EB 8546-2 EN
Translation of original instructions

SAMSTATION Type 7029 Supply Pressure Regulator

Edition February 2019

Note on these mounting and operating instructions
These mounting and operating instructions assist you in mounting and operating the device
safely. The instructions are binding for handling SAMSON devices.
Î For the safe and proper use of these instructions, read them carefully and keep them forlater reference.
Î If you have any questions about these instructions, contact SAMSON‘s After-sales ServiceDepartment (aftersalesservice@samson.de).

The mounting and operating instructions for the devices are included inthe scope of delivery. The latest documentation is available on our website
at www.samson.de > Service & Support > Downloads > Documentation.

Definition of signal words! DANGER
Hazardous situations which, if not avoided,
will result in death or serious injury! WARNING
Hazardous situations which, if not avoided,
could result in death or serious injury

2! NOTICE
Property damage message or malfunction
Note
Additional information
Tip
Recommended action

EB 8546-2 ENContents

1

Safety instructions and safety measures..........................................................51.1

Notes on possible personal injury....................................................................71.2

Notes on possible property damage.................................................................72

Markings on the device..................................................................................82.1

Article code....................................................................................................82.2

Nameplate.....................................................................................................93

Design and principle of operation.................................................................103.1

Technical data..............................................................................................123.2

Accessories..................................................................................................133.3Spare parts..................................................................................................133.4

Dimensions in mm.........................................................................................144Installing the supply pressure regulator.........................................................164.1

Pneumatic connections..................................................................................164.2

Direction of flow...........................................................................................165Set point adjustment.....................................................................................176Maintenance................................................................................................187Troubleshooting...........................................................................................19EB 8546-2 EN3

4EB 8546-2 EN

Safety instructions and safety measures

1 Safety instructions and safety measures
Intended use
The SAMSTATION Type 7029 Supply Pressure Regulator reduces and controls the pressure ofa compressed air network (max. 12 bar/180 psi) to the pressure adjusted at the set point
adjuster. The device is designed to operate under exactly defined conditions (e.g. operatingpressure, temperature). Therefore, operators must ensure that the supply pressure regulator isonly used in applications where the operating conditions correspond to the technical data. Incase operators intend to use the supply pressure regulator in other applications or conditions
than specified, contact SAMSON.
SAMSON does not assume any liability for damage resulting from the failure to use the device for its intended purpose or for damage caused by external forces or any other externalfactors.
Î Refer to the technical data for limits and fields of application as well as possible uses.
Reasonably foreseeable misuse
The SAMSTATION Type 7029 Supply Pressure Regulator is not suitable for the following applications:− Use outside the limits defined during sizing and in the technical data
Furthermore, the following activities do not comply with the intended use:
− Use of non-original spare parts− Performing maintenance activities not specified by SAMSON
Qualifications of operating personnel
The supply pressure regulator must be mounted, started up and serviced by fully trained andqualified personnel only; the accepted industry codes and practices are to be observed. According to these mounting and operating instructions, trained personnel refers to individuals
who are able to judge the work they are assigned to and recognize possible hazards due totheir specialized training, their knowledge and experience as well as their knowledge of theapplicable standards.

EB 8546-2 EN

5

Safety instructions and safety measures

Personal protective equipment
No personal protective equipment is required for the direct handling of the supply pressure
regulator. Work on the control valve may be necessary when mounting or removing thedevice.
Î Observe the requirements for personal protective equipment specified in the valve documentation.
Î Check with the plant operator for details on further protective equipment.
Revisions and other modifications
Revisions, conversions or other modifications of the product are not authorized by SAMSON.
They are performed at the user's own risk and may lead to safety hazards, for example.
Furthermore, the product may no longer meet the requirements for its intended use.
Warning against residual hazards
To avoid personal injury or property damage, plant operators and operating personnel must
prevent hazards that could be caused in the pneumatic instrumentation by the signal pressure
or by moving parts by taking appropriate precautions. They must observe all hazard statements, warning and caution notes in these mounting and operating instructions, especiallyfor installation, start-up and service work.
Responsibilities of the operator
The operator is responsible for proper operation and compliance with the safety regulations.
Operators are obliged to provide these mounting and operating instructions to the operating
personnel and to instruct them in proper operation. Furthermore, the operator must ensurethat operating personnel or third persons are not exposed to any danger.
Responsibilities of operating personnel
Operating personnel must read and understand these mounting and operating instructions aswell as the specified hazard statements, warning and caution notes. Furthermore, the operating personnel must be familiar with the applicable health, safety and accident prevention
regulations and comply with them.
Referenced documentation
The following documents apply in addition to these mounting and operating instructions:− The mounting and operating instructions of the components on which the supply pressure
regulator is mounted (valve, actuator, positioner etc.).

