Samson 41-23 Mounting And Operating Instructions
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Samson 41-23 Mounting And Operating Instructions

Samson 41-23 Mounting And Operating Instructions

Universal pressure reducing valve
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MOUNTING AND OPERATING
INSTRUCTIONS
EB 2512 EN
Translation of original instructions
Type 41-23 Universal Pressure Reducing Valve
Self-operated Pressure Regulators
Edition June 2025

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  • Page 1 MOUNTING AND OPERATING INSTRUCTIONS EB 2512 EN Translation of original instructions Type 41-23 Universal Pressure Reducing Valve Self-operated Pressure Regulators Edition June 2025...
  • Page 2 These mounting and operating instructions (EB) assist you in mounting and operating the device safely. The instructions are binding for handling SAMSON devices. The images shown in this document are for il- lustration purposes only. The actual product may vary.

  • Page 3: Table Of Contents

    Contents Contents Safety instructions and measures....................5 Notes on possible severe personal injury....................7 Notes on possible personal injury......................7 Notes on possible property damage......................9 Warnings on the device..........................10 Markings on the device....................... 11 Nameplate..............................11 Location of the nameplate........................12 Material identification..........................12 2.3.1 Type 2412 Valve............................12 2.3.2...
  • Page 4 Ordering spare parts and operating supplies..................46 Decommissioning..........................47 Removal............................49 11.1 Removing the device from the pipeline....................50 11.2 Removing the actuator from the valve....................50 Repairs............................51 12.1 Returning devices to SAMSON........................ 51 Disposal............................52 Certificates............................ 53 Appendix............................63 15.1 Tightening torques............................ 63 15.2 Lubricants..............................63 15.3 Tools................................63...

  • Page 5: Safety Instructions And Measures

    Qualifications of operating personnel Hazards resulting from the special working con- The Type 41-23 Regulator must be mounted, start- ditions at the installation site of Type 41-23 must ed up, serviced and repaired by fully trained and be identified in a risk assessment and prevented qualified personnel only;...
  • Page 6 The Type 41-23 Regulator does not have a safe- As a result, they do not fall within the scope of ty valve. If necessary, a suitable overpressure pro- ATEX Directive 2014/34/EU.

  • Page 7: Notes On Possible Severe Personal Injury

    _ To prevent uncontrolled excess pressure, make If a SAMSON device contains a substance listed as sure that suitable overpressure protection is in- a substance of very high concern on the candidate stalled on site in the plant section.
  • Page 8 Safety instructions and measures _ Make sure that an MSDS is available for any haz- _ Keep all relevant markings and inscriptions on ardous substance used. If necessary, contact the device in a constantly legible state. the manufacturer to obtain an MSDS. _ Immediately renew damaged, missing or incor- _ Inform yourself about the hazardous sub- rect nameplates or labels.

  • Page 9: Notes On Possible Property Damage

    _ Only use the process medium specified for siz- Certain tools are required to work on the device. ing the device. _ Only use tools approved by SAMSON. When in doubt, consult SAMSON. NOTICE Risk of damage or blockage due to contamina- NOTICE tion (e.g.

  • Page 10: Warnings On The Device

    _ The installation of solenoid valves downstream of the regulator is not permitted when the regu- lator is used to control liquids. Note SAMSON's After-sales Service can support you concern- ing lubricant, tightening torques and tools approved by SAMSON. Warnings on the device...

  • Page 11: Markings On The Device

    Markings on the device 2 Markings on the device Several nameplates are affixed to Type 41-23. The nameplates shown were up to date at the time of publication of this document. The nameplates on the device may differ from the ones shown. The nameplates are used to identify the separate device components.

  • Page 12: Location Of The Nameplate

    2.3.2 Type 2413 Actuator Specifying the material number, you can contact SAMSON to find out which material is used. It is specified on the nameplate in the 'Mat.-No.' field (DIN/ANSI, Fig. 2/3). For more details on the name- plate, see Chapter 2.1.

