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EB 3131 EN

Malfunctions

Table 7:

Troubleshooting

Malfunction

Possible reasons

Recommended action

Flow rate or

differential pressure

exceeds adjusted set

point

Insufficient pressure pulses on the oper

ating diaphragm.

Clean the control line and screw fittings.

Foreign particles blocking the plug

Remove foreign particles.

Replace damaged parts.

Contact SAMSON's After-sales Service.

Seat and plug are worn or leak.

Replace the damaged seat and plug.

Contact SAMSON's After-sales Service.

Valve too large for control task (flow

rate) or too small (differential pressure)

Check the sizing.

Change K

coefficient, if necessary or in

stall a different sized regulator.

Contact SAMSON's After-sales Service.

Defective operating diaphragm

Replace damaged diaphragm.

Seat and plug are worn or leak.

Clean the seat and plug.

Replace the damaged seat and plug.

Contact SAMSON's After-sales Service.

A safety device (e.g. STL or STM) has

been triggered.

Check plant. Unlock safety device (where nec-

essary).

Flow or differential

pressure set point not

reached

Regulator installed against the flow.

Install the regulator so that the direction of flow

matches the direction indicated by the arrow on

the body.

Regulator or K

coefficient too

small

Check the sizing.

Change K

coefficient, if necessary or in

stall a different sized regulator.

Contact SAMSON's After-sales Service.

Incorrect set point range selected.

Check set point range

Contact SAMSON's After-sales Service.

Safety device, e.g. pressure limiter, has

been triggered.

Check plant. If necessary, unlock safety device.

Plant differential pressure Δp too low.

Compare differential pressure in the plant with

the plant’s drag.

Differential pressure across the plant:

∆p

min

= ∆p

restriction

+ (

V/K

)²

Flow or differential

pressure set point not

reached

Foreign particles blocking the plug

Remove foreign particles.

Replace damaged parts.

Contact SAMSON's After-sales Service.

Control line blocked

Clean the control line and screw fittings.

Strainer blocked.

Clean the strainer.

Содержание 46-7

Страница 1: ...f original instructions EB 3131 EN Type 46 7 Type 47 5 Type 47 1 with manual adjuster Types 46 7 47 5 and 47 1 Self operated Regulators Flow and Differential Pressure or Pressure Regulators Edition Se...

Страница 2: ...fter sales Service Department aftersalesservice samson de The mounting and operating instructions for the devices are included in the scope of delivery The latest documentation is available on our web...

Страница 3: ...r preparation 22 4 1 Unpacking 22 4 2 Transporting and lifting 22 4 3 Storage 22 4 4 Preparation for installation 23 5 Mounting and start up 24 5 1 Mounting orientation 24 5 2 Additional fittings 25 5...

Страница 4: ...Contents 4 EB 3131 EN 8 Malfunctions 36 9 Decommissioning and removal 39 9 1 Decommissioning 40 9 2 Disposal 40 10 Annex 40 10 1 After sales service 40 10 2 Certificates 41...

Страница 5: ...ng from the failure to use the de vice for its intended purpose or for damage caused by external forces or any other external factors Refer to the technical data and nameplate for limits and fields of...

Страница 6: ...personnel must observe all hazard statements warning and caution notes in these mounting and operating instructions especially for installation start up and service work We also recommend checking the...

Страница 7: ...nt Directive 2014 68 EU Devices with a CE marking have an EU declaration of conformity which in cludes information about the applied conformity assessment procedure The EU declaration of conformity is...

Страница 8: ...device components bursting Observe the maximum permissible pressure for regulator and plant Before starting any work on the device depressurize all plant sections affected as well as the regulator Dra...

Страница 9: ...way As a result hazards may go unnoticed and the necessary instructions not followed There is a risk of personal injury Keep all relevant markings and inscriptions on the device in a constantly legib...

Страница 10: ...regulator components and pipelines may get very hot or cold and cause burn injuries Allow components and pipelines to cool down or warm up to the ambient tempera ture Wear protective clothing and safe...

Страница 11: ...y Parts that are too loose may cause leakage Observe the tightening torques specified in section 7 3 Incorrect control due to the formation of ice on the regulator Medium temperatures below 0 C may ca...

Страница 12: ...le lubricants may corrode and damage surfaces Only use lubricants approved by SAMSON When in doubt consult SAMSON Risk of regulator damage due to the use of unsuitable tools Certain tools are required...

Страница 13: ...ange in bar or psi 7 Type designation 8 Flow rate set point range in m h or gal min 9 Maximum permissible temperature in C or F 10 Max permissible differential pressure p in bar or psi Fig 1 Nameplate...

Страница 14: ...pressure downstream of the restriction 1 2 is trans mitted through a hole in the plug 3 to the top diaphragm chamber A The high pres sure of V is transmitted through the attached control line 11 to th...

Страница 15: ...7 16 18 V 6 1 6 2 11 13 DN 15 to 32 set point range 0 2 to 0 6 bar and 0 2 to 1 bar with manual adjuster and scale for p set point adjustment Type 47 5 Type 46 7 19 24 8 6 1 23 22 21 20 13 Type 47 1 a...

Страница 16: ...16 EB 3131 EN Design and principle of operation 6 4 6 2 15 11 12 14 8 10 6 3 7 6 1 p2 p1 Type 47 1 Flanged body 25 Fig 3 Type 47 1 Flow and Differential Pressure or Pressure Regulator...

Страница 17: ...remains open to the atmosphere 3 2 Versions Type 46 7 and Type 47 5 Flow and Differ ential Pressure Regulator Designed for the installation in the low pressure pipe e g re turn flow pipe of a district...