6EB 8546-2 ENSafety instructions and safety measures

1.1 Notes on possible personal injury! WARNING
Risk of injury due to high pressure.
Î Shut off the air line before performing work on the supply pressure regulator.

1.2 Notes on possible property damage! NOTICE
Risk of damage to the supply pressure regulator due to excessively high tighteningtorque.
Î Do not exceed the maximum permissible torques specified in these mounting andoperating instructions.

EB 8546-2 EN7

Markings on the device

2 Markings on the device
2.1 Article code
SAMSTATION Supply PressureRegulator

Type 7029- xxxx01xxxxxxx

00x0Version
Aluminum connecting part, plastic body

1Connecting thread
G¼0¼-18 NPT

2Set point range
0.5 to 6.0 bar
Pressure gauge
Without0

1 pressure gauge, 0 to 6 bar, plastic body

2Material
Aluminum connecting part, plastic body

0Filter
20 µm

15 µm

2

Temperature range–20 to +60 °C

2Filter receptacle
With transparent filter housing

0With stopper

1Special version
WithoutPackaging
Without packaging

80EB 8546-2 ENMarkings on the device

2.2 Nameplate
ACHTUNG!
Innerhalb explosionsgefährdeter Bereiche
ist das Gerät so zu errichten und zuwarten, dass nicht mit elektrostatischer
Aufladung zu rechnen ist.
WARNING!
In explosive areas install and service
the device in such a way to avoid any
electrostatic charging.
ATTENTION!
En zone explosible, le montage etl‘entretien de l‘appareil doivent êtreeffectués de manière à éviter tout
danger de charge électrostatique.

SAMSTATION

Var.-ID
2

P max. 12 bar
1234
5

1

bar 3-34. 5
Made in France

Configuration ID
Set point range
Serial numberDate (month) of manufacture
Date (year) of manufacture

EB 8546-2 EN9

Design and principle of operation

3 Design and principle of operation
The supply pressure regulator is used toprovide pneumatic measuring and control
equipment with a constant supply pressure.
The maximum 12 bar pressure of thecompressed air network in a plant is reduced
to an adjustable minimum pressure of 0.5 to6 bar.
The supply pressure regulator operates
according to the force-balance principle. Byturning the set point screw (9), the tension of
the set point spring (8) is changed and theoutput pressure is adjusted accordingly.

The supply pressure regulator contains afilter cartridge (11). The condensate isdrained by opening the screw lid (13) byhalf a turn.
The manual drain (12) of versions with separate filter receptacle (14) can be activated todrain condensed water.
Note
The filter cartridge can be replaced (seespare parts in section 3.3).

324679111581051

Legend: see Fig. 213Fig. 1: Design of Type 7029

10EB 8546-2 ENDesign and principle of operation

Version without pressure gauge
and without filter receptacleVersion with pressure gauge
and with filter receptacle
22161720

1918
21

10691113123456789101112131415
161718
1920
21
2211

Body
SeatPlug
Plate
Diaphragm
CoverCentering bushing
Set point springSet point screw
Lock nut
Filter cartridge
Condensate drain
Screw lid
Filter receptacle
Seal
Stopper
Input
OutputFormed seal
Fastening bore
Connecting plate
Pressure gauge

1412Fig. 2: Design and versions of Type 7029

EB 8546-2 EN11

Design and principle of operation

3.1 Technical data
Table 1: Technical data
Type 7029 Supply Pressure Regulator
Supply pressure

1 to 12 bar (15 to 180 psi)

1)

Set point range

0.5 to 6 bar (8 to 90 psi)

Air consumption≤0.1 mn³/h (with 7 bar supply air)

Air output

Refer to Fig. 3

Permissible ambient temperature–20 to +60 °C

Dependency on inlet pressure<150 mbar/Δp = 1 bar

Reversing error

100 to 400 mbar (depending on set point)

Hysteresis<100 mbar

Filter cartridge mesh size

20 µm (optionally 5 µm)

Connection

G ¼ or ¼-18 NPT

Pressure gauge
Indicating range

0 to 6 bar (0 to 90 psi)

Connection

G 1/8

Degree of protection

IP 53 2)

WeightApprox.
1)
2)

320 to 425 g (depending on version)

Recommendation: min. 1.0 bar (15 psi) above the adjusted set point
If a higher degree of protection is required due to the ambient conditions, use Type 4708 Supply
Pressure Regulator (u EB 8546)
Set point
P[bar]

6Adjustment ranges:

50.5-6.0 bar
0.2-1.6 bar

432
10

Q
0

12

3

4

5

67

8910 [mn3/h]

Fig. 3: SAMSTATION, air flow characteristics with 8 bar supply pressure, measured with ¼”
connection

12EB 8546-2 ENDesign and principle of operation

Table 2: Materials
Connecting plate

Aluminum

Cover, body, filter stopper

PA glass fiber reinforced

Plug

PA glass fiber reinforced and POM

Plug lip seal

PVMQ

Screw (plug)

Nickel-plated steel

O-rings

PVMQ

Diaphragm

NBR

Diaphragm plate

PAScrews

A4

Set point spring

1.4310Filter receptacle

UV-resistant PA

Filter cartridgePE

3.2 Accessories
Accessories

Order no.