  • Page 13: Design And Principle Of Operation

    Design and principle of operation 3 Design and principle of operation _ See Fig. 4 The Type 41-23 Pressure Reducing Valve consists of a Type 2412 Closing Valve and a Type 2413 Actua- tor. The valve and actuator (as well as the control line in certain cases) are delivered separately or as- sembled depending on the order.
  • Page 14 Design and principle of operation Type 2412 Valve Bellows actuator for DN 15 to 50 12.1 Bellows actuator for DN 65 to 100 Type 2413 Diaphragm Actuator Type 2413 Bellows Actuator for 2 to 6, 5 to 10, 10 to 22 and 20 to 28 bar Fig.

  • Page 15: Additional Fittings

    _ Select a strainer (mesh size) suitable for the process medium. Note Any impurities carried along by the process medi- um may impair the proper functioning of Type 41-23. Therefore, SAMSON recommends installing a strainer (e.g. SAMSON Type 1 NI with threaded connections or Type 2 NI with flanges). See T 1010 or...

  • Page 16: Technical Data

    Control line connection be- low the middle of the flange: Control line connection in pipeline: Connection above the middle of the flange: Fig. 5: Installation example for Type 41-23 Universal Pressure Reducing Valve Shut-off valve Pressure reducing valve Steam trap Strainer...
  • Page 17 Design and principle of operation Table 1: Technical data of the valve · All pressures in bar (gauge) Valve Type 2412 Nominal size DN 15 to 50 DN 65 to 80 DN 100 Pressure rating PN 16, 25 or 40 Max. perm. differential pres- 16 bar · 25 bar 16 bar  · 20 bar...
  • Page 18 Fig. 6: Connections of Type 2413 Diaphragm Actuator Note Type 41-23 does not have a safety valve. If necessary, a suitable overpressure protection must be installed on site. This prevents the regulator or plant from being damaged due to excess pressure. EB 2512 EN...
  • Page 19 Design and principle of operation Table 5: Materials · Material numbers according to DIN EN Valve Type 2412 Pressure rating PN 16 PN 25 PN 40 Max. permissible tem- 300 °C 350 °C perature Spheroidal Forged stain- Cast iron Cast steel Stainless steel Forged steel Body graphite iron less steel EN-GJL-250...
  • Page 20 Design and principle of operation Table 6: Dimensions in mm and weights in kg Type 41-23 Universal Pressure Reducing Valve Nominal size DN 15 DN 20 DN 25 DN 32 DN 40 DN 50 DN 65 DN 80 DN 100 Length L Height H1 Forged steel – – – –...
  • Page 21 +10 % for all other materials Note The specified dimensions of Type 41-23 are theoretical maximum design values for a specific standard device configuration. They do not reflect every possible case of use. The actual values for individual devices may differ depending on the device configuration and the specific application.
  • Page 22 Design and principle of operation Dimensional drawings Type 41-23 with diaphragm actuator Type 41-23 with bellows actuator ØD ØD Fig. 7: Dimensions of Type 41-23 EB 2512 EN...

  • Page 23: Shipment And On-Site Transport

    Type 41-23 are delivered separately. A tested device is delivered as an assembled unit. WARNING Proceed as follows to lift and install Type 41-23: Risk of personal injury due to the regulator tipping. _ Do not open or remove the packaging until im- _ Observe the device's center of gravity.

  • Page 24: Transporting The Device

    (e.g. crane or forklift). or forklift (see Fig. 8). 2. Carefully lift the regulator. Check whether the _ Leave Type 41-23 on the pallet to transport it. lifting equipment and accessories can bear the _ Observe the transport instructions. weight.

  • Page 25: Storing The Device

    NOTICE Risk of damage due to improper storage. _ Observe the storage instructions. _ Avoid longer storage periods. _ Contact SAMSON in case of different storage condi- tions or longer storage times. Note SAMSON recommends to regularly check Type 41-23 and the prevailing storage conditions during long stor- age periods.

  • Page 26: Installation

    Work position Table 7: Mounting position The work position for Type 41-23 is the front view onto all operating controls (including any additional Mounting positions fittings) seen from the position of operating person- nel.
  • Page 27 The additional pressure of the _ Contact SAMSON if the mounting position differs condensate head (H in Fig. 11) must be compensat- from the standard mounting position.
  • Page 28 Incorrect for all media Permissible for gases and vapors Correct Fig. 9: Control line connection, depending on how the pipeline is routed Fig. 10: Installation example for Type 41-23 Universal Pressure Reducing Valve Shut-off valve Strainer Upstream pressure gauge Pressure reducing valve...

