………………………………… 40
Reference Data (Estimated Life Cycle of Control Valve Parts) ………………………… 41iv

Model 01, 05, 83A, 83, 89

1

Purpose of this Instruction Manual(1) This Instruction Manual provides essential information for optimizing MOTOYAMA Control Valves, Model #01/#05
Bottom Guided and Single-seated/ Double-seated Globe Valves, #83A, #83 Cage Guided Globe Valves and #89
Top Guided and Single Seated Globe Valves.
(2) Read this manual carefully before installing, operating or overhauling MOTOYAMA Diaphragm Globe Type Control
Valves (Model #01, #05, #83A, #83 and #89), read this manual carefully.
(3) Together with this manual, read following Accessories’ manuals before using, when applicable.

Valves and Accessories

Bulletin No.

Model EA10SIntelligent Valve Positioner

MIE-B6111

Model EA91A and EA90A
Electro-Pneumatic Valve Positioner

MIE-B6104

Model PA92A
Pneumatic Valve Positioner

MIE-B2008

Model MR2000
Air Filter Regulator

MIE-B6903

Model 83A-BS and 83A-BSH
Seal-Ring Balance Type Cage Guided Control Valves

MIE-B4301(4) If any other Accessories are installed on Valves delivered, kindly request our sales office appropriate Instruction
Manual, if necessary.

1Model 01, 05, 83A, 83, 89

2Application and Construction
2.1 Purpose of Use
Model 01, 05, 83A, 83 and 89 Control Valves are installed in process piping and used to control process flow,
activating Valve Plug open and close or throttling replying control signal such as 4 〜 20mA DC or 20 〜 100kPa
from controller of instrumentation system, to keep the flow specific and/or constant process conditions.

2.2 Construction
Model 01, 05, 83A, 83 and 89 consist of Body Assembly and Actuator Assembly.
Body has controlling mechanism actually control the process flow and Actuator has driving mechanism toactivate Valve Plug receiving air power source.
Fig. 2-1 show typical constructions of Globe Type Control Valves.
Body Assembly including valve Body, Bonnet, Bottom Cover are jointed together with Studs, Nuts andGaskets, provides pressure container parts where process flow runs though or stays. Valve Plug is hold by
Guide Bush or Cage and is kept at proper control position flowing to the control signal to Actuator.
Spring Loaded Diaphragm Actuator converts variation of air pressure into thrust power for axial motion by thebalance of Diaphragm and Spring and keeps or controls the Plug opening at proper position.

2.3 Specification
See individual catalogue for following Models.
Valve Model
01

MCE-B1101

05

MCE-B1501

83A (150, 300, 600LB)

MCE-B4306

83A-BS, 83A-BSH

MCE-B4307

83 (900, 1500LB)

MCE-B4302

89

MCE-B4102

CAUTION

2

Bulletin No.

Do not use the products beyond the selected specification, code, standard
and/or regulations to secure the safety of the delivered products.

Model 01, 05, 83A, 83, 89
Fig. 2-1 Globe Type Control Valves(a) Globe Type Single SeatedControl ValveTop and Bottom Guide Type(b) Globe Type Double SeatedControl ValveTop and Bottom Guide Type

Model 3801 (Direct Action)

Model 3805 (Direct Action)(c) Cage Guide Type Control Valve

Model 3883A, 3883 (Direct Action)(d) Globe Type Single SeatedControl ValveTop Guide Type
Model 3889 (Direct Action)3

Model 01, 05, 83A, 83, 89

3Installation
3.1 GeneralIn general, Control Valves shall be installed in vertical to piping line or Valve Stem to be vertical to the ground.

① Keep sufficient space to the Valves to be accessible to operate safely and to makemaintenance work, inspection and testing easily.
② Eye-Bolts (Nuts) on Diaphragm case assembly must be used only for hanging Actuator
assembly. Do not hang up complete Valves using Eye-Bolts after assembling Body andActuator. In any case, following mass shall not be exceeded to hang up.
［Unit : kg］
ActuatorModel No.

3800

CAUTION

2800

Actuator Size

Allowable
Hung Up Mass

Actuator Masses

N24

80

12

N28

150

15

N33S

150

24

N40

220

51

500 S/L220

85 / 102 (Note 2)

650 S/L

900 (Note 3)

270 / 275 (Note 2)

650X S/L

900 (Note 3)

365 / 395 (Note 2)【Notes】(1) See catalogues for each Valves masses.
(2) Actuator mass is for direct action.
(3) Only when using four (4) Eye-Bolts for 650S/L and 650XS/L Actuator.
Other size of Actuator, allowable lifting load is permissible using two (2) Eye-Bolts.

③ Ambient temperature and humidity for Valves should be − 20˚C 〜＋ 70˚C, and be less than
90% RH.

WARNING

4

Never use Valves on service condition exceeding rating and standard ofconnection to prevent Valves from damage, breakage and/or leakage.

Model 01, 05, 83A, 83, 89
3.2 Installation on System Piping(1) Remove all welding chips, scales and other foreign matters from internal of the piping line before installing
Valves in between.
(2) Be sure to match arrow mark on Valve Body to the flow direction when installing.
(3) Piping Gasket shall be installed properly not to be stuck out into Body bore diameter.
(4) Be sure the concentricity and parallelism of Valve inlet and outlet piping are correct. Tighten Bolts and Nuts
equally. Be sure not to give the excessive stress to Valves.

CAUTION① When tightening, be sure not to give excessive load (piping stress) to
Valves which would cause damage, deformation and leakage.
② Either Body or Actuator, or both, should be supported by proper way.

(5) Blow off scales, rust and foreign matters in pneumatic piping by compressed Air before connecting
pneumatic piping to Actuator and accessories.
(6) Refer to each instruction manuals for wiring conduits of electric equipments.
(7) For Finned or Extension Bonnet Valves, do not cover Bonnet with heating or cooling insulation.

3.3 Inspection after Installation(1) Carry out leakage test to check leakage from connection piping.
(2) Check leakage from Gland or Gasket after test pressure is applied to the piping.
If any leakage is found, reduce pressure and retighten Gland Nuts or Stud Nuts with equally.

CAUTION① If more than 6 months past before starting operation of system, retighten
Gland Nuts before starting pressure tightness test.
② After re-tighten Gland Nuts, reciprocate the Valves at least 10 times fromfully open to fully close to fit Gland Packing for operation.

5Model 01, 05, 83A, 83, 89

4Operation, Maintenance and Check
4.1 Precautions and Check before Operation(1) Spring range and Off-balance for Model 2800 series Actuator is adjusted properly to the required specification
when shipped. Do not turn Adjusting Screw unless otherwise it should be.
(2) Before start operation, check Stem Nuts, Actuator Bolts and Nuts and other screws to be tightened. Re-tighten
if necessary.
(3) Some Gland Packing might have leakage because of stress relaxation. Check tightness of Gland Nuts andre-tighten if necessary.
(4) When Lubricator is equipped on Bonnet (page 7 and 8), check if Grease filled enough. Be sure to close Stop
Valve after filling Grease. See Table 4-1 to select appropriate Grease for each service. Please contact
MOTOYAMA sales office when replacement Grease is required.

CAUTION① If more than 6 months past before starting operation of system, re-tighten
Gland Nuts before starting pressure tightness test.
② After re-tighten Gland Nuts, reciprocate the Valves at least 10 times fromfully open to fully close to fit Gland Packing for operation.

Table 4-1 Grease
Climax Lubricants & Equipment Co.®

Maker

Three Bond Co., LTD

Grease No.

#400

#650

#750

#1901

Operating Temp. (˚C)

− 29 〜＋ 230− 40 〜＋ 260

0 〜＋ 300＋ 300 〜

Color

Red

Blue

Black

Black

Services

Amine

Chloride

Acetylene

Asphalt

Steam

Acid

Chlorine

Vinyl

Coke oven gas

General highAlkali

Food

Chloride

Coal tartemperature fluid

Alcohol

BleachGeneral Gas

Steam

Ammonia

CyanideHydrocarbon

Phosphorus

Brine

Milk

Mineral Oil

Water

Sulfur

Paints

Freon

Shape

Stick

Stick

Stick

Bulk(Can)【Note】No Lubricator is installed for services fluid temperature is lower than −40˚C or higher than ＋450˚C or thepressure rating is Class 2500LB or greater.

(5) When Handwheel is mounted, be sure Handle is set to “Neutral” or auto operation position which does not
restrain Valve opening.
(6) Carry out loop test with Controller to check that Valves open or close smoothly.

6Model 01, 05, 83A, 83, 89

CAUTION① If Valves must be heated up, increase temperature and pressure
gradually without changing them rapidly.
② Heating up speed shall be less than 150˚C/Hr for Model 01, Model 05,
Model 89 and shall be less than 100˚C/Hr for Model 83A, Model 83.
③ During heating up, be sure to avoid sudden operation.

4.2 Greasing to the Gland Packing(1) To use Braided Packing, it is required to use Greases to elevate the sealing and lubricating property on
Valve Stem.
(2) Greasing device to inject the Grease is called Lubricator.
See Fig. 4-1 for details of Lubricator.
(3) To supply Grease in routine work, follow the procedure below.
① Turn Handle clockwise to make Spindle closed.
(If Pressure Screw is removed holding Spindle open, Grease may flow out reversely by internal pressure
from Valve Body.)② Take out Pressure Screw from Cylinder.
③ Insert designated Grease from this open port.
Use designated Grease specified on Name Plate attached on Actuator④ Compress Grease into Lubricator by Pressure Screw.
⑤ Under compressing Grease by Pressure Screw, turn Handle counter-clockwise to make Spindle open.
Then compress Grease further by Pressure Screw. After compressing, turn Handle clockwise and close
Spindle.
• Repeat above operation ③, ④, ⑤ several times and fill Grease into Connection Pipe and Cylinder.

