Typ 2012, 2702, 2712

Spare parts
Ersatzteile
Pièces de rechange

Operating Instructions
Bedienungsanleitung
Instructions de ServiceWe reserve the right to make technical changes without notice.
Technische Änderungen vorbehalten.
Sous resérve de modification techniques.
© Bürkert Werke GmbH & Co. KG, 2004 - 2021
Operating Instructions 2112/24_EU-ML_00804495 / Original DE

Contents
Symbols ...........................................................................................3
Safety notes ....................................................................................4
Contact addresses..........................................................................4
Warranty conditions .......................................................................4Overview of types ...........................................................................5
Spare parts sets for standard valves ...........................................6
Exchange of spare parts .............................................................10		 Disassembly ............................................................................10		

Replacing the valve seat ........................................................11		

Assembly tools .......................................................................12		

Replacing the control cone ......................................................................................... 13		Turning the actuator ............................................................................................................ 14Symbols
The following symbols are used in these operating instructions:		

marks a work step that you must carry out
ATTENTION!

NOTES

marks notes on whose non-observance your health or thefunctioning of the device will be endangered.

marks important additional information, tips andrecommendations

EA 2012, 2702, 2712 - 3

englishSPARE PARTS FOR TYPES
2012, 2702, 2712

Safety notes

englishTo ensure serviceability and a long service life, please comply with theinformation in these operating instructions, also the operating conditions andpermissible data specified in the datasheets for the utilized components:•Keep to standard engineering rules in planning the use of and operating thedevice!

•Installation and maintenance work are only allowed by specialist personnel
using suitable tools!

•Observe the current regulations on accident prevention and safety forelectrical devices during operation and maintenance of the device!

•

Switch off the supply voltage in all cases before intervening in the system!

•

Note that in systems under pressure, piping and valves may not beloosened!

•Take suitable precautions to prevent inadvertent operation or damage byunauthorized action!

•On non-observance to these notes and unauthorized interference with thedevice, we will refuse all liability and the warranty on device and accessories
will become void!

Contact adresses
Germany

Bürkert Fluid Control Systems
Sales Center
Christian-Bürkert-Str. 13 - 17
D-74653 IngelfingenTel.: +49 (0)7940/ 10 91 111+49 (0)7940/ 10 91 448
E-mail: info@de.buerkert.com
InternationalContact addresses can be found on the final pages of these printed operating instructions.
And also on the internet at: www.burkert.com

Warranty conditions
A prerequisite for validity of the warranty is use of the devices as intended with observanceof the specified conditions of use.
ATTENTION!

The guarantee only covers the serviceability of thedelivered components. No liability is accepted for any kind of
secondary damage which can occur through the failure or
malfunction of the components.

4 - EA 2012, 2702, 2712

Overview of types
Actuator
lower
control port
Threaded nipple
HousingType 2712
Piston controlled flat-seat
control valve
Actuator size 175 and 225 mm,
Nominal sizes DN65, DN80, DN100

Type 2012
Piston controlled flat-seat valve
Actuator sizes 175 and 225 mm,
Nominal diameters
DN 65, DN 80, DN 100
TopControl
Actuator
lower
control port
Screw(SW65)
Threadednipple(SW70)
HousingType 2702
Piston controlled Y control valve
Actuator sizes 80 - 125 mm,
Nominal diameters DN 13 - DN 65

Type 2712
Piston controlled flat-seat
control valve
Actuator sizes 80 - 125 mm,
Nominal diameters DN 10 - DN 65
TopControl
Actuator
lower
control port
ThreadednippleHousing

EA 2012, 2702, 2712 - 5

englishType 2012
Piston controlled flat-seat valve
Actuator sizes 40 - 125 mm,
Nominal diameters DN 10 - DN 100

Spare parts sets for standard valves
NOTE

Spare parts sets for special versions are available on request (e.
g. oxygen, analysis versions, etc.)

englishOn installation of a valve seat with a different nominal diameter,
the order number for the valve changes.
ATTENTION!

ATTENTION!

Before removal or opening of the device, be sure to interrupt
the supply of medium and relieve the pressure in the piping.
Open piston actuator carefully – risk of accident from tensionedsprings.

Set of seals for PPS actuator
High temperature version
Actuator size/Nom. diameterØ 40 / DN10, 15, 20, 25

Set of seals for PA actuator
Standard version

Order no.
233 581

Actuator size/Nom. diameter

Order no.