  • Page 29: Preparation For Installation

    If necessary, blow clean compressed air through the connecting parts. – Type 41-23 is clean. – None of the components of Type 41-23 are damaged. – Install a strainer upstream of the regulator. – The requested or required additional pipe fit- tings (see Chapter 3) have been installed or pre-...
  • Page 30 Installation Table 8: Inlet and outlet lengths Control line Min. Min. a x DN b x DN (e.g. control line kit, see section 'Control line' in Chapter 5.1) Inlet length Outlet length State of process Valve conditions Inlet length a Outlet length b medium Gases Ma ≤ 0.3...

  • Page 31: Installation

    Type 41-23 are delivered separately. used. A tested device is delivered as an assembled unit. 5. Bolt Type 41-23 to the pipeline free of stress. Upon delivery, the separate components must be 6. Mount the actuator. assembled together. The activities listed below are necessary to install the device and before it can be _ Diaphragm actuator DN 15 to 100...

  • Page 32: Testing The Device

    Installation _ Unscrew the control line (17) from the valve body. DANGER _ Seal the valve body with G ¼ stoppers (acces- Risk of personal injury due to the operating medi- sories: stopper 8323-0030 and seal 8412-0771). um being released. _ Observe the mesh size of the upstream strain- _ Before starting any work on the pressure reducing er for the maximum particle size.

  • Page 33: Leak Test

    _ Do not allow the pressure to exceed 1.5 times the pressure rating of the body (Type 41-23). Type 41-23 is delivered by SAMSON ready for use. To test the equipment functioning before start-up _ The regulator must remain open.

  • Page 34: Cold Insulation

    150 °C. 5.5.2 Cold insulation To insulate cold systems, SAMSON recommends first filling the plant and carefully rinsing it. The reg- ulator must not yet be insulated at this stage. NOTICE Risk of damage due to incorrect insulation.

  • Page 35: Start-Up

    Start-up 6 Start-up WARNING The work described in this chapter is to be per- Crush hazard arising from moving parts. formed only by personnel appropriately qualified to The regulator contains moving parts (set point carry out such tasks. springs), which can injure hands or fingers if inserted into the regulator.

  • Page 36: Filling And Starting Up The Plant

    5. Make sure that the pressure rises simultaneous- Depending on the conditions in the plant in operation, ly upstream and downstream of Type 41-23 to it may be necessary to install compensation chambers avoid damaging the balancing bellows, plug or to protect the regulator.
  • Page 37 Start-up – All pipes conveying the process medium must be completely drained and dry. – Air and condensate must be allowed to escape from the plant. – Allow time for the pipes and valves to heat up. EB 2512 EN...

  • Page 38: Operation

    WARNING Immediately after completing start-up or placing Crush hazard arising from moving parts. Type 41-23 back into service (see Chapter 6), it is The regulator contains moving parts (set point ready for use. springs), which can injure hands or fingers if inserted into the regulator.

  • Page 39: Adjusting The Set Point

    Operation WARNING Risk of personal injury due to pressurized compo- nents and as a result of process medium being dis- charged. _ Do not unscrew the control line while the regulator is pressurized. _ Do not start up the regulator until all parts have Fig.

  • Page 40: Malfunctions

    Clean the control line and screw fittings. Remove foreign particles. Foreign particles blocking the plug Contact SAMSON's After-sales Service if com- ponents are damaged. Contact SAMSON's After-sales Service if com- Seat and plug are worn or leak. ponents are damaged.

  • Page 41: Emergency Action

    SAMSON recommends removing Type 41-23 from the pipeline before repairing it. In the event of a product malfunction: 1. Close the shut-off valves upstream and down- stream of Type 41-23 to stop the process medi- um from flowing through it. EB 2512 EN...

  • Page 42: Servicing

    Risk of damage due to the use of unsuitable tools. SAMSON recommends removing Type 41-23 from Certain tools are required to work on the device. the pipeline before performing any maintenance or _ Only use tools approved by SAMSON. When in service work. doubt, consult SAMSON. WARNING...