CAUTION

Do not fill Grease to strong or too much to prevent over flow from Bonnet
Staffing Box or to prevent the damage of Gland Packing itself.
Pay attention over flow from Staffing Box, Guide Bush and/or Valve Stemwhen greasing.

⑥ Turn Handle clockwise to make Spindle closed and Greasing is completed.
⑦ After greasing, open and close the Valves several times (around 10 times) to create uniformed grease film
Abetween Gland Packing and Valve Stem.

7

Model 01, 05, 83A, 83, 89
Fig. 4-1 Lubricator

No.

Part Name

①

Body

②

Bonnet③

Spindle④

Gland nut⑤

Handle wheel

⑥
⑦

No.

Part Name

①

Body

②

Bonnet③

Spindle④

Gland nut⑤

Handle wheel

Washer⑥

WasherLock nut⑦

Lock nut⑧

Connection pipe⑧

Connection pipe⑨

Cylinder⑨

Cylinder⑩

Pressure screw⑩

Pressure screw⑪

Gasket⑪

Gasket⑫

O ring⑫

Packing ring⑬

Gland packing⑭

Gland bushiuy

For low pressure(600LB or lower)

For high pressure(900,1500LB)

4.3 Maintenance and Check
To maintain maximum efficiency on Control Valves, it is recommended to check or proceed maintenance work
as follows. (See Paragraph 11. Trouble shooting on page 38 〜 39)(1) Daily Check
Check leakage, abnormal sound, vibration and/or hunting(2) Periodical Check ...... [Annually]
Check each part of Valves, re-tighten Gland and replenish/replace Grease if necessary.
(3) Overhaul ...... [Body: Once in every 2 years, Actuator: Once in every 5 years]
Disassemble Valves and check internal parts. (See Chapter 5)

WARNING

8

When leakage is found from the Valve or piping, Do Not Touch or Access tothe fluid until the safety is confirmed by proper responsible person.

Model 01, 05, 83A, 83, 89

5Disassembly & Assembly
Following is recommended procedure to disassemble or re-assemble valves.

CAUTION① Please prepare following spare parts available before disassembly:
Gland Packing, Gasket Packing. (Do not reuse the used Gland Packing,Gasket Packing.)② Prepare required Tools in advance.
③ Never disassemble Valves on system under existing inside pressure or
before cooling down of Valves completely.
④ Do not turn Valve Stem when Valve is closed.
⑤ On Model 2800 spring diaphragm Actuator, Do Not Turn Spring Adjuster.
Turning of Spring Adjuster makes change of Spring Range limit, upperand lower.

5.1 Split of Actuator from Valve Body (See. Fig. 5-1)

WARNINGTo disassemble Valves on system line, Close the line and Release all thesystem pressure in advance.

(1) Place fitting mark on each connecting parts before disassembling.
(2) Hold Valve Plug at full open position depressurizing supply pressure to zero on direct action Actuator or supplying
Air pressure on reverse action Actuator.
(3) Loosen Stem Nut and Pointer together and go downward, then lock. On Actuator size N33 and larger, lower
Locking Plate together.
Thread size of Valve Stem and Top Stem is as follows.
Actuator size

ThreadN28

M9, P1.25

N33

M12, P1.75

N40

M18, P2.0500

W3/4-10650

W7/8-9Fig. 5-1 Removing Actuator

Top Stem
Stem Nut
PointerStem Nut
Yoke Nut(4) Turn the stem nut to lower the valve stem and remove thevalve stem from the top stem.
(5) Loosen and remove the yoke nut (yoke bolt).
(6) Lift the actuator stralght up and remove it from the valve

Valve stem

body.

9

Model 01, 05, 83A, 83, 89
5.2 Disassembling and Re-assembling of Valve Body
To disassembling or re-assembling Valve Body, follow the procedure below. (See Fig. 5-2 〜 5-6).

5.2.1 Disassembling Procedure(1) Remove Stud Bolt Nuts.
(2) Pull up Valve Plug together with Bonnet upright and split it from Valve Body.
(3) Loosen Bottom Cover Clamping Nuts and remove Bottom Cover.
(4) Loosen Gland Nuts and release the tension of Gland Packing.
(5) Pull down Valve Plug from Bonnet.

CAUTION

For Models 01 and 05, with push-down open Bodies, remove① Bottom Cover, ② Valve Plug and ③ Bonnet in order.

(6) Remove Gland Bushing, Gland Packing, Lantern Ring and Packing Ring from Bonnet gland.
(7) To remove the Seat-Ring (only when required), a special tool is required.
(8) For Cage Guide Type Control Valves (Model 83A, Model 83), remove Cage from the Body.

5.2.2 Inspection of the Parts
After disassembling, each parts should be cleaned and checked as follows.
(1) Check seat surface of Seat-Ring on Valve Body, Valve Plug, Guide and Cage to be free from any damage
and/or deformation.
(2) Check Body and Bonnet wall thickness decreased. Check Body and Bonnet sealing surface of Gasket
Packing and Gland Packing to be free from any damage and/or deformation.
(3) Check the appearance of Valve Plug, Stem, Holder, Cage and sliding surfaces of each parts to be freefrom corrosion, erosion, damage and/or deformation.
If any damage and/or deformation are found on each parts, repair or replacement are required. To
request repair or spare parts, be sure to inform MOTOYAMA sales office the Serial Numbers of Valvesspecified on Name Plate.

5.2.3 Re-assembling Procedure

CAUTION① Be sure to apply anti-seize grease (NEVER-SEEZ ® or equivalent) on SealRing surface of Gasket.
② For “Oil Free” requirement, apply Fluorine type grease (DEMNAM GREASE
L200 ® or equivalent) slightly【Note】 NEVER-SEEZ ® : products of BOSTICK, DEMNAM GREASE L200 ® : products of DAIKIN

10

Model 01, 05, 83A, 83, 89
5.2.3.1 Model 01, Model 05 …… Top and Bottom Guide Type
(1) Mount Gasket to sealing surface (on the other side of Seat) at bottom of Body and fit Bottom Coverproperly into sealing surface of Body.
(2) Apply an appropriate anti-seize compound to Bottom Cover fastening Bolt and tighten lightly.
(3) If Seat-Ring had been removed, thread Seat-Ring into Body and tighten it firmly with a special tool.
(4) Align Valve Plug to Stem and insert it into Body.
(5) Install Gasket to sealing surface at the top of Body and put Bonnet in place on the sealing surface.

CAUTIONFor Valves with push-down open Bodies, assemble① Seat-Ring (if removed), ② Bonnet, ③ Valve Plug and ④ Bottom Cover inorder.

(6) Apply anti-seize grease on Stud Bolts and tighten Nuts slightly.
(7) Be sure to check smooth movement of Valve Stem up and down. Insert Gland Packing one by one into
Bonnet Gland with applying grease on it (See Fig. 5-12 and Table 4-1 on page 6). Be sure to installeach Packing uniformly around Stem. On braided Packing, each cut end should be placed opposite
position, 180 degree apart.
(8) Install Gland Bushing, Wiper and Gland Flange in order. Tighten Gland Nuts alternately and uniformly.
Required torque is as follows.
unit : N-cm (kgf-cm)
Actuator size

PTFE V-Packing (＋ Braid Packing)Braid Packing

N28 〜 N33S

100 〜 500 (10 〜 50)

200 〜 800 (20 〜 80)

N40 〜 650

150 〜 700 (15 〜 70)

1000 〜 2500 (100 〜 250)

【Note】Required torque is varies depend on type of Gland Packing, service condition, temperature andpressure. This table shows standard torque for reference.

(9) Install Stem Nuts and Pointer.
(10) Tighten Stud Nuts alternately and uniformly.
(11) Be sure to confirm smooth movement of Valve Plug (Valve Stem) up and down.

11Model 01, 05, 83A, 83, 89
Fig. 5-2 Seal-Ring Check before Assembling

For general use

PTFE＋Braid Packing

Wiper
Gland Bushing
Packing Seat
Braid Packing

Braid Packing

Braid
Packing

Adapter
PTFE V-Ring

Packing Seat
Braid Packing
Packing Seat
Lantern Ring
SpacerSpring Sheet

LanternRing

Lantern Ring

Packing
Ring

Braid Packing
Packing Ring

Fig. 5-3 Model 01 (push-down close)

Fig. 5-4 Model 05 (push-down close)

Stem Nut
Pointer
Valve StemGland Nut
Gland Bolt

Gland Flange

Gland Bolt
Yoke Nut

Yoke Nut
Gland Packing
BonnetPointerStem Nut
Valve StemGland Nut
Gland Flange

Stud Bolt
Gland Packing
BonnetNut

GasketBody

Seat-Ring
Valve Plug

Valve Plug

Seat-Ring

Body
Seat-Ring

GasketStud Bolt
Bottom Cover
Nut

12Stud Bolt
GasketBottom Cover
Nut

Lubricator

Model 01, 05, 83A, 83, 89
Fig. 5-5 Model 83A, Model 83

Fig. 5-6 Model 89

Size 1 inch or smaller

Valve StemGland Flange

Gland Nut

Yoke Nut

Gland Bolt

Gland Packing
Guide
Nut
BonnetStud Bolt
Gasket (C)Gasket (B)Valve Plug
Cage
Valve Stem

Gasket (A)Gland Flange

Gland Bolt

Body

Gland Nut
Yoke
Yoke Nut
Gland Packing
Bonnet【Note】Please be noted that configuration of Cage between
Model 83 and Model 83A is different depending on

Stud Bolt

valve size. For the details, please refer to our

Body

Nut

catalogue on each Model.
GasketGuide

Seat-Ring
Valve Plug

Size 1 1/2 inch or Larger

5.2.3.2 Model 83A, Model 83 …… Cage Guide Type(1) Install Spiral Wound Gasket (A) on Body lower groove and Serrated Gasket (B) on Body upper groove.
Install Cage and Guide on Gasket (A) and (B).
(2) Insert Valve Plug and Stem assembly into Guide and Cage.
(3) Insert serrated Gasket (C) on Cage or Guide, cover Bonnet and fit on sealing surface. At this point, besure to align Body, Guide, Valve Plug and Bonnet.
(4) Follow the procedure on Paragraph 5.2.3.1 (3)〜(11) for further assembly.

