Samson 2357-31 Mounting And Operating Instructions Download Page 2

2

EB 2558 EN

Contents

CAUTION!

Indicates a hazardous situation which could
lead to personal injury

NOTICE!

Indicates a risk of property damage.

Note!

Indicates supplementary explanations,

information and tips

Definitions of the signal words used in these instructions

Contents

Page

1

Design and principle of operation

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1.1

Process medium, application range .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 4

2

Installation

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2.1

Mounting position .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 6

2.2

Shut-off valves, pressure gauges .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 6

3

Operation

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3.1

Start-up.  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 7

3.2

Set point adjustment .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 7

3.3

Decommissioning .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 8

4

Maintenance

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5

Customer service

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6

Nameplate

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7

Technical data

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8

Dimensions

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8.1

Accessories .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  . 11

Summary of Contents for 2357-31

Page 1: ...uild up Regulator Type 2357 31 with safety function and integrated pressure relief valve Mounting and Operating Instructions EB 2558 EN Edition March 2010 Type 2357 31 with non return unit Connections with soldering nipples and ball type bushings ...

Page 2: ...nitions of the signal words used in these instructions Contents Page 1 Design and principle of operation 4 1 1 Process medium application range 4 2 Installation 6 2 1 Mounting position 6 2 2 Shut off valves pressure gauges 6 3 Operation 7 3 1 Start up 7 3 2 Set point adjustment 7 3 3 Decommissioning 8 4 Maintenance 8 5 Customer service 9 6 Nameplate 10 7 Technical data 10 8 Dimensions 11 8 1 Acces...

Page 3: ... rective 97 23 EC Regulators with a CE marking have a declaration of con formity that includes information about the applied conformity assessment procedure The declaration of conformity is available on request 4 For appropriate operation make sure that the regulator is only used in areas where the operating pressure and temperatures do not exceed the operating values specified in the order that t...

Page 4: ...essure exceeds the set point by approx 5 bar the positioning force overcomes the force of the closing spring 4 causing the pressure build up plug 2 to open and the pressure to be re lieved to ports B and C Pressure relieve valve The process medium flows from port B to port C As long as there is no pressure drop across ports B and C the plug seals off to wards the operating diaphragm 3 The pressure...

Page 5: ...essure build up plug 2 1 Tubular plug 3 Operating diaphragm 4 Closing spring 5 Set point spring s 6 Set point adjuster Allen key width across flats SW 6 6 1 Lock nut width across flats SW 17 7 Lower body section 10 Non return unit accessories 11 Soldering nipple with ball type bushing accessories 12 Filter accessories ...

Page 6: ...port C must face up The direction of flow determines the regulator s function Pressure build up regulator with safety function from port A to B Pressure relief valve with non return unit from B to C port C faces up NOTICE Impurities in the connecting lines can impair the regulator s proper functioning above all the tight shut off As a result make sure the connecting lines are free of particles 2 2...

Page 7: ...If pressure gauges are installed in the con necting lines the desired set point can be ad justed directly using the indicated pressure gauge value Without pressure gauges the set point is adjusted as shown in the adjust ment diagram in Fig 3 1 Loosen the lock nut 6 1 using the SW 17 wrench so far that the set point ad juster 6 can be moved freely 2 Determine the difference between the preset and t...

Page 8: ...c tions CAUTION Make sure the relevant plant section has been depressurized and depending on the pro cess medium drained as well before remov ing the regulator from the pipeline Check the filters installed in ports A and B if applicable and clean them if necessary If you do not succeed in removing faults or malfunctions yourself contact SAMSON for support see section 5 8 EB 2558 EN Maintenance Tab...

Page 9: ...on de in a SAMSON product catalog or on the back of these mounting and operating instructions Include the following details when making inquiries see section 6 4 Regulator type 4 Set point range manufacturing data 4 Customer specific data if mentioned on the spring housing or nameplate 4 Upstream and downstream pressures 4 Temperature and process medium 4 Min and max flow rate in m h 4 Installatio...

Page 10: ...8 bar 5 to 25 bar 8 to 40 bar Permissible operating pressure 40 bar Safety function 5 bar above the set point Pressure relief function Approx 1 bar above the set point Temperature range 196 to 200 C Approx weight 3 5 kg Ports A B M40 x 2 C M26 x 1 5 male thread Non return unit M26 x 1 5 or M40 x 2 Fig 4 Specifications on the nameplate 1 2 3 Explanation Specifications on the spring housing 1 Set po...

Page 11: ...soldering nipple for 28 mm pipe PN 40 for port C if non return unit is used 1400 7300 One soldering nipple for 18 mm pipe PN 40 for port C without non return unit 1400 7091 Cap for port C 1400 7297 Cap for port A 1400 9527 Three welding ends for 18 x 1 6 mm pipe 1 4404 with brass coupling nut for ports A B and C if non return unit is used 1400 9742 EB 2558 EN 11 Dimensions Accessories Fig 5 Dimens...

Page 12: ...SAMSON AG MESS UND REGELTECHNIK Weismüllerstraße 3 60314 Frankfurt am Main Germany Phone 49 69 4009 0 Fax 49 69 4009 1507 Internet http www samson de EB 2558 EN S Z 2010 03 ...

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