Страница 18: ...Differential pressure created at the restriction for measuring the flow rate V Adjusted flow rate in m h KVS Flow coefficient in m h Dimensions in mm Weights in kg The lengths and heights in the dimen...

Страница 19: ...7 and Type 47 1 continuously adjustable 0 2 to 0 6 bar 0 2 to 1 bar 0 5 to 2 bar 0 2 to 0 5 bar 0 2 to 1 bar 0 5 to 2 bar Types 47 5 Fixed set point 0 2 bar 0 3 bar 0 4 bar 0 5 bar 1 Special versions...

Страница 20: ...e thread A G G G 1 G 1 G 1 G 2 Weight approx kg Type 46 7 2 6 2 7 2 8 4 12 12 5 Type 47 1 Type 47 5 2 2 2 3 2 4 3 5 6 2 6 7 With flanges 1 2 or with flanged body DN 32 to 50 L3 130 150 160 180 200 230...

Страница 21: ...elding ends Version with manual adjuster for flow rate set point adjustment Types 46 7 47 1 DN 15 to 32 set point ranges 0 2 to 0 6 and 0 2 to 1 bar with welding ends H1 H G D L3 1 8 The dimensions an...

Страница 22: ...2 Transporting and lifting Due to the low service weight lifting equip ment is not required to lift and transport the regulator e g to install it into the pipeline Transport instructions Protect the...

Страница 23: ...iaphragm To keep elastomers in shape and to pre vent cracking do not bend them or hang them up We recommend a storage temperature of 15 C for elastomers Store elastomers away from lubricants chemicals...

Страница 24: ...egula tor see section 5 2 The direction of flow must match the di rection indicated by the arrow on the body Connect external control lines at the side of the main pipe see Fig 6 Install the regulator...

Страница 25: ...d for longer periods of time Pressure gauge Install a pressure gauge at a suitable point to monitor the pressures prevailing in the plant see Fig 4 Control line Depending on the regulator version a co...

Страница 26: ...flow pipe Risk of valve damage due to a sudden pres sure increase and resulting high flow veloci ties Slowly open the shut off valve in the pipeline during start up NOTICE Pressure testing the plant...

Страница 27: ...ure at the reg ulator see section 6 1 2 Completely open the control and shut off valves or a bypass valve in the plant 1 To fully load the set point spring 8 and manual adjuster 19 turn the set point...

Страница 28: ...ssure 16 Lock nut 17 Set point screw flow rate SW 4 18 Cap 19 Manual adjuster differential pressure DN 15 to 32 set point range 0 2 to 0 6 bar and 0 2 to 1 bar with manual adjuster and scale for p set...

Страница 29: ...to 4 2 4 2 to 10 3 to 12 5 4 to 15 1 Also as version with flanged valve body 2 KVS coefficient with flanged valve body 3 An increase in noise level can be expected when the specified flow rates are e...

Страница 30: ...installed in the bottom section of the housing in DN 15 to 32 The set point spring is located externally in the DN 40 and 50 versions see Fig 8 The set point can be continuously adjusted using the set...

Страница 31: ...able overpressure pro tection must be installed on site in the plant section Wear personal protective equipment Tip DANGER Risk of personal injury due to residual pro cess medium in the regulator Whil...

Страница 32: ...ickly Parts that are too loose may cause leakage Observe the tightening torques specified in section 7 3 The regulator was checked by SAMSON before it left the factory The product warranty becomes voi...

Страница 33: ...plug 6 Clean the seat and plug thoroughly Check the control lines for any blockag es If the plug is damaged replace the entire plug with a new one Installation 1 Insert cleaned or new plug 2 DN 15 to...

Страница 34: ...acing the diaphragm The diaphragm in some versions can only be replaced together with the diaphragm plate See Fig 2 and Fig 3 Version without manual adjuster Disassembly 1 Put the regulator out of ope...

Страница 35: ...kwise Pull it out the bottom section of the valve body 7 Replace the diaphragm 6 1 Assembly 1 Push the assembly consisting of the new diaphragm 6 1 together the diaphragm plates set point spring 8 and...

Страница 36: ...r sales Service can help during troubleshooting Further information is available in section 10 1 Contact SAMSON s After sales Service for malfunctions not listed in the table and when the malfunction...

Страница 37: ...e e g STL or STM has been triggered Check plant Unlock safety device where nec essary Flow or differential pressure set point not reached Regulator installed against the flow Install the regulator so...

Страница 38: ...he screw joint of the ac tuator dirty or too small Clean screw joint or install larger screw joint Dirt in the control line Clean the control line Jerky control response Increased friction e g due to...

Страница 39: ...ctive equipment Risk of personal injury due to residual pro cess medium in the regulator and control line While working on the regulator and control line residual process medium can escape and dependi...

Страница 40: ...waste 10 Annex 10 1 After sales service Contact SAMSON s After sales Service for support concerning service or repair work or when malfunctions or defects arise E mail address You can reach our after...

Страница 41: ...EB 3131 EN 41 Annex 10 2 Certificates The EU declarations of conformity are in cluded on the next pages...

Страница 42: ...without 1 A 2 3 H Class 300 ohne without 1 H Class 600 und Class 900 ohne without 1 H 1 Das auf dem Stellger t aufgebrachte CE Zeichen hat keine G ltigkeit im Sinne der Druckger terichtlinie The CE ma...

Страница 43: ...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...

Страница 44: ...2020 09 01 English SAMSON AKTIENGESELLSCHAFT Weism llerstra e 3 60314 Frankfurt am Main Germany Phone 49 69 4009 0 Fax 49 69 4009 1507 samson samson de www samson de EB 3131 EN...

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