5.2.3.3 Model 89 …… Top Guide Type
Follow the procedure on Paragraph 5.2.3.1 (3)〜(11) for further assembly.

13Model 01, 05, 83A, 83, 89
5.3 Disassembling and Re-assembling Model 3800 Actuator
This Multi-Spring Type Diaphragm Actuator requires no site adjustment. To modify Actuator or parts replacement,
disassemble or re-assemble as follows, See Fig. 5-7 to 5-9 for reference.
Actuator should be placed vertically to disassemble or re-assemble.

WARNING

Before disassembling, be sure Actuator operating pressure to be zero(0) toprevent accident.

5.3.1 Disassembling(1) Put matching mark on Cover and Case.
(2) Remove air pipes and accessories.
(3) Loosen and remove Case clamping Hexagon Bolts and Nuts.
(4) Alternately loosen Eye Bolts and Nuts evenly and remove them. (Springs are under initial compression by
these Eye Bolts). The initial compressing length is fixed according to rated travel and Spring Range,
independent of Actuator size. (See Table 5-1)

Table 5-1 Initial Compressing length of springs
Unit : mm
Rated Travel (mm)

15

20

25

38

50

65

20 〜 100 (0.4 〜 1.75)
40 〜 200 (0.4 〜 2.0)

2

4

5

8

10

13

80 〜 200 (0.4 〜 2.0)

9

12

15

23

31

40

120 〜 280 (1.2 〜 2.8)

9

13

17

27

36

Spring Range [kPaG (kgf/cm2G)](5) Remove Cover.
(6) For direct acting Actuator, pull upward Diaphragm assembly and take out springs.
(7) For reverse acting Actuator, take out springs and pull upward Diaphragm assembly.
(8) Inspect disassembling parts for damage, deformation, corrosion or paint flaking.

CAUTION

14

Numbers of Spring Guide is different depend on the spring range.

Model 01, 05, 83A, 83, 89
5.3.2 Re-assembling
5.3.2.1 Direct Acting Actuator(1) Place Springs on Spring Guides in Case Assembly (See Fig. 7-2). If spring range is other than 20 〜
100kPaG (0.2 to 1.0kgf/cm2G), cover Spring Guides over the Spring.
(2) Insert Top Stem of Diaphragm Assembly into Stuffing Box of the Case. Set Lift Stopper to the directionof the Clamping Bolt in the Case.
(3) Place Cover on Case by aligning with Air Connector and tighten two Eye Bolts at specified places evenly.
(4) Put Hexagon Bolts in the remaining places and tighten Case and Cover evenly.
(5) Connect air piping to air pipe connector on Cover.

5.3.2.2 Reverse Acting Actuator(1) Insert Top Stem of the Diaphragm Assembly into Stuffing Box of Case Assembly. Pay attention to avoid
damage to the seal.

CAUTION

When inserting Top Stem into Stuffing Box, pay attention to Guide or SealPacking, etc. not to damage by Top-Stem tip, etc.. Otherwise, leak may
occur.

(2) Place springs on Spring Guides in Diaphragm Assembly (See Fig. 7-2). If spring range is other than
20 〜 100kPaG (0.2 to 1.0kgf/cm2G), cover Spring Guides over the Spring.
(3) Place Cover on Case by aligning with exhaust hole and tighten two Eye Bolts at specified places evenly.
(4) Put Hexagon Bolts in the remaining places and tighten Case and Cover evenly.
(5) Screw in Exhaust Cap with fingers. Until it does not get loose.
(6) Connect air pipe to the connector below Case.

5.3.3 Checking after Assembling
Check followings after Assembling is completed.
(1) Apply air pressure of 360kPaG (3.6kgf/cm2G) from Air Connector and check leakage from outer edges ofDiaphragm Case and Cover using foaming agent.
For Actuator size of N33S and N40, check leakage with air pressure 480kPaG (4.8kgf/cm2G).
(2) Reciprocate Actuator to check that it smoothly operates over entire stroke.

15Model 01, 05, 83A, 83, 89
Fig. 5-7 Model 3800 Actuator(a) Model 3800 Direct Acting Actuator(b) Model 3800 Reverse Acting Actuator
Part Name

No.
①

Case

②

Cover

③

Diaphragm Assembly④

Spring Assembly⑤

Hexagon Bolt⑥

Hexagon Nut⑦

Eye Bolt⑧

Stem Nut⑨

Pointer⑩

Indicator scale

⑪

Screw

⑫

Name Plate⑬

Round head slotted revet⑭

Exh. Cap⑮

Locking Plate※【Note】※Locking plate is mounted only for actuator size N33 and N40. (ref. Fig (i))(c) Cover(d) CoverDirectAction

ReverseAction(e) Diaphragm Assembly(f) Diaphragm Assembly

See Fig. 6-2 springarrangement

Air connectoror Exh. hole

No.
No.

② Plate① Diaphragm⑤ Lift Stopper④ Top Stem
⑤ Lift Stopper② Yoke⑥ O-Ring

Stuffing Box③ Assembly⑦ O-Ring

se
In
rt

®
⑥ Diestat(Diethread ®)Apply grease① Caseyoke④ Top StemPart Name④ O-Ring⑧ Spring Washer⑤ Hexagon Bolt

⑨ Hexagon Nut⑥ Diestat ®

ke
yo

rt

in

⑦ Flat Washer

to
in

to

③ Stopper③ Stopper

No.

In
se

② PlatePart Name① DiaphragmPart Name⑧ Spring Washer⑨ Hexagon Nut⑩ Spring Guide⑪ O-Ring Holder⑦ Spring Guide(g) Case Assembly(i) Stem Connection (N33, N40)No.

Top StemPart Name

Locking Plate① Stuffing Box② GuidePress fit

③ Seal Packing④ Dust Seal(h) Stuffing Box Assembly16Model 01, 05, 83A, 83, 89
Fig. 5-8 Model 3800 Direct Acting Actuator
Cover

Hexagon Bolt

Eye Bolt
Air pipe connector
Lift stopper
Eye bolt
Diaphragm Assembly

Top Stem
Air connector
Spring(N28, N33S)

Air connector(N24, N40)

Hexagon Nut

Eye Bolt

Case Assembly

Fig. 5-9 Model 3800 Reverse Acting Actuator
Exh. cap

Cover

Eye Bolt
Hexagon Bolt

Exh. hole
Lift stopper
Eye Bolt
SpringDiaphragm Assembly

Exh. hole(N28, N33S)

Exh. hole(N24, N40)

Top StemHexagon Nut

Eye Bolt

Case Assembly17Model 01, 05, 83A, 83, 89
5.4 Disassembling and Re-assembling Model 2800 Actuator
This Single-Spring Type Diaphragm Actuator requires no site adjustment. To modify Actuator or parts replacement,
disassemble or re-assemble as follows, See Fig. 5-10 to 5-11 for reference.
Actuator should be placed vertically to disassemble or re-assemble.

WARNING

Before disassembling, be sure Actuator operating pressure to be zero(0) toprevent accident.

5.4.1 Disassembling
5.4.1.1 Direct Acting Actuator(1) Put matching mark on Cover and Diaphragm Case.
(2) Remove air pipes and accessories.
(3) Loosen Adjust Screw to completely free springs.
(4) Loosen and remove Diaphragm Clamping Bolt and Nut.
(5) Remove Cover.
(6) Pull out Diaphragm Assembly upward.
(7) Take out Springs.
(8) Inspect disassembled parts for damage, deformation, corrosion or paint flaking.

5.4.1.2 Reverse Acting Actuator(1) Put matching mark on Cover and Diaphragm Case.
(2) Remove air pipes and accessories.
(3) Remove Cap and loosen Adjust Screw to completely free springs.
(4) Loosen and remove Diaphragm Clamping Bolt and Nut.
(5) Remove Cover attached Spring Case.
(6) Pull out Springs Seat, Bearing Ball and springs.
(7) Pull out Diaphragm Assembly upward.
(8) Inspect disassembled parts for damage, deformation, corrosion or paint flaking.

5.4.2 Re-assembling
5.4.2.1 Direct Acting Actuator(1) Place Springs on Spring Seat.
(2) Insert Top Stem of Diaphragm Assembly into Bush of Adjust Screw.
(3) Place Cover over the Case and tighten Bolts evenly.
(4) Connect air piping to Air Connector on Cover.

18Model 01, 05, 83A, 83, 89
5.4.2.2 Reverse Acting Actuator(1) Insert Top Stem of Diaphragm Assembly into Stuffing Box of Case Assembly. Pay attention to avoid
damage to seal.

CAUTION

When inserting Top Stem into Stuffing Box, pay attention to Guide or SealPacking, etc. not to damage by Top Stem tip, etc.. Otherwise, leak may
occur.

(2) Place Springs on Diaphragm plate and then place Spring Seat and Bearing Ball.
(3) Place Cover and tighten Bolts evenly.
(4) Screw in Adjust Screw until it contacts to the Springs.
(5) Connect air piping to Air Connector on Yoke.