  • Page 43: Service Work Preparations

    Travel stop cap with cotter pin Service work preparations 1. Lay out the necessary material and tools to have SAMSON recommends removing Type 41-23 from the them ready for the service work. pipeline before performing any service work. 2. Put the regulator out of operation (see Chap- ter 8 and Chapter 10).

  • Page 44: Service Work

    Servicing Mounting the actuator The following service work can be performed after preparation is completed: 1. Diaphragm actuator (DN 15 to 100) Insert the actuator stem (11) through the hole in – Replace the actuator (see Chapter 9.2.1). the crossbeam (8) into the travel stop cap with –...

  • Page 45: Replacing The Seat And Plug

    Do not exchange the operating diaphragm in an FDA-compliant regulator version. 11. Place on the spring plate (7.1) and the travel SAMSON's After-sales Service can support you to per- stop cap with cotter pin (20). form such service work. Place the crossbeam (8) on the pillars (8.1) and fasten with the nuts (8.2).

  • Page 46: Mounting The Device And Putting It Back Into Operation After Service Work

    Contact your nearest SAMSON subsidiary or 13. Put the regulator into operation (see Chapter 6). SAMSON's After-sales Service for information on spare parts, lubricants and tools. Spare parts Contact SAMSON's After-sales Service for more in- formation. Lubricants Contact SAMSON's After-sales Service for more in- formation.

  • Page 47: Decommissioning

    Decommissioning 10 Decommissioning _ Stored energy in the set point springs can cause components to move in an uncontrolled manner The work described in this chapter is to be per- resulting in injury to hands or fingers. formed only by personnel appropriately qualified to _ Do not insert hands or fingers between the set carry out such tasks.
  • Page 48 3. Depressurize the plant. 4. Shut off or disconnect any external control line. 5. Allow the pipeline and components to cool down or warm up to ambient temperature, if necessary. 6. Completely drain the pipelines and Type 41-23. EB 2512 EN...

  • Page 49: Removal

    Removal 11 Removal _ Stored energy in the set point springs can cause components to move in an uncontrolled manner The work described in this chapter is to be per- resulting in injury to hands or fingers. formed only by personnel appropriately qualified to _ Do not insert hands or fingers between the set carry out such tasks.

  • Page 50: Removing The Device From The Pipeline

    Before removing, make sure that the following con- ditions are met: – Type 41-23 is put out of operation (see Chap- ter 10). 11.1 Removing the device from the pipeline 1. Support the regulator to hold it in place when separated from the pipeline (see Chapter 4).

  • Page 51: Repairs

    12.1 Returning devices to SAMSON Defective devices can be returned to SAMSON for repair. Proceed as follows to return devices to SAMSON: 1. Put Type 41-23 out of operation (see Chap- ter 10). 2. Decontaminate Type 41-23. Remove any resid- ual process medium.

  • Page 52: Disposal

    Simply e-mail us at aftersalesservice@samsongroup.com giving details of your company address. On request, SAMSON can appoint a service provider to dismantle and recycle the product as part of a distrib- utor take-back scheme. _ Observe local, national and international refuse regulations.

