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EB 2522 EN 

 23

Mounting and start-up

5.2  Quick check

Pressure test

A pressure test of the plant with the regulator 
already installed is only permissible up to the 

nominal pressure of the valve (see Table 1). 

The pressure at the operating diaphragm 

must not exceed the maximum permissible 

pressure. If this cannot be guaranteed, pro-
ceed as follows: unscrew the control line at 
the actuator and seal the open control line.
All plant components must be designed for 
the test pressure.

5.3  Putting the regulator into 

operation

1.  Make sure the control line is correctly 

connected and free of dirt. The cross-sec-

tional area of flow must be open.

2.  Slowly open the shut-off valves on the 

upstream pressure side.

3.  Open all the valves on the consumer side 

(downstream of the regulator). Avoid 
pressure surges.

5.4  Adjust set point

The regulator in the delivered state does not 

have a defined pressure set point. The set 

point spring is released of tension. The set 
point must be adjusted on starting up the 
plant.

Adjusting screw 

(8), SW 27

Fig. 10: 

Set point adjustment (view from 

above)

Adjust the required set point (see Fig. 10) by 

tensioning the set point springs (7) at the set 
point adjuster (8) using a suitable socket 

wrench (width across flats 27).

1.  Remove the cap (12).
2. 

Use a socket wrench (SW 27) to turn the 

screw (8).

Turn clockwise (

) to increase the pres-

sure set point (the upstream pressure in-
creases).

Turn counterclockwise (

) to reduce the 

pressure set point (the upstream pressure 
drops).

Incorrect control due to a set point adjuster 

being turned too far.

If the set point adjuster is turned too far, the 
regulator becomes blocked and closed-loop 
control is no longer possible.
Only screw the set point adjuster up to the 
point where the spring tension can still be 
felt.

3.  Remount the cap (12).

NOTICE

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Summary of Contents for 2406

Page 1: ...Translation of original instructions EB 2522 EN Type 2406 Excess Pressure Valve Self operated Pressure Regulators Edition October 2021...

Page 2: ...st you in mounting and operating the device safely The instructions are binding for handling SAMSON devices The images shown in these instructions are for illustration purposes only The actual product...

Page 3: ...Storage 19 4 4 Preparation for installation 19 5 Mounting and start up 20 5 1 Installing the valve into the pipeline 20 5 1 1 Installation conditions 20 5 1 2 Mounting orientation 21 5 1 3 Additional...

Page 4: ...age caused by external forces or any other external factors Refer to the technical data and nameplate for limits and fields of application as well as possible uses Reasonably foreseeable misuse The re...

Page 5: ...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 regulator by the pro...

Page 6: ...and regulations The devices comply with the requirements of the European Pressure Equipment Directive 2014 68 EU Devices with a CE marking have an EU declaration of conformity which in cludes informa...

Page 7: ...ions affected as well as the valve Wear personal protective equipment 1 2 Notes on possible personal injury WARNING Risk of personal injury due to residual process medium in the valve While working on...

Page 8: ...e The plant operator is responsible for cleaning the pipelines in the plant Flush the pipelines before start up Risk of valve damage due to unsuitable medium properties The valve is designed for a pro...

Page 9: ...e used depend on the regulator material Unsuitable lubricants may corrode and damage surfaces Only use lubricants approved by SAMSON When in doubt consult SAMSON Risk of regulator damage due to the us...

Page 10: ...Configuration ID 4 Order number or date 5 KVS coefficient 6 Set point range spring force 7 Valve size 8 Pressure rating 9 Permissible differential pressure across the valve 10 Perm temperature 11 Bod...

Page 11: ...an external control line to the control line connection 9 on the actuator housing 6 where it is converted into a posi tioning force by the diaphragm plate with operating diaphragm 5 The diaphragm mov...

Page 12: ...5 Diaphragm plate with operating dia phragm 6 Actuator housing 7 Set point spring 8 Set point adjuster screw SW 27 9 Control line connection G fitting 10 Balancing diaphragm 11 Leakage line connection...