5.4.3 Adjustment and Checking after Assembling(1) Attach a pressure gauge or manometer to air piping. Turn Adjust Screw to tighten springs and gradually
apply air pressure, observing pressure indicator. Adjust clamping force of springs so that Top Stem
starts to move right at the starting pressure of the spring range.
(2) For reverse acting Actuator, adjust the spring range first and then lock Adjust Screw and screw Cap in.
(3) Apply air pressure of 350kPaG (3.5kgf/cm2G) from Air Connector and check leakage from outer edges ofDiaphragm Case and Cover using forming agent.
(4) Reciprocate Actuator to check that it smoothly operates over the entire stroke.

CAUTION

Both Actuators Model 3800 and Model 2800 are spring-incorporated type,
When disassembling, follow the procedures described in this instruction
Manual strictly. Otherwise, Spring may be popped out strictly.

19Model 01, 05, 83A, 83, 89
Fig. 5-10 Model 2800 Direct Acting Actuator

Air Connector
Cover
Diaphragm Assembly

Diaphragm Assembly

Bolt

Nut

Nut

Diethread®

Case

Stopper

SpringDiaphragm

Yoke
Spring Seat

Diaphragm Plate
Top StemExhaust HoleThrust Ball Bearing

Adjust Screw

Fig. 5-11 Model 2800 Reverse Acting ActuatorCap
Adjust Screw
Spring Seat
SpringSpring Case
Cover
Diaphragm Assembly

Diaphragm Assembly
Nut
Diaphragm Plate

Bolt

Diaphragm

Nut

O-Ring Holder

Case

O-RingYoke

Top Stem

Air Connector
Stuffing Box

20

Bearing Ball

Model 01, 05, 83A, 83, 89

6Adjustment and Test
6.1 Adjustment
Diaphragm operated Control Valves require no on-load adjustment. To adjust travel after re-assembling Actuator
to Valve Body, follow the procedure below, see Fig. 5-3 to Fig. 5-7 and Fig. 5-10 to Fig. 5-11.

6.1.1 Direct Acting Push-Down Close Control Valves(Direct Actuators)
6.1.1.1 Model 3800 Actuator(1) Install Actuator to Valve Body and tighten Yoke Nut (Yoke Bolt) firmly.
(2) Connect air piping to Air Connector in Cover.
(3) Fully thread Valve Stem into Top Stem.
(4) Apply operating air pressure to Top Stem to lower Actuator Stem down its lowermost level.
(5) Turn Valve Stem to further lower Top Stem until Valve Plug seats on the seating surface.
(6) Reduce air pressure to be about 50% of the operating air pressure (valve is semi-opened) to lift Valve
Stem once, and turn Valve Stem specified rotations (See Table 6-1) to lower Valve Stem and thensecure it with Stem Nut.
(7) Apply operating air pressure to Actuator to let Valve Plug seat on the seating surface. Then align Pointerto “SHUT” position on Indicator Scale and secure Pointer with machine screw.
(8) Increase/decrease air pressure to Actuator to check the valve operation to open or close smoothly.

6.1.1.2 Model 2800 Actuator(1) Install Actuator to Valve Body and tighten Yoke Bolt firmly.
(2) Connect air piping to Air Connector in Cover.
(3) Fully thread Valve Stem into Top Stem and lightly lock Stem Nut. Temporarily set Pointer to “OPEN”
position on Indicator Scale.
(4) Gradually apply operating air pressure to Actuator to lower Valve Stem until Pinter meets “SHUT”
position.
(5) Loosen Stem Nut and turn Valve Stem to lower until Valve Plug seats on seating surface.
(6) Tighten Stem Nut to secure Top Stem.
(7) With Valve Plug seated on seating surface, place Pointer position to indicate “SHUT” position.
(8) Increase/decrease air pressure to Actuator to check the valve operation to open or close smoothly.

21

Model 01, 05, 83A, 83, 89
6.1.2 Reverse Acting Push-Down Close Control Valves(Reverse Actuators)(1) Connect air piping to connector in Case.
(2) Apply operating air pressure to Actuator to place Actuator Stem at its uppermost level completely.
(3) Install Actuator to Valve Body and tighten Yoke Nut firmly.
(4) Fully thread Valve Stem into Top Stem and reduce air pressure to 0kPaG (0kgf/cm2G).
(5) Turn Valve Stem to lower it until Valve Plug seats on the seating surface.
(6) For Model 3800 Actuator, increase air pressure to be about 50% of the operating air pressure (Valve issemi-opened) to lift Valve Stem once, and turn Valve Stem specified rotations to lower it and thensecure it with Stem Nut. At this time, use number of rotations shown in Table 6-1 for reference.
(7) For Model 2800 Actuator after procedure (5) above, increase air pressure to be about 50% of the operating
air pressure (valve is semi-opened) to lift Valve once, and turn Valve Stem by 3/4 turn to lower it andthen secure it with Stem Nut.
(8) Reduce air pressure to Actuator to 0kPaG (0kgf/cm2G) to let Valve Plug seat on the seating surface andset pointer position to indicate “SHUT” position.
(9) Increase/decrease air pressure to Actuator to check the valve operation to open or close smoothly.

6.1.3 Reverse Acting Push-Down Open Control Valves(Model 2800 Direct Acting Actuators)(1) Install Actuator to Valve Body and firmly tighten Yoke Bolt.
(2) Connect air piping to Air Connector in Cover.
(3) Fully thread Valve Stem into Top Stem.
(4) Turn Valve Stem to lift it until Valve Plug seats on the seating surface.
(5) Increase air pressure to be about 50% of the operating air pressure (valve is semi-opened) to lift Valve
once, and turn Valve Stem by 3/4 turn to lower it and then secure it with Stem Nut.
(6) Reduce air pressure to Actuator to 0kPaG (0kgf/cm2G) to let Valve Plug seat on the seating surface andset pointer position to indicate “SHUT” position.
(7) Increase/decrease air pressure to the Actuator to check the valve operation to open or close smoothly.

Table 6-1 Rotations of Valve Stem for Model 3800 Actuator Mounted Control Valves(Number of Rotations)

Stem Screw/Pitch
Actuator Size

50

65

Decimal Fractional Decimal Fractional Decimal Fractional Decimal Fractional
Number Number Number Number Number Number Number Number

N24

M9

1.25

1.2

11／50

―

―

―

―

―

―

N28

M9

1.25

1.2

11／50

1.6

13／5

―

―

―

―

N33

M12

1.75

0.86

9／
10

1.14

11／10

1.43

12／5

―

―

0.75

3／
40

1.25

11／4

1.75

13／4

N40

M18

2.0

Adjustment Allowance (mm)

22

38

〜 25

Valve Travel (mm)

1.5

1

1.0
2.0

2.5

3.5

Model 01, 05, 83A, 83, 89
6.2 Test
After valve is assembled and adjusted, check followings to assure integrity of the valve.
(1) Appearance.
(2) Leakage from Actuator air piping connection.
(3) Shell tightness of Valve Body.
(4) Operating performance.

7

Change of Valve Action and Actuator
7.1 Purpose
Sometimes, change of valve action, stroke or spring would be required at site to cover the change of operating
condition, process condition or control condition. To change valve action and Actuator, follow the procedure
below.

7.2 Change of Valve Action
7.2.1 Model 3800 Actuator Mounted Valves
Valve Body is push-down close. To change from direct action to reverse action or from reverse action to direct
action, it is recommended to replace a complete set of Actuator assembly.
Valve Stems may also be needed to be replaced. Please contact MOTOYAMA’s sales office to change parts.

7.2.2 Model 2800 Actuator Mounted Valves
7.2.2.1 Model 2801 and Model 2805 Control Valve
Valve Body is either push-down close or push-down

Fig. 7-1 Valve Stem Connection

open for Valve Pulg action, and is combined withdirect acting actuator. It is possible to change frompush-down open to push-down close or rice versa
as follws without changing any parts.
(1) Diassemble Valve Body following the proceduesin chapter 5 and then take out the Valve Plug.
(2) Remove grooved pin that secures the Valve Plugto Valve Stem to remove Valve Stem. (SeeFig. 7-1)(3) Remove grooved pin that secures the Valve Plugto Valve Stem to remove Valve Stem. (SeeFig. 7-1)(4) Screw Valve Stem to the opposite side of Valve
Plug (most of valves have already been
threaded) and drill a pin hole away from theoriginal place. Then fammer a grooved pin. Pay
attention not to drill a new hole over the original
pin hole on Stem.

23

Model 01, 05, 83A, 83, 89(5) After pin is hammered check alignment of the Stem. Turn Valve Pulg on V-block by supporting Guide
and check straightness of Plug assembly. If any run-out is found, bend or correct Stem to be straight.
(6) Turn over Body and fit Bonnet to the side where Bottom Cover had been installed. Then insert Valve
Plug from the opposite side. Hereafter re-assembling Valve Body by follwing procedures as stated inchapter 5.
(7) Turn over the Indicator Scale and install it by reversing “OPEN” and “SHUT” indications.

7.2.2.2 Model 2883A, Model 2883 and Model 2889 Control Valve
The Valve Body is push-down close. To change valve action, a complete set of Aactuator must be
replaced.

7.3 Change of Stroke and Spring Range(1) When change of valve stroke and/or spring range required, it is recommended to repace a complete set of
Actuator assembly. Following parts are required to change.

Table 7-1. Parts Required for Changing Stroke or Spring Range
Actuator Model No.

3800

2800

Stroke Change

Spring Range
ChangeStroke Change

Diaphragm Plate

―

―

○

○ [Note1]

Lift Stopper

○

―

○

―

Spring○○○○ [Note1]

Spring Guide―○ [Note1]――

Spring Seat

―

―

○

○ [Note1]

Distat®(Diethread®) [Note2]

○

―

○

―

Indicator Scale

○

―

○

―

Name Plate

○

○

○

○

Part Name

Spring Range
Change【Notes】(1) Depending on spring range classification, replacement of above parts may not be reuired.
(2) Diestat ® (Diethread ®) is trade name of Mitsubishi Electric Wire Co.,Ltd.