  • Page 53: Certificates

    Pressure Equipment Directive 2014/68/EU for Type 41-23 – EU declaration of conformity in compliance with Machinery Directive 2006/42/EC for Type 41-23 – Declaration of incorporation in compliance with Machinery Directive 2006/42/EC for Type 41-23 The certificate shown was up to date at the time of publishing.
  • Page 54 2444 (44-4) DIN EN, body, EN-GJS-400-18-LT and CC499K, DN 50, PN 25, fluids G2, L2, L1 2447 (44-7) 2449 (44-9) Revision 01 Classification: Public · SAMSON AKTIENGESELLSCHAFT · Weismuellerstrasse 3 · 60314 Frankfurt am Main, Germany Page 1 of 3...
  • Page 55 Gases according to Article 4(1)(c.i), second indent Liquids according to Article 4(1)(c.ii) Gases according to Article 4(1)(c.i), second indent Liquids according to Article 4(1)(c.ii), second indent Revision 01 Classification: Public · SAMSON AKTIENGESELLSCHAFT · Weismuellerstrasse 3 · 60314 Frankfurt am Main, Germany Page 2 of 3...
  • Page 56 Frankfurt am Main, 05. June 2024 ppa. Norbert Tollas i.V. Peter Scheermesser Senior Vice President Director Global Operations Product Maintenance & Engineered Products Revision 01 Classification: Public · SAMSON AKTIENGESELLSCHAFT · Weismuellerstrasse 3 · 60314 Frankfurt am Main, Germany Page 3 of 3...
  • Page 57 ANSI, body, A216 WCC and A351 CF8M, NPS 2½-6, Class 150, all fluids ANSI, body, A216 WCC and A351 CF8M, NPS 1½-6, Class 300, all fluids Revision 01 Classification: Public · SAMSON AKTIENGESELLSCHAFT · Weismuellerstrasse 3 · 60314 Frankfurt am Main, Germany Page 1 of 3...
  • Page 58 DIN EN, body, EN-GJS-400-18-LT, DN 100-150, PN 25, fluids G2, L2, L1 DIN EN, body, 1.0619, DN 100-250, PN 16, all fluids Revision 01 Classification: Public · SAMSON AKTIENGESELLSCHAFT · Weismuellerstrasse 3 · 60314 Frankfurt am Main, Germany Page 2 of 3...
  • Page 59 Frankfurt am Main, 05. June 2024 ppa. Norbert Tollas i.V. Peter Scheermesser Senior Vice President Director Global Operations Product Maintenance & Engineered Products Revision 01 Classification: Public · SAMSON AKTIENGESELLSCHAFT · Weismuellerstrasse 3 · 60314 Frankfurt am Main, Germany Page 3 of 3...
  • Page 60 Frankfurt am Main, 08 September 2023 Stephan Giesen Peter Scheermesser Director Director Product Management Product Maintenance & Engineered Products Revision no. 01 Classification: Public · SAMSON AKTIENGESELLSCHAFT · Weismüllerstraße 3 · 60314 Frankfurt am Main, Germany Page 1 of 1...
  • Page 61 Frankfurt am Main, 08 September 2023 Stephan Giesen Peter Scheermesser Director Director Product Management Product Maintenance & Engineered Products Revision no. 01 Classification: Public · SAMSON AKTIENGESELLSCHAFT · Weismüllerstraße 3 · 60314 Frankfurt am Main, Germany Page 1 of 1...
  • Page 62 Annex II, section 1.A. of the Directive 2006/42/EC For the following product: Type 41-23 Universal Pressure Reducing Valve consisting of Type 2412 Valve and Type 2413 Actuator We hereby declare that the machinery mentioned above complies with all applicable requirements stipulated in Machinery Directive 2006/42/EC.

  • Page 63: Appendix

    SAMSON's After-sales Service can support you concerning lubricants and sealants approved by SAMSON. 15.3 Tools SAMSON's After-sales Service can support you con- cerning tools approved by SAMSON. 15.4 Accessories Table 11: Assignment of compensation chamber (18) to reg- ulator, with item no.

  • Page 64: Spare Parts

    Appendix 15.5 Spare parts Version (2012 onwards) Bellows seal Bellows assembly Coupling nut Balancing screw Seat Plug 17.1 Pre-stage of plug Version with flow divider 17.2 Seal Body Guide cap Guide (DN 32 to 100) 25, 26 Guide bushing/pipe (DN 15 to 25) 17.1 Flanged pipe 17.2...
  • Page 65 Appendix 25/26 Standard device Note There are no spare parts available for the bellows ac- tuators. The entire actuator must be replaced when it is defective. EB 2512 EN...

  • Page 66: After-Sales Service

    You can reach our after-sales service at the fol- lowing e-mail address. aftersalesservice@sam- songroup.com Addresses of SAMSON AG and its subsidiaries The addresses of SAMSON AG, its subsidiaries, rep- resentatives and service facilities worldwide can be found on our website ( www.samsongroup.com) or in all product catalogs. Required specifications Please submit the following details: –...
  • Page 68 EB 2512 EN SAMSON AKTIENGESELLSCHAFT Weismüllerstraße 3 · 60314 Frankfurt am Main, Germany Phone: +49 69 4009-0 · Fax: +49 69 4009-1507 samson@samsongroup.com · www.samsongroup.com...

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