Ø 40 / DN10, 15, 20, 25

233 587

Ø 50 / DN10, 15, 20, 25233 588

Ø 63 / DN25 - 50

233 591

Ø 50 / DN10, 15, 20, 25233 582

Ø 63 / DN25 – 50

233 583

Ø 80 / DN25 - 65

233 593

233 584

Ø 100 / DN32 - 65

233 594Ø 125 / DN40 - 65

233 596

Ø 80 / DN25 - 65
Ø 100 / DN32 - 65

233 585

Ø 125 / DN80 - 100276 132

Ø 125 / DN40 - 65

233 586

Ø 175 / DN65 - 100

168 501Ø 125 / DN80 - 100

276 130

Ø 225 / DN65 - 100

168 500

Conversion set
Actuator

SFA to SFB
or SFI

Flow direction below seat toflow direction above seat

Flow direction above seatto flow direction below seatØ 50

012 090011 985012 016

Ø 63

011 946012 124012 023

Ø 80

011 955012 005

012 029

Ø 100

011 957

Remove outer spring

012 071

Ø 100 (R)276 318

Remove outer spring

012 071Ø 125

011 964

Remove outer spring

012 086

Ø 125 (R)276 319

Remove outer spring

012 086

6 - EA 2012, 2702, 2712

Swivel plate set

Trim kit (Swivel plate set + seat)(PTFE seal material)

DN

Order no. for
Order no. for valve
swivel plate set
set plus seat

Actuator size

Nominaldiameter

Order no.

10/15

149 606

149 608

175

DN 65

155 491

20011 171149 864

175, 225

DN 80

155 492

25*011 202

161 376

175, 225

DN 100155 49325**

160 737

149 786

32011 208

149 787

40011 209

149 78850233 813

237 39065

233 815237 391

Swivel plate set containing: pendulum disk,
pin, graphite seal
Trim kit containing: pendulum disk, pin, graphite seal and seat
For assembly tools, see under "Replacing
the valve seat"

Containing: pendulum disk, pin, graphite seal

Set of seals, packed gland
Actuator size

Nominaldiameter

Order no.

175

DN 65

353 575

175, 225

DN 80

353 575

175, 225

DN 100353 575

Containing: packed gland module, graphite
seals* Actuator size Ø 50** Actuator size Ø 63,80

Trim kit (Swivel plate set + seat)(PTFE seal material)
Actuator size

Plug set

Nominaldiameter

Order no.

175

DN 65

155 487

175, 225

DN 80

155 48815175, 225

DN 100155 489

Containing: pendulum disk, pin, graphite seal,seat
For assembly tools, see under "Replacing thevalve seat"

Steel/
Steel

PTFE/
Steel

Order no.

Order no.

170 322170 315

20170 323

170 31625

170 324

170 31832

170 325

170 31940

170 326

170 32050

170 327

170 32165

171 093

171 092

DN

Containing: plug, dowel pin, graphite seal,lubricant

EA 2012, 2702, 2712 - 7

englishSwivel plate set (PTFE seal material)

Valve seat set

englishPlug set
DN

DN

Steel/
SteelPTFE/
Steel

DN
Housing

DN

Order no.

Housing

Seat

Order no.

Order no.

10, 154262 143

149 934

10, 156262 146

6152 696

10, 158262 147

10, 158149 935

149 962

10, 1510262 149

10, 1510149 912

149 963

2010262 151

2010149 914

149 9651515262 152

1515

149 915149 94320

15262 153

20

15149 916

149 9442515262 155

2515149 917

149 9452020262 157

2020149 918

149 9462520262 160

2520149 951

149 94732

20262 16332

20149 952

149 9482525262 170

2525149 953

149 94932

25262 17132

25149 954

149 9504025262 173

4025149 955

150 001

32

32262 17432

32149 956

150 00240

32149 957

150 00350

32149 958

150 00440

40

149 959

150 00650

40149 960

150 00750

50

149 961

150 00865

40155 624

155 63665

50155 626

155 63865

65

155 629

155 641

10, 1510, 154Contains: Plug, dowel pin, graphite seal,lubricant

8 - EA 2012, 2702, 2712

4032262 17550

32262 176

4040262 177

5040262 178

5050262 179

6540262 202

6550262 20365

65

262 204

Contains: Valve seat, O-Ring (dependingon version), graphite seal, lubricant

Sealing part set (packed gland)DNhousing

Order no.

Contains:

65353 575

housing seals

80353 575

100353 575

englishpacked gland module,

Plug set
DN
housing
65

DN
seat

Actuator
size

40

Ø175

Steel/Steel

PTFE/Steel

Order no.

Order no.

155 625

155 637

65

50

Ø175

155 627

155 639

65

65

Ø175

155 630

155 642

80

50

Ø225

155 628

155 640

80

65

Ø225

155 631155 643

80

80

Ø225

155 633

155 645

100

65

Ø225

155 632

155 644

100

80

Ø225

155 634

155 646

100

100

Ø225

155 635

155 647

Contains:
Plug, dowel pin,graphite sealValve seat set
DNhousing

DNseatOrder no.

6540262 20265

50

262 20365

65

262 2048050262 205

8065262 20680

80

262 207100

65

262 208100

80

262 209100

100

262 210

Contains:
Valve set,O-Ring,
Graphite seal

EA 2012, 2702, 2712 - 9

Exchanging spare parts
Disassembly

englishType2012

2702

2712

Actuator mm

40 - 125

175, 225

80 - 125

80 - 125

175, 225

DN mm

10 - 100

65 - 100

15 - 65

10 - 65

65 - 100

AAA

B

A

B

A

B

X

X

X

X

X

X

X

X

X

X

X

X

Control function

B, I

B, I

Remove the electrical andpneumatic supplies from theTopControl
Remove pneumatic supply
and electrical connection if
pilot valve is attachedXXXX

Pull off the pneumatic hose
between TopControl andactuator at control port ofactuator
Pressurize the lower control
port of the actuator withcompressed air 1)

6 bar

Do not apply compressed air
Remove the actuator in theopen valve position byunscrewing the threaded
nipple from the housing
Attention! Do not loosenscrew (SW65) above
threaded nipple!