Page 13: ...e class The soft seated regulator has the leakage class IV according to IEC 60534 4 Noise emissions SAMSON is unable to make general state ments about noise emissions The noise emis sions depend on th...

Page 14: ...nimum Class IV Set point ranges 5 to 15 mbar 10 to 30 mbar 25 to 60 mbar 50 to 200 mbar 0 1 to 0 6 bar 0 2 to 1 bar 0 8 to 2 5 bar 2 to 5 bar 4 5 to 10 bar Max permissible pressure at operating diaphr...

Page 15: ...hout balancing 318 366 With balancing 345 370 Actuator D 380 mm A 640 cm 50 to 200 mbar Height H Without balancing 318 366 With balancing 345 370 Actuator D 285 mm A 320 cm 0 1 to 0 6 bar Height H Wit...

Page 16: ...320 cm Control line connection G for A 640 and 1200 cm The control line connection is turned by 90 in the drawing The connection is normally located oppo site the side with the arrow indicating the d...

Page 17: ...lve size DN 15 DN 20 DN 25 DN 32 DN 40 DN 50 Set point range 5 to 15 mbar 28 40 10 to 30 mbar 18 40 25 to 60 mbar 14 30 50 to 200 mbar 14 26 0 1 to 0 6 bar 14 26 0 2 to 1 bar 10 22 0 8 to 2 5 bar 8 20...

Page 18: ...ging from the device 2 Dispose of the packaging in accordance with the valid regulations 4 2 Transporting and lifting Due to the low service weight lifting equip ment is not required to lift and trans...

Page 19: ...spaces prevent con densation If necessary use a drying agent or heating Make sure that the ambient air is free of acids or other corrosive media Observe the permissible ambient tem peratures see sect...

Page 20: ...ith the least amount of vibrations as possible If necessary support the pipe line near to the connecting flanges Do not attach supports directly to the valve or actuator Protect the regulator from ici...

Page 21: ...l fittings Strainers We recommend installing a strainer e g SAMSON Type 2 N upstream of the regula tor It prevents solid particles in the process medium from damaging the valve Install the strainer up...

Page 22: ...tly far away from the control line connection at least 3 x DN Optionally a ready mounted control line is available This option must be specified in the order see Fig 8 Fig 8 Control line Regulator dam...

Page 23: ...surges 5 4 Adjust set point The regulator in the delivered state does not have a defined pressure set point The set point spring is released of tension The set point must be adjusted on starting up t...

Page 24: ...24 EB 2522 EN Mounting and start up The pressure gauge Fig 5 installed on the upstream side on site allows the adjusted set point to be monitored...

Page 25: ...emical burns If possible drain the process medium from all the plant sections affected and the valve Wear protective clothing safety gloves and eye protection DANGER WARNING Risk of burn injuries due...

Page 26: ...process medium 3 Fill in the Declaration on Contamination The declaration form can be download ed from our website at u www samsongroup com SERVICE SUPPORT After sales Service 4 Continue as described...

Page 27: ...ction Pressure fluctuations and vibrations Pressure tapping incorrectly routed Check the pressure tapping of the con trol line see section 5 1 3 on Control line If necessary relocate the point of tapp...

Page 28: ...line Valve components and the pipeline may be come very hot or cold Risk of burn injuries Allow components and pipelines to cool down or warm up to the ambient tempera ture Wear protective clothing an...

Page 29: ...uct catalogs Required specifications Please submit the following details Order number and position number in the order Type model number valve size and valve version Upstream and downstream pressure T...

Page 30: ...160 ohne without 1 H Class 150 ohne without 1 A 2 3 H Class 300 ohne without 1 A 2 3 H Class 600 und Class 900 ohne without 1 H 1 Das auf dem Stellger t aufgebrachte CE Zeichen hat keine G ltigkeit i...

Page 31: ...EB 2522 EN 31...

Page 32: ...2021 10 22 English SAMSON AKTIENGESELLSCHAFT Weism llerstra e 3 60314 Frankfurt am Main Germany Phone 49 69 4009 0 Fax 49 69 4009 1507 samson samsongroup com www samsongroup com EB 2522 EN...

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