Samson 42-24 Mounting And Operating Instructions
Self-operated pressure regulators
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- Mounting and operating instructions (78 pages) ,
- Mounting and operating instructions (92 pages)
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Summary of Contents for Samson 42-24
- Page 1 Self-operated Pressure Regulators Differential Pressure Regulators (closing) Type 42-24 · Type 42-28 Type 42-24 Differential Pressure Regulator Type 42-28 A Differential Pressure Regulator Mounting and Operating Instructions EB 3003 EN Edition July 2015...
- Page 2 Definition of signal words DANGER! NOTICE Hazardous situations which, if not Property damage message or mal- avoided, will result in death or seri- function ous injury Note: WARNING! Additional information Hazardous situations which, if not avoided, could result in death or seri- Tip: ous injury Recommended action...
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Page 3: Table Of Contents
Contents General safety instructions ................4 Process medium and scope of application ............5 Transportation and storage ................5 Design and principle of operation ..............6 Installation ....................9 Mounting position ..................9 Strainer (filter)....................10 Shut-off valve ....................10 Pressure gauge ....................10 Control line, compensation chamber and needle valve ........11 Operation ....................12 Start-up .......................12 Adjusting the set point ..................12... -
Page 4: General Safety Instructions
General safety instructions 1 General safety instructions − All safety instructions and warnings given in these mounting and operating instructions, particularly those concerning installation, start-up and maintenance, must be strictly ob- served. − The device must be mounted, started up or serviced by fully trained and qualified person- nel only;... -
Page 5: Process Medium And Scope Of Application
Process medium and scope of application 2 Process medium and scope of application Differential pressure regulators for district heating systems, extended heating systems and in- dustrial applications Differential pressure set points Δp from 0.05 to 10 bar · Valves DN 15 to 250 · Nominal pressure PN 16 to 40 ·... -
Page 6: Design And Principle Of Operation
(Type 42-24) or a fixed set point (Type 42- 28). The regulators basically consist of a valve Valve body... - Page 7 Design and principle of operation Type 42-24 Type 42-28 Type 2422 Valve, balanced by a bellows (DN 15 to 250) Type 2428 Actuator Type 42-24 Type 2422 Valve, balanced by a diaphragm (DN 65 to 250) Type 2424 Actuator Type 2424 Actuator Fig. 1: Functional diagrams of Type 42-24 and Type 42-28 EB 3003 EN...
- Page 8 The set point springs are mounted inside the actuator for a fixed set point (Type 42-28). These springs can be adjusted externally for an adjustable set point (Type 42-24). Control lines (20) mounted on site transfer the high pressure and low pressure in all ver- sions.
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Page 9: Installation
Installation 5 Installation 5.1 Mounting position The Type 42-24 and Type 42-28 Regulators See Fig. 1 on page 7. are designed for installation in the high See Fig. 2 for permissible mounting positions. pressure (flow) line of the plant. Standard mounting position · Install valve The Type 42-24 and Type 42-28 Regulators... -
Page 10: Strainer (Filter)
Remember to (not between the tapping point and the valve). Type 42-24/42-28 in a flow pipe Type 42-24/42-28 in a return flow pipe (–) (–) Shut-off valve Strainer Differential pressure regulator Compensation chamber (e.g. -
Page 11: Control Line, Compensation Chamber And Needle Valve
Fig. 5.2: Connection at the bottom – incorrect available as an accessories part from position SAMSON (u T 3095). These control line kits for tapping pressure directly at the valve Ø d body already take into account the flow con- ditions. -
Page 12: Operation
Clean the strainer, if necessary. 6.2 Adjusting the set point 6 Operation Type 42-24 · Adjust the required set point by See Fig. 1 on page 7. tensioning the set point springs at the nut (17). 6.1 Start-up If small differential pressure set points are to Î... -
Page 13: Maintenance And Troubleshooting
Maintenance and troubleshooting 7 Maintenance and trouble- WARNING! shooting Excessive pressure may cause parts to move. The regulators do not require any mainte- − Before performing any work on the nance. Nevertheless, they are subject to nat- regulator, depressurize the relevant ural wear, particularly at the seat, plug and plant section and, depending on operating diaphragm. - Page 14 Diaphragm defective Replace the diaphragm (see section 7.1). Recalculate K coefficient. Contact Valve too large for control task SAMSON. Differential Check valve sizing. Install larger valve, if pressure Valve or K coefficient too small necessary. drops far be- low the ad- Safety device, e.g.
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Page 15: Replacing The Operating Diaphragm
7.1 Replacing the operating dia- Addresses of SAMSON AG and its subsid- iaries phragm The addresses of SAMSON AG, its subsid- See Fig. 1 on page 7. iaries, representatives and service facilities If just the operating diaphragm is defective, worldwide can be found on the SAMSON it can be replaced without having to remove website (u www.samson.de) in all SAMSON... -
Page 16: Nameplate
Nameplate 9 Nameplate Nameplates are attached to the valve and the actuator. Valve nameplate DIN version DIN version Valve type Model number Configuration ID (Var.-ID) Order number or date coefficient Nominal size Nominal pressure Perm. differential pressure Perm. temperature ANSI version Body material ANSI version Nominal size... -
Page 17: Appendix
Appendix 10 Appendix 10.1 Technical data Type 42-24 · 42-24 42-28 · 42-28 Nominal size DN 15 to 250 DN 15 to 100 Nominal pressure PN 16, 25 or 40 Valve See pressure-temperature diagram in u T 3000 Max. permissible With compensation chamber: steam and liquids up to 350 °C... - Page 18 Appendix Type 42-24 · Type 42-28 · Balanced by a bellows Ø D Type 42-28 Ø D Type 42-24 Fig. 7: Dimension drawing of Type 2422 Valve balanced by a bellows Type 42-24 with actuator with two diaphragms (special version) Add approx. 55 mm to the overall height H.
- Page 19 Appendix Table 2: Dimensions in mm and weights in kg · Type 42-24 and Type 42-28 balanced by a bellows Nominal size DN Length L Height H1 Height H2 Other materials Forged steel – – – Type 42-28/42-28 Differential Pressure Regulator Set point Height H 0.2 ·...
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Page 20: Dimensions
Appendix 10.2 Dimensions Table 3: Dimensions in mm and weights in Type 42-24 and Type 42-28 · Balanced by a Types 42-24 and 42-28 · Balanced by a diaphragm diaphragm 100 125 150 200 250 Length L 290 310 350 400 480 600 730 Height H 595 720 745 Height H1 –... - Page 21 EB 3003 EN...
- Page 22 EB 3003 EN...
- Page 23 EB 3003 EN...
- Page 24 SAMSON AG · MESS- UND REGELTECHNIK Weismüllerstraße 3 · 60314 Frankfurt am Main, Germany Phone: +49 69 4009-0 · Fax: +49 69 4009-1507 EB 3003 EN samson@samson.de · www.samson.de...
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