(2) Identification and quantity of Spring used for Model 3800 Actuator is listed in Table 7-2 and spring allocationis shown in Fig. 7-2.

24Model 01, 05, 83A, 83, 89
Table 7-2 Identification and quantity of spring used for Model 3800 Actuator
Actuator Size
N24
Paint Color
Black
Item
Quantity of
Springs
ID Color
Travel(Type)
Spring Range
None
4 (A)
15
Red, one band4 (A)20 〜 100kPaG 20
Puple, one band
4 (A)
25
38
0.2 〜 1.050
kgf/cm2G
65
Blue, one band
4 (A)15
Yellow, one band4 (A)40 〜 200kPaG 20
Brown, one band
4 (A)
25
38
0.4 〜 2.050
kgf/cm2G
65
White, one band
4 (A)15Green, one band4 (A)20
80 〜 200kPaG＊ 2 (A)25
8 (4set) Silver, one band

（

N28
Blue
Quantity of
Springs(Type)ID Color

4 (B)
4 (B)
4 (B)
6 (C)

）

（

）

0.8 〜 2.0
kgf/cm2G（）

Quantity of
Springs(Type)ID Color

None
Black, one band
Purple, one band
Red, two band

4 (D)
4 (D)
4 (D)
4 (D)
4 (D)

Yellow, two band
Brown, two band
Blue, two band
None
Purple, one band

4 (B)
4 (B)
4 (B)
6 (C)

Red, one band
Yellow, one band
Brown, one band
White, two band

4 (D)
4 (D)
4 (D)
＊ 18 (E)＊ 18 (E)White, one band
Silver, two band
Black, one band
None
Purple, one band

4 (B)
4 (B)

White, one band
Green, one band

4 (D)
4 (D)

6 (C)

Silver, one band＊ 2 (A)
12 (6set)

38

N33
Green

2 black band

Quantity of
Springs(Type)ID Color

Purple, two band
Red, two band

4 (F)
4 (F)
4 (F)
4 (F)
4 (F)
4 (F)
4 (F)
4 (F)
4 (F)
＊ 18 (G)＊ 18 (G)＊ 18 (G)
4 (F)
4 (F)

Red, two band
Green, two band
Silver, two band
White, one band
None
Purple, one band
Blue, two band
Brown, one band
Red, one band
White, one band
None
Purple, one band
White, two band
Brown, two band4 (D)Yellow, one band

4 (F)Blue, one band

8 (E)Brown, one band

8 (G)Yellow, one band

Silver, one band

8 (G)Green, one band＊ 2 (E)16 (8set)

50

N40
Black

Brown

Paint Color

120 〜 280kPaG
1.2 〜 2.8
（kgf/cm
G）
2

4 (D)
4 (D)
8 (E)
8 (E)

15
20
25
38
50

None
Red, one band
Blue, one band
White, one band

Red
4 (F)
4 (F)
4 (F)
8 (G)
8 (G)

None
Blue, one band
White, one band
Black, one band
Brown, one band(2) ＊ 1 is common to 20 〜 100kPaG spring range;quantity of springs differs.
(3) ＊ 2 indicates double spring with same ID color.
(4) The type beside number of springs indicates typesof spring arrangement drawings.

【Note】(1) ID colors are marked as follows.
Marking of one pitch or more.
Ex. 1: white, two bands
Ex. 2 : silver, one band

Fig. 7-2 Spring Arrangement for Model 3800 Actuator
B Type (N28)

C Type (N28)

D Type (N33S,L)

Arrangement

A Type (N24)※ (DA)※ (RA)※ (RA)F Type (N40)※ (DA)※ (RA)※ (DA)※ (RA)G Type (N40)

Arrangement

E Type (N33S,L)※ (DA)※ (DA)※ (RA)※ (DA)※ (RA)※ (DA)※ (RA)【Notes】(1) Hatchings indicate spring guides where springs are arranged.
(2) ※ represents hexagon bolt location.

25

Model 01, 05, 83A, 83, 89

8

Hand Wheel Mounted on Actuator
8.1 Operating, Disassembling and Re-assembling of
Side-Mounted Handwheel
8.1.1 Side-mounted Handwheel on Model 3800 Actuator
8.1.1.1 Operating(1) Don’t operate Handwheel under perssure loading to Actuator.
(2) To operate Actuator manually, release Handle Lock that restrains Handle, grasp the grip tightly and thenturn Handle. Turning Handle clockwise, to lower Top Stem in either case Actuator is direct orreverse acting type.
(3) To return to the automatic operation, turn Handle to be “NEUTRAL” and make Handle Lock ettective.

CAUTION① Be sure to operate Handle manually, and do not give any excessive force
by tools such as Handle turning device, etc.
② Never turn it further from fully open position to open direct action type ornever turn it further from fully closed position to close on reverse action
type.
◎ In any case, such a further turning may cause deformation or damage ofrelated parts.

Fig. 8-1 Side-mounted Handwheel on Model 3800 Actuator

Rc 1 / 4

Arrow View

Arrow View

NEUTRAL

26

No. Part NameNo.

Part Name

①

Case

⑯

Eye Bolt

②

Yoke

⑰

Indicator Scale③

Stuffing Box⑱

Cross Heatd④

O-Ring⑲

Crank Case⑤

Dust Steal⑳

Handle

⑥

Cover

⑳
⑪

Crank

⑦

Diaphragm

⑳
⑫

Shaft

⑧

Plate

⑳
⑬

Screw Block⑨

Top Stem⑳⑭

Bearing Holder⑩

Lift Stopper⑮⑳

Handle Lock⑪

Diethread ®

⑳⑯

Stud Bolt⑫

Spring⑰⑳

Hexagon Nut⑬

Spring Guide⑳⑱

Indicator⑭

Hexagon Bolt⑳⑲

Spanner⑮

Hexagon Nut

Model 01, 05, 83A, 83, 89
8.1.1.2 Disassembling, Re-assembling and Check(1) Before disassembling, turn Handle till Indicator (See Fig. 8-1) reaches “NEUTRAL” position.
(2) Loosen Hexagon Nut ⑳⑰ to remove Handwheel from Actuator.
⑪ in order. This complete(3) Remove Handwheel ⑳ , Bearing Holder ⑳⑭ , Shaft ⑳⑫ and Crank ⑳

disassembling.
(4) When re-assembling, reverse the order of the disassembling. (Apply anti-seize gleese to thethreaded parts such as NEVER-SEEZ ®.)(5) After Handwheel is assembled, check movement to be smooth over entire stroke.
【Note】Use exclusive spanner equipped with Crank Cace for tightening Gland Bolt when Actuator size is N24,
N28 or N33S. (See Fig. 8-1)

8.1.2 Side-mounted Handwheel on Model 2800 Actuator
8.1.2.1 Operating(1) Don’t operate Handwheel under perssure loading to Actuator.
(2) Grip tightly and turn Handle. Turning Handle clockwise to lift Top Stem on 650S/L and to lower Top
Stem on 500S/L, in either case Actuator is direct or reverse acting type.
(3) To return to the automatic operation, turn Handle to be “NEUTRAL”.

CAUTION① Be sure to operate Handle manually, and do not give any excessive force
by tools such as Handle turning device, etc.
② Never turn it further from fully open position to open direct action type ornever turn it further from fully closed position to close on reverse action
type.
◎ In any case, such a further turning may cause deformation or damage ofrelated parts.

8.1.2.2 Disassembling, Re-assembling and Check(1) Before disassembling, turn Handle till Indicator (See Fig. 8-1) reaches “NEUTRAL” position.
(2) Disassembling side-mounted Handwheel in proper order. (See Fig. 8-2 and Fig. 8-3)(3) When re-assembling, reverse the order of the disassembling. (Apply anti-seize gleese to the threadedparts such as NEVER-SEEZ ®.)(4) After Handwheel is assembled, check movement to be smooth over entire stroke.

27Model 01, 05, 83A, 83, 89
Fig. 8-2 Size 500 D／R Side-mounted Handwheel on Model 2800 Actuator

Direct Action

Reverse Action

No.

Part Name

①

Yoke

②

Bush

③

Adjuster④

Top stem Sleeve⑤

Diaphragm Plate⑥

Diaphragm⑦

Diaphragm Case⑧

Diaphragm Cover⑨

Worm Wheel

⑩

Body

⑪

Cap

⑫

Spindle⑬

Nut⑭

Indicator Plate⑮

HandleFig. 8-3 Size 650 D／R Side-mounted Handwheel on Model 2800 Actuator
Direct Action

Reverse Action
No.

28

Part Name

①

Yoke

②

Adjust Flange③

Spring Case④

Sleeve⑤

Adjuster⑥

Top Stem Sleeve⑦

Diaphragm Plate⑧

Diaphragm⑨

Diaphragm Cover⑩

Diaphragm Case

⑪

Body

⑫

Worm Wheel⑬

Bearing Holder⑭

Indicator Pointer⑮

Indicator Plate⑯

Attachment⑰

Handle⑱

Indicator DiscModel 01, 05, 83A, 83, 89
8.2 Operating, Disassembling and Re-assembling of
Top-Mounted Handwheel
8.2.1 Operating(1) Don’t operate Handwheel under perssure loading to Actuator.
(2) To operate Actuator manually, release Handle Lock that restrains Handle, grasp the grip tightly and thenturn Handle. Turning Handle clockwise, to lower Top Stem in either case Actuator is direct or reverse
acting type(3) To return to automatic operation, turn Handle counterclokwise on direct acting Actuator until the Spindle
is raised fully up to its thread limit so that Pointer points to “OPEN” on Indicator Scale and then lockHandle Lock.
On reverse acting Actator, turn Handle clockwise until screw Shaft is depressed fully down to the thread
limit so that Pointer points “SHUT” on Indicator Scale and then lock Handle Lock.