6 bar
XXX

6 bar
XX 2)

X 2)

XX1)

The control cone lifts from the valve seat and is not damaged.

2)

Threaded nipple SW70

10 - EA 2012, 2702, 2712

6 bar
XXX

6 bar
XXXXX 2)

X 2)

XX

Replacing the valve seat
2012

2712

Actuator mm

40 - 125

175, 225

80 - 125

175, 225

DN mm

10 - 100

65 - 100

10 - 65

65 - 100

Unscrew the old seat using the assembly
tool and a spannerX

Clean thread and sealing surface in thehousing with compressed airX

Select a tool insert and screw it into theassembly toolX

Push the new seat onto the assembly toolX

Lubricate with high temperature resistantlubricant, e.g. Klüberpaste UH1 96-402 3)

XPlace the attached seat by hand into thehousing thread and screw it inX

Tighten the seat with a torque wrench tothe torque specified 4)

X

Assemble in the reverse order to that
described for disassemblyX3)

4)

ATTENTION!

For special applications such as for oxygen andanalysis, use only the approved lubricants.

Torques:

Connection

TorqueSeat
DN

Housing
DN

Uncoatedseat

Coated
seat

4 -15

15

25

2020

20

35

28

25

25

50

32

32

40

40

NOTE

Tolerance

Connection

TorqueTolerance

Seat
DN

HousingDN

Uncoatedseat

Coatedseat+35050

120

120+8+365

65

150

150+ 1040+58080

180

180+ 1080

65+5100

100

220

220+ 10100

85+8On installation of a valve seat with a different nominal
diameter, the order number for the valve changes.
EA 2012, 2702, 2712 - 11

englishTypeAssembly tools

englishAssembly tools forvalve set plus seat
DN

Order no.

10/15652 604

20652 605

25652 606

32652 607

40652 608

50652 609

65655 562

80655 563

100655 564

Assembly tool

Tool insert(depending onnominal
diameter ofseat)
Valve seat

Assembly tools forvalve set plus seat
Actuator size

DN

Order no.

175

65653 562

175, 225

80653 563

175, 225100

653 564

Assembly tools

Assembly tools

DN

Order no.

DN

Order no.

15652 604

65655 562

652 60580

655 56325652 606100

655 564

32652 607

40652 608

50652 609

2012 - EA 2012, 2702, 2712

Replacing the control cone

Actuator mm
DN mm

2702

all

2712

80 - 125

175, 225

10 - 65

65 - 100

Knock out the dowel pin with a suitable driver 5)

XXX

Clamp two equally long metal bars to the left and right ofthe spindle between control cone and threaded nipple ofactuator

XX

X

Apply compressed air to the lower control port of actuator

6 bar

6 bar

6 bar

Pull off control cone with the aid of the metal bars

XX

X

Push the new control cone over the end of the spindle
Attention! Do not damage the sealing surface or thecontrol contour!

XX

X

Align the bores

X

X

X

Support the control cone at its cylindrical part with the aidof a V-block or the like

X

X

X

Position dowel pin

X

X

X

Carefully knock the dowel pin into the bore with ahammer

XX

X

Bring the dowel pin into a central position relative to thespindle axis

XX

X

Knock in the dowel pin up to the of the recess

X

XX

Tighten threaded nipple
Observe torque! 6)

XX

XX 7)

X 7)

X 7)

Grease the thread with high temperature resistantlubricant, e. g. Klüberpaste UH1 96-402
Attention! Valve must be open
Replace graphite seal if necesarry

X

Assemble the actuator in the reserve order to that
described for disassembly5)

6)

Diameter of driver		

Xup to DN 254 mm

DN 32 - DN 65

5 mm

DN 65 - DN 1008 mm

XX

For tightening torques for threaded nipple (SW 70), see the following page7)		

ATTENTION!

For special applications such as for oxygen andanalysis, use only the approved lubricants.
EA 2012, 2702, 2712 - 13

englishTypeenglish

Tightening torques for threaded nipple (SW 70)
DN

Tightening torque
[Nm]

65

100 ±580

120 ±5100

150 ±5Control coneControl coneControl cone
Dowel pin

Control cone

Dowel pin

Turning the actuator
TypeActuator mm
DN mm

2702all2712

80 - 125

175, 22510 - 65

65 - 100

Unscrew the screw (SW65) above threaded
nipple by ca. half a turnBring actuator into the desired position
Attention! Valve must be open
Tighten screw with 100 ± 5 Nm

14 - EA 2012, 2702, 2712

XX

XXX

www.burkert.com