20 caps to cover the set point screw

1402-1165

Bracket for mounting onto a Type 3271/3277 Actuator1400-7343

3.3 Spare parts
Accessories

Order no.

Filter cartridge 20 µm

8504-9027

Filter cartridge 5 µm

8504-9030

EB 8546-2 EN13

Design and principle of operation

3.4 Dimensions in mm

41~110

50

1429

132

192

112

Cap (optional)

50

14

EB 8546-2 ENDesign and principle of operation~110

103

113

50

1441

40

112

Cap (optional)

50

EB 8546-2 EN

15

Installing the supply pressure regulator

4 Installing the supply pressure
regulator
Install the device directly in the pipe of theair supply. The supply pressure regulator canbe attached to a rail or bracket using the twofastening bores (see Fig. 4).
Î Observe the flow direction. An arrow
indicates the direction.
Î To prevent excessive amounts ofcondensed water from collecting, keep
the distance between the compressor andsupply pressure regulator as short aspossible.
Î Make sure the drain plug faces downwards in versions with a filter receptacle.

4.1 Pneumatic connections
The air connections are designed either withG ¼ or ¼-18 NPT threads according toISO 228. The connecting thread of the pressure gauge is designed as a G 1/8 thread.

4.2 Direction of flow

Fig. 4: Mounting the supply pressure
regulator/turning the formed seal

Depending on how the device is installed in
the pipeline, it may be necessary to change
the direction of flow.
In this case, the formed seal between theconnecting plate and the supply pressure
regulator must be turned (disassembly according to Fig. 4). The seal's protruding tip
points towards the outlet side.
Î Use the enclosed adhesive label to indicate the new flow direction.

16

EB 8546-2 ENSet point adjustment

5 Set point adjustment
Î Refer to Fig. 5Î Unscrew the cap (15), if used.
Î Adjust the set point of the supply pressure regulator at the set point screw (13).
Î Turning the screw clockwise increases theoutput pressure and turning it counterclockwise reduces the output pressure.
Î Lock the setting with the lock nut (12).
! NOTICE
Risk of damage to the supply pressure regulator due to excessive tightening of the locknut.
Do not exceed the maximum torque of7 Nm.

15

13

12

12 Lock nut
13 Set point screw
15 CapFig. 5: Set point adjustment

EB 8546-2 EN17

Maintenance

6 Maintenance! WARNING
Risk of injury due to high pressure.
Shut off the air line before performing workon the supply pressure regulator.
Tip
We recommend checking the filter regularly
and to renew the filter cartridge (dependingon the degree of contamination in the plant).
Drain condensed water that has collected:
Î Activate the manual drain (12, Fig. 2).
Î Do not allow too much condensed waterto accumulate so that it gets into the filter
cartridge.
Replacing the filter cartridge:
When the flow rate decreases (higher dropin output pressure), the filter cartridge needs
to be replaced with a new one (see section 3.3).

18EB 8546-2 ENTroubleshooting

7 Troubleshooting! WARNING
Risk of injury due to high pressure.
Shut off the air line before performing workon the supply pressure regulator.
Leakage between supply pressure regulator
and pneumatic connections:Î Check the pipe fittings are fitted properly.
Leakage between supply pressure regulator
and filter receptacle or screw lid:
Î Ensure the filter receptacle or screw lid isscrewed on properly.
Leakage at the condensate drain of thefilter receptacle.
Î Check the drain for dirt and clean it, ifnecessary.
Leakage between connecting plate andsupply pressure regulator:
Î Ensure the formed seal is seated correctly
and check it for damage.
Air capacity drops and the output pressure
drops:
Î Check the filter cartridge for dirt andmake sure the set point is correctly adjusted.
Pressure dropÎ Unscrew the filter receptacle and renew
the filter cartridge (see section 6/3.3).

EB 8546-2 EN

19

SAMSON AKTIENGESELLSCHAFT
Weismüllerstraße 3 · 60314 Frankfurt am Main, GermanyPhone: +49 69 4009-0 · Fax: +49 69 4009-1507
samson@samson.de · www.samson.de

2020-02-24 · English

EB 8546-2 EN