CAUTION① Be sure to operate Handle manually, and do not give any excessive force
by tools such as Handle turning device, etc.
◎ In any case, such a further turning may cause deformation or damage ofrelated parts.

8.2.2 Disassembling and Re-assembling
8.2.2.1 Direct Acting Actators (See Fig. 8-4)
(1) Disconnect air piping.
(2) Trun Handle to move Spindle up fully, and put the position in automatic operation.
(3) Remove Diaphragm Cover, Hadle, Handle Lock and Spindle in order. This completes disassemblingof Top-mounted Handwheel.
(4) When re-assembling, reverse the order of the disassembling. (Apply anti-seize gleese to the threadedparts such as NEVER-SEEZ ®.)8.2.2.2 Reverse Acting Actators (See Fig. 8-5)
(1) Disconnect air piping.
(2) Trun Handle to lower Screw Shaft fully, and put the position in automatic operation.
(3) Remove Cap, Hadle, Hexagon Nut, Thrudt Ball Bearing, Diaphragm Cover with Bonnet, Screw Shaft
and Handle Lock in order. This completes disassembling of Top-mounted Handwheel.
(4) When re-assembling, reverse the order of the disassembling. (Apply anti-seize gleese to the threadedparts such as NEVER-SEEZ ®.)8.2.3 Checking after Assembling(1) Check Handle operation to be smooth over the entire stroke.
(2) Check leakage from outer edges of Diaphagm Case or Cover with soap water by applying air pressure of
360kPaG (3.6kgf/cm2G) [350kPaG (3.5kgf/cm2G) for Model 2800 Actator] to Actuator from the air connector.

29Model 01, 05, 83A, 83, 89
Fig. 8-4 Top-mounted Handwheel on Model 3800
Actuator (direct action)

No.

30

Part Name

Fig. 8-5 Top-mounted Handwheel on Model 3800
Actuator (reverse action)

No.

Part Name①

Bonnet①

Bonnet②

Spindle②

Diaphragm③

Handle③

Handle④Handle Lock④

Handle Lock

⑤

Plate

⑤

Screw Shaft⑥

Spring Washer⑥

Parallel Key⑦

Hexagon Bolt

⑦

Cap

⑧

Thrust Ball Bearing
with Flat Seats⑨

Hexagon Nut

Model 01, 05, 83A, 83, 89

9Travel Stopper On Actuator
9.1 Classification
Travel stopper are uesd with follwing classification according to the purpose of Control Valves.
Table 9-1. Classification of Travel Stopper
Actuator Action

Stem Limiting
Direction

Symbol

Downward D

DD

Valve Travel
Limiting Direction

Appllcation

SymbolClose STo restrict closed position of push-down close

DDS

Open OTo restrict opened position of push-down open

DDU

Close STo restrict closed position of push-down close

DUS

Open OTo restrict closed position of push-down close

DUO

Direct Action
Upward U

DU

Downward D

RD

Close STo restrict closed position of push-down close

RDS

Upward U

DUOpen OTo restrict opened position of push-down open

DUO

Reverse Action【Note】Travel stopper for Actuator size 500L and 650L cannot be used for limiting travel of 30% or less.

9.2 Adjustment of Travel Stopper (See Fig. 9-1, Fig. 9-2)
9.2.1 Direct Action Downward Limiting …… DD(1) To restrict closed position of push-down close …… DDSLoosen Lock Nut and tighten it until desired travel can be obtained for the dimension from Bonnet top
end to Lock Nut bottom end while applying air pressure and then tighten Lock Nut.
(2) To restrict opened position of push-down open …… DDO
Adjustment is the same as the procedure in 9.2.1 (1) above.

9.2.2 Direct Action Upward Limiting …… DU(1) To restrict closed position of push-down open …… DUS
Apply air pressure to Actuator and open valve as desired. Loosen Lock Nut and turn Spindle clockwise
to lower it to desired limiting travel. Then tighten Lock Nut.
(2) To restrict opened position of push-down close …… DUOAdjustment is the same as the procedure in 9.2.2 (1) above.

CAUTION

Do not Turn Spindle counterclockwise too much or Spindle will come out
from O-Ring and make Actuator in-operative. It is the limit when Diaphragm
Stem stops.

31Model 01, 05, 83A, 83, 89
9.2.3 Reverse Action Downward Limiting …… RD■ To restrict closed position of push-down close …… RDS(1) Model 3800 Actuator Travel Stopper
Loosen Lock Nut and tighten until desired travel can be obtained while applying air pressure and thenlock Lock Nut.
(2) Model 2800 Actuator Travel Stopper
While applying air pressure, insert a tool into a hole on Spindle Guide head to prevent Spindle fromturning. Also, insert a tool into a hole on Lock Nut head, turn it counterclockwise, and loosen the lock tolower until desired limiting trvel is obtained. Then turn Spindle Guide clockwise to screw in to desired
limiting travel. After positioning, tighten Lock Nut.

9.2.4 Reverse Action Upward Limiting …… RU■ To restrict opened position of push-down close …… RUO(1) Model 3800 Actuator Travel Stopper
Loosen Lock Nut and turn Spindle counterclockwise to lift to the desired limiting travel. After positioning,tighten Lock Nut.
(2) Model 2800 Actuator Travel Stopper
Hold limiter with a spanner to prevent from turning and loosen Lock Nut with another spanner. Turnlimiter counterclockwise to lift to the desired limiting trvel and tighten Lock Nut after positioning.

32Model 01, 05, 83A, 83, 89
Fig. 9-1 Model 2800 Actuator Travel Stopper-DDNo.

-RD-

Part NameNo.

Part Name①

Bonnet①

Bonnet②

Spindle②

Spindle

③

Cap

③

Cap

④

Lock Nut④

Lock Nut-DUNo.

-RU-

Part NameNo.

Part Name①

Bonnet①

Bonnet②

Spindle②

Spindle

③

Cap

③

Cap

④

Lock Nut④

Lock Nut

Fig. 9-2 Model 2800 Actuator Travel Stopper-DDNo.

-RDNo.

Part Name

Part Name①

Bonnet①

Spring Case

②

Cap

②

Cap

③

Spindle

③

Seat

④

Grease④

Spindle⑤

Diaphragm Cover⑤

Adjuster⑥

Diaphragm

⑥

Bush

⑦

Diaphragm Plate⑦

Sleeve⑧Diaphragm Stem⑧

Spindle Guide⑨

Stopper

⑨

Union

⑩

Washer⑩

Union Nut⑪

Diethread ®

⑪

Lock Nut

⑫

Union

⑫

Hexagon Nut⑬

Union Nut⑬

Washer⑭

Lock Nut⑭

Seat Bearing⑮

Hexagon Socket
Set Screw⑯

Oil Seal-DU--RUNo.

No.

Part Name①

Bonnet②

Cap③

Spindle④

Grease⑤Diaphragm Cover⑥

Diaphragm⑦

Diaphragm Plate⑧

Diaphragm Stem⑨

Stopper⑩

Washer⑪

Diethread ®

Part Name①

Spring Case

②

Seat

③

Cap

④

Spindle⑤

Adjuster

⑥

Bush

⑦

Head Screw⑧

Limiter⑨

Union Nut⑩

Lock Nut⑪

Lock Nut⑫

Washer⑬

Seat Bearing
Hexagon Socket
Set Screw
Oil Seal⑫

O-Ring⑭⑬

Lock Nut⑮

33

Model 01, 05, 83A, 83, 89

10

Bellows Seal Type Valve
Two types of metal bellows, formed bellows and welded bellows are used in MOTOYAMA Control Valves.
Bellows should be replaced in proper intervals according to the status of Control Valves operations. Whenreplacement of bellows required, please contact MOTOYAM sales office. At this time, kindly inform us valve serial
number to choose correct bellows.
To change bellows, kindly reffer following procedure together with chapter 5 and 6.

CAUTION① Never rotate Valve Stem. Bellows would be-twisted and damaged.
② When disassembling, replace Gaskets on top and bottom of Bellows
Washer and Gland Packing with new ones.

10.1 Split of Actuator from Valve Body (See Fig. 10-1)(1) Place fitting mark on each connecting parts before disassembling.
(2) On direct action Actuator, reduce air pressure to be 0kPaG (0kgf/cm2G), on reverce acting Actuator apply airpressure to Actuator, to keep Valve Stem at full-open position.
(3) Hold flat face of Tee Head and lossen Stem Nut.
(4) Holding Tee Head, loosen Tee Head Retainer to disconnect Valve Stem from Top Stem (See Fig. 10-1 (B)).
(5) Loosen and remove York Nut (York Bolt).
(6) Lift up Actuator straight up and remove from Valve Body.
Fig. 10-1 Stem Coupling Portion

(A)

(B)
Top Stem

Top Stem

Pin
Stem Coupling
Tee Head Retainer
Tee Head
PointerStem Nut
Valve Stem

34

Valve StemModel 01, 05, 83A, 83, 89
10.2 Disassembling and Re-assembling of Formed Bellows Assembly(See Fig. 10-2)
10.2.1 Diasssemling of Formed Bellows Assembly(1) Loosen Bonnet tightening Nut to free Bonnet. At this time, check that process fluid is not leaking insideof Bonnet.
(2) Place a Lock Nut top face position marking on Valve Stem with a scriber.
(3) Hold Nut and loosen and remove Lock Nut to take out Seal-Ring and Bellows Assembly from Valve Stem.
(4) On push-down close Valve Body, loosen Nut that tighten Adaptor Spool and remove Adaptor Spool.
(5) On the push-down open Valve Body (Model 01 and Model 05), loosen Nut that tigten Bottom Cover andremove Bottom Cover and Valve Plug. Then remove Adapter Spool.

Fig. 10-2 Formed Bellows Seal Type

Bellows Assembly
Lock Nut
Seal-Ring
BonnetNut

GasketBellows Washer
Bellows

GasketBellows Assembly
Valve Stem
Adapter Spool

10.2.2 Reasssemling of Formed Bellows Assembly
When re-assembling, reverse the order of the disassembling.

CAUTION① Replace Seal-Ring with a new one.
② When tightening Lock Nut fitting the mark on Valve Stem, apply appropriate
grease to external surface of Seal-Ring. Also apply antiseize grease to
Sleeve thread (See 10.2.1(2)).

35Model 01, 05, 83A, 83, 89
10.3 Disassembling and Re-assembling of Welded Bellows Assembly(See Fig. 10-3)
10.3.1 Diasssemling of Welded Bellows Assembly(1) Loosen Bonnet tightening Nut to free Bonnet. At this time, check that process fluid is not leaking inside of
the Bonnet.
(2) Check that Bellows Washer is not stuck to Adapter Spool. Then pinch flat face of Bellows Stem and turnto separate Bellows Stem from Locking Stem.
(3) Remove Adapter Apool following the procedure in 10.2.1 (4) and 10.2.1 (5) above.

Fig. 10-3 Welded Bellows Seal Type

Bellows Assembly
BonnetValve Stem
Bellows Washer
GasketBellows
Bellows Stem

GasketBellows Assembly
Adapter Spool
Locking Stem

A-A Section

A

A

Locking Bush
Valve Plug10.3.2 Re-asssemling of Welded Bellows Assembly
When re-assembling, reverse the order of the disassembling.

CAUTION

Exercise care to well match the Hexagon of the Locking Bush to the position
and angle of the Locking Stem.

10.4 Connection and Adjustment of Valve Stem (See Fig. 10-1)
10.4.1 Direct Acting Type push-down close control valves(Direct Acting Actuators)
10.4.1.1 Model 3800 Actuator(1) Lower Valve Plug until it Seats on the seating surface.
(2) Fully screw Tee Head with Stem Nut, Pointer and Tee Head Retainer to Valve Stem.
(3) Apply operating air pressure to Actuator to lower Top Stem down to the lowest level.
(4) Turn and raise Tee Head until it hits to the bottom face of Stem Coupling.
(5) Screw Tee Head Rerainer to Stem Coupling by fingers for temporary setting.

36Model 01, 05, 83A, 83, 89(6) Reduce air pressure to be about 50% of the operating air pressure (valve is semi-opend) and loosen
Tee Head Retainer. Then turn Tee Head by specified numbers to lower Valve Stem (See Table 6-1).
(7) Hold Tee Head and lightly lock Stem Nut by hand. Screw Tee Head Retainer to Stem Coupling andtighten it by Stem Nut.
(8) Apply operating air pressure to touch Valve Plug Seat on seating surface, and adjust Pointer position
to indicate “SHUT” on Indicator Scale.

10.4.1.2 Model 2800 Actuator(1) Fully screw Tee Head with Stem Nut, Pointer and Tee Head Retainer to Valve Stem.
(2) Apply operating air pressure to Actuator to lower Top Stem down to the lowest level.
(3) Screw Tee Head Rerainer to Stem Coupling with fingers to lightly lock Stem Nut. Then reduce airpressure of Actuator 0kPa (0kgf/cm2G) to raise Top Stem.
(4) Set temoprarily by placing Pointer so that Indicator Scale points “OPEN”.
(5) Gradually apply operating air pressure to Valve Stem until Pointer points “SHUT”.
(6) Loosen Stem Nut and Tee Head Retainer, and turn Tee Head to lower Valve Plug further unitil Valve
Plug seats on the seating surface.
(7) Tighten the Tee Head Retainer and secure it with Stem Nut.
(8) With the Valve Plug Seat on the seating surface, put “SHUT” on the Indicator Scale to the Pointer.

10.4.2 Reverse Acting Type push-down close control valves(Reverse Acting Actuators)(1) Apply operating air pressure to Actuator to fully raise Top Stem.
(2) Lower Valve Plug until it seats on the seating surface.
(3) Fully screw Stem Nut, Pointer and Tee Head with Tee Head Retainer to Valve Stem.
(4) Reduse air pressure to Actuator 0kPaG (0kgf/cm2G) and turn Tee Head to raise it until it touches the bottom
face of Stem Coupling.
(5) Screw Tee Head Retainer to Stem Coupling with fingers for temporary seting.
(6) Increase air pressure to Actuator by about 50% of operating air pressure (valve is semi-opened)(7) For Model 3800 Actuator, turn Tee Head by specified number of turns Valve Stem (See Table 6-1).
(8) For Model 2800 Actuator, turn Tee Head 3/4 turn to lower Valve Stem.
(9) Hold Tee Head and lightly lock Stem Nut with hand. Screw Tee Head Retainer to Stem Coupling andsecure it with Stem Nut.
(10) Return air pressure to 0kPaG (0kgf/cm2G) to let Valve Plug seat on seating surface, and place on Indicator
Scale to Pointer.

10.4.3 Reverse Acting Type push-down open control valves(Direct Acting Actuators)
The Valve Plug seats on the seating surface in reverse direction of reverse acting type push-down close
Control Valves. Connect Top Stem and Valve Stem and adjust travel by considering this difference and inaccordance with procedure as stated in 10.4.2.

37

Model 01, 05, 83A, 83, 89

11

Trouble Shooting
Following is a list of general Troubles, Causes and Corrective Actions in routine operation of Control Valves.
Table 11-1 Trouble Shooting
Troubles

Check compressor

Large leakage on Air piping

Check air piping

Clogged or leaking on Air piping

Check air piping

Pressure Regulator Valve fault

Check and repair Pressure Regulator

Controller fault

Check controller

Clogged or leaking on signal Air piping

Check air piping

Pilot Valve in Positioner fault

Check and repair Pilot Valve

Large leakage on Actuator

Check Actuator (Diaphragm)

Valve Stem or Guide stick

Disassemble Body and check, repair or
replace

Bend or breakage on Valve Stem

Repair or replace Valve Stem

Foreign matter entrapped on Seat or
between Guide clearances

Disassemble and check valve port

Large clearance between Guide and Plug

Repair or replace Valve Plug and Guide

Loose connections (Valve Stem andValve Plug, Valve Stem and Top Stem,Top Stem and Diaphragm)

Re-tighten connection

Poor de-aeration of fluid

De-aerate fluid

Flashing at outlet of the Valve Plug

Change valve type

Valve vibrates at middle
to maximum openings

Natural vibration (double sealed valves
except for cage type generate when
unbalanced force of Valve Plug reverses)

Change valve type. (ex. cage type)

Plug chatter at almost
fully closed position

Fluid flow to close Valve Plug (flow close)

Change valve Cv or Plug and control
position

Shock waves occur atvalve outlet

Valve size too small (steam)

Enlarge valve size

Insufficient Air source capacity

Add compressor

Pressure Regulator fault

Repair or replace pressure Regulator Valve

Inappropriate resistance or volume ofController

Install valve or volume tank in signal
circuitController fault

Check controller

Positioner fault

Check Pilot Valve
Tighten Positioner connections

Large friction on Valve Stem

Check and repair Valve Stem and Guide

Large friction on Gland Packing

Replace Packing

Resonance with fluids turbulent wave
motion(fluctuations in stem’s thrust due tochanges in fluid pressure)

Reduce differential pressure Change
Actuator, higher rigidity Install rectify
straight pipe on upstream

Valve fails to operate

No supply Air pressure

No signal Air pressure

No Positioner output

Valve no movement evenAir press is working on
Actuator

Vibration or Noise

Vibration and noise in all
range of opening

Supply Air pressure
fluctuates
Valve fails to operate.

Corrective action

Air pressure source (compressor) fault

No signal nor supply airpressure

38

Presumed causes

Signal Air pressure
fluctuates

Neither supply Air nor
signal Air pressure
fluctuates, but valve
huntsModel 01, 05, 83A, 83, 89
TroublesPresumed causes

Too Slow Action

Clogged guide with slurry or solids
Too slow stroke both
direction
Deteriorated and hardened gland Packing

Too slow stroke, one way

Large hysteresis error

Large Leakage

Valve no move beyond
certain travel

Valve Stem fully closed
position

Impossible to move tofully closed position

Disassemble and clean
Change valve type ( Angle type)
Change packing and grease
Change packing material
Install Positioner

Thrust by large differential pressure to
Plug

Install big Actuator

Actuator Air volume is big

Install Positioner or booster

Air leakage from Actuator

Check Actuator

Valve Stem and Guide, no alignment

Check Valve Stem alignment

Deteriorated and hardened gland Packing

Change Packing

Foreign matter entrapped in Valve Plug

Disassemble and clean up

Clogged Valve Stem or Guide with slurryor solid

Disassemble and clean up

Manual Handle position is not set at“NEUTRAL”

Set Handle position “NEUTRAL”

Lack of supply air pressure

Check supply air pressure

Corrosion, erosion or damage on Valve
Seat

Check Seat and repair or lap

Cavity in Valve Body

Repair or replace Body

Corrosion or erosion of thread in Valve
Seat

Change Seat-Ring or Gasket

Large differential pressure

Large differential pressure

Foreign matter entrapped in Valve Plug

Disassemble and clean up

Guide or port seizure

Repair or replace damaged parts

Control position changed, Corrosion or erosion of Valve Plug or
range ability decreased
Cage

Leakage from Gland Packing

Corrective action

Change Valve Plug or Cage

Loose Gland Nut

Re-tighten uniformly

Deteriorated and hardened Gland Packing

Change Packing. Change Packing
material

Incorrect insert of Gland Packing

Re-insert correctly

No Grease

Add Grease

Corrosion, erosion or damage of Valve
Stem

Repair or change Valve Stem

【Caution】If any improvement can not be made even by taking above mentioned corrective actions, Please contact oursales office for further solution.

39

Model 01, 05, 83A, 83, 89

12Recommended Spare Parts
All the parts of Control Valves are designed and manufactured utilizing MOTOYAMA flow Control technology

accumulated over past years. To continue stable operation of Control Valves, it is recommended that the following
genuine parts should be changed periodically as recommended in Table 12-1.

Table 12-1 Overhaul Internal and Recommended Spare Parts
Component

Replacement Part

Disassembling Interval

Replacement Interval

Body

Gland Packing
Gasket Packing

2yearsChange the parts when disassembled

Actuator

Diaphragm
Daisthread ®
Daistat ®
O-RingSeal-Packing
Dust Seal

5yearsCheck and change when necessary(1) When ordering spare parts, be sure to inform us Parts Name and the serial numbers of Valves which is specified on
Name Plate.

CAUTION13

Be sure to use the Genuine Parts only.
Also use the specified Grease described in this manual.
◆ MOTOYAMA has no responsibility for the troubles in-correct or imitatedparts and grease were used.

Disposal of Control Valves and PartsWARNING① Be sure to blow out all the pressures and fluids left in the piping line before
dismounting the Control Valves.
② When harmful fluid remains in the body of the dismounted Valve, disassemble
the Body (See Paragraph 5 on page 9) and clean up internals.
◆ Otherwise, human accident or environmental pollution may be induced.

(1) Basically, Control Valves component parts do not contain any harmful materials for pollution.
When necessary, scrap Control Valves as general metal-discarding materials.
(2) When there is any discarding restriction for asbestos material, check Model Number of Gland Packing and Gasket
on Name Plate, and if it is confirmed as asbestos type, take Gasket and Gland Packing out from Body, then,discard it separately from other metal parts.

40Model 01, 05, 83A, 83, 89

Reference Data
Estimated Life Cycle of Control Valve Parts
Generally, estimated life cycle of Control Valves component parts are shown in following table. Whereas, the lifeof each parts differ by temperature, pressure, frequency or operation and environment in service. It is recommended
to use this table for reference for your consideration. Accordingly, please be noted that estimated life cycle below do
not mean the warranty value by MOTOYAMA. MOTOYAMA general warranty period for Control Valves is one (1)year after shipment.

Estimated Life Cycle of Control Valves Parts
Unit: Years
No.

①
②
③
④

Actuator

Valve Body⑤

Part Name

Life Cycle

Body

10 years

Bonnet10

Bottom Cover

10

Valve Plug

5

Guide, Cage

5

Seat-Ring

5

Notes
Change Body if wall thickness decreased to 90% of
designed value
Change when clearance became ＋0.1mm larger
than design value

Weld Bellows

10,000 cycles

Form Bellows

5,000 cycles

⑥
⑦
⑧
⑨
⑩
⑪
⑫
⑬
⑭
⑮
⑯
⑰
⑱
⑲-1
⑲-2

Valve Stem

5

Guide Bushing

5

Gland Flange

10Stud Bolt

5

Same for Nut

Gland Bolt

5

Same for Nut

York Bolt, York Nut

10

Gasket2

Change on every overhaul

Wiper

5

Change when any damage or scratch found

Gland Bushing

10

Gland Packing

2Lantern Ring

10

Packing Ring

10

Yoke

10

Diaphragm Case

10

Diaphragm Cover

10

⑳
⑪
⑳
⑫
⑳
⑳
⑬
⑭
⑳
⑳
⑮
⑳
⑯
⑰
⑳
⑳
⑱
⑳
⑲

Diaphragm Stem

10

Diaphragm Plate

10

Diaphragm Rubber

10

Change when any damage foundSpring10Same as above

Spring Seat

10

Adjustment Screw

5

Adjustment Guide

5

Daistat , Daisthread

Same for Valve Plug

Change on every overhaul

5

Seat Bearing®

However, under the conditions without corrosion inambient temperature®

Dust Seal, O-Ring, Seal-Packing

5

Change on every overhaul

5Same as above

41

Model 01, 05, 83A, 83, 89
Control Valve Parts Name and ConstructioParts Number on below sketch is the Number of the Table “Estimated Life Cycle of Control Valve Parts”, page 41.
【Note】Some parts for reveres action type are not shown on the sketch. See page 12, 13, 16, 17 and 20 for details.

Model 3889 Single Seated, Top Guide Control Valve

Direction of
Fluid Flow

This manual is supplied for information purpose only and should not be considered certified marketability andconformability of this product.

42

Bulletin No.MIE-B3001P

http://www.motoyama-cp.co.jp
本 社 工 場

Main Office & Factory

TEL（022）344-4511（代表） / FAX（022）344-4522
E-mail : info@motoyama-cp.co.jp
5-2, Ohira Aza Kameoka, Ohira-mura, Kurokawa-gun, Miyagi, 981-3697, Japan
TEL +81-22-344-4511 / FAX +81-22-344-4522
E-mail : info-overseas@motoyama-cp.co.jp〒981-3697 宮城県黒川郡大衡村大衡字亀岡５－２●販売・サービスネットワーク

東

京

支

店

〒210-0007 神奈川県川崎市川崎区駅前本町 10-5 クリエ川崎 11F

TEL（044）381-8770（代表） FAX（044）381-8772

大

阪

支

店

〒550-0014 大阪市西区北堀江 1 丁目 12-19 クリモトビル 3F

TEL（06）6535-8111（代表） FAX（06）6535-8655

国

際

営

業

部

〒210-0007 神奈川県川崎市川崎区駅前本町 10-5 クリエ川崎 11F

TEL（044）381-8771

FAX（044）381-8773

札

幌

営

業

所

〒001-0912 札幌市北区新琴似12条7丁目1-47
リバティタウンP棟101号

TEL（011）766-1520

FAX（011）766-1521

東

北

営

業

所

〒981-3697 宮城県黒川郡大衡村大衡字亀岡 5-2

TEL（022）344-1761

FAX（022）344-1762

上

越

営

業

所

〒942-0036 新潟県上越市大字東中島2393番地

TEL（025）542-5151

FAX（025）542-5152

関

東

営

業

所

〒290-0046 千葉県市原市岩崎西1丁目5-19

TEL（0436）21-4400

FAX（0436）21-3540

静

岡

営

業

所

〒422-8033 静岡市駿河区登呂4丁目28-5

TEL（054）269-5377

FAX（054）237-5855

名 古 屋 営 業 所〒481-0012 愛知県北名古屋市久地野安田36番地

TEL（0568）26-6681

FAX（0568）26-6631

水〒481-0012 岡山県倉敷市二日市358

TEL（086）486-3381

FAX（086）486-3382

阪 神 サー ビ スセンター〒560-0894 大阪府豊中市勝部2丁目18-3

TEL（06）6854-7511

FAX（06）6854-7512

姫

路

出

張

所

〒672-8014 兵庫県姫路市東山276番地1

TEL（079）263-8640

FAX（079）246-2130

徳

山

営

業

所

〒745-0861 山口県周南市新地1丁目6-11

TEL（0834）21-5012

FAX（0834）31-0450

四

国

営

業

所

〒792-0896 愛媛県新居浜市阿島1丁目6-26

TEL（0897）47-8993

FAX（0897）47-8995

大

分

営

業

所

〒870-0108 大分市大字三佐字山ノ神980-1

TEL（097）527-3704

FAX（097）522-2352

TEL +86-411-6589-1277

FAX +86-411-6589-1278

大 衡 サービスセンター
上 越 サービスセンター
千 葉 サービスセンター

中 部 サービスセンター

島

営

業

所

周 南 サービスセンター
新 居 浜 サービスセンター
大 分 サービスセンター●海外関連会社本山阀门（大連）有限公司 〒116601 中国 遼寧省大連市金州新区港興大街 39 号 14-7
●海外販売代理店

中国、韓国、台湾、シンガポール、インドネシア、マレーシア、サウジアラビア●SALES AND SUPPORT NETWORK

Overseas Marketing & Sales Dept. : 11th Floor, Clie Kawasaki, 10-5, Ekimae-honcho, Kawasaki-ku, Kawasaki-city, Kanagawa, 210-0007 Japan
TEL: +81-44-381-8771
FAX : +81-44-381-8773
Domestic Sales Branches : Tokyo, Osaka, Sapporo, Tohoku, Joetsu, Kanto, Shizuoka, Nagoya, Hanshin, Tokuyama, Shikoku, Oita

●OVERSEAS AFFILIATED COMPANY

MOTOYAMA VALVE （DALIAN） CO., LTD
Gangxing Street 39-14-7, Jinzhou New District, Dalian-city, 116601 China

TEL: +86-411-6589-1277

FAX: +86-411-6589-1278●OVERSEAS NETWORK

China, Korea, Taiwan, Singapore, Indonesia, Malaysia, Saudi Arabia◆当社は保証期間を原則として製品納入後１年としています。
◆The product will be warranted for one year after delivering this product in principle.
■本取扱説明書の記載内容は、商品の改良等のため予告なく変更することがありますので予めご了承下さい。
■MOTOYAMA is continuously improving and upgrading its product design, specifications and/or dimensions. Information included herein issubject to change without notice.

■本取扱説明書は正しい情報の提供を目的としたものであり、本製品の市場性または適合性の保証を証明するものではありません。
■This instruction manual is supplied for information purpose only and should not be considered certified marketability and conformabilityof this product.

202402 MSP