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Samson 3271 Mounting And Operating Instructions
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Samson 3271 Mounting And Operating Instructions

Samson 3271 Mounting And Operating Instructions

Pneumatic actuator
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MOUNTING AND OPERATING
INSTRUCTIONS
EB 8310-2 EN
Translation of original instructions
Type 3271 Pneumatic Actuator
Type 3271 Pneumatic Actuator
Actuator area: 1000 cm²
Edition November 2022

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Summary of Contents for Samson 3271

  • Page 1 MOUNTING AND OPERATING INSTRUCTIONS EB 8310-2 EN Translation of original instructions Type 3271 Pneumatic Actuator Type 3271 Pneumatic Actuator Actuator area: 1000 cm² Edition November 2022...
  • 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....................6 Notes on possible personal injury......................6 Notes on possible property damage......................7 Warnings on the device..........................8 Markings on the device........................9 Actuator nameplate............................9 Design and principle of operation....................10 Direction of action and signal pressure routing..................10 Fail-safe action.............................
  • Page 4 11.1 Removing the actuator from the valve....................33 11.2 Relieving the spring compression in the actuator................. 33 Repairs..............................35 12.1 Returning devices to SAMSON........................35 Disposal............................36 Certificates............................37 14.1 Declaration of incorporation in compliance with Machinery Directive 2006/42/EC......38 Appendix............................39 15.1...

  • Page 5: Safety Instructions And Measures

    Revisions, conversions or other modifications of the used in operating conditions that meet the specifi- product are not authorized by SAMSON. They are cations used for sizing the actuator at the ordering performed at the user's own risk and may lead to stage.

  • Page 6: Notes On Possible Severe Personal Injury

    _ Before unblocking the actuator stem after it has “Additional Information on Your Inquiry/Order” become blocked (e.g. due to seizing up after re- is added to the SAMSON order documents. This maining in the same position for a long time), document includes the SCIP number assigned release any stored energy in the actuator (e.g.

  • Page 7: Notes On Possible Property Damage

    (see section 'Relieving the spring compression in the Certain tools are required to work on the actuator. actuator' in Chapter 11). _ Only use tools approved by SAMSON ( AB 0100). WARNING NOTICE Risk of personal injury due to incorrect opera-...

  • Page 8: Warnings On The Device

    Location on the device Meaning of the warning Warning against the incorrect use of the lifting eye- let/eyebolt or swivel hoist on SAMSON actuators. Only attach load-bearing slings to them to vertical- ly lift the actuator on its own (without the valve). Do not use the lifting eyelet/eyebolt or the swivel hoist to vertically lift the entire control valve assembly.

  • Page 9: Markings On The Device

    The nameplate includes all details required to iden- tify the device. cm² S/N: Mat. Fig. 1: Inscriptions on the nameplate of Type 3271/3277 Actuators with >120 cm² actuator area or Type 3372 Actuators with 350 cm² actuator area Item Inscription meaning 2 Type designation...

  • Page 10: Design And Principle Of Operation

    A26/27 the actuator and the location of the signal pressure connection. Fig. 2: Type 3271 Pneumatic Actuator, drawing showing an The v1 actuator construction has a clamped-in di- example with 1000 cm² actuator area aphragm.

  • Page 11: Fail-Safe Action

    8442-1018 Note Feedback connection (travel pick-off interface) according to DIN EN 60534-6-1 The listed fail-safe actions apply to SAMSON globe valves. Various valve accessories according to DIN EN 60534-6-1 and NAMUR recommendation can be mounted on SAMSON control valves designed ac-...

  • Page 12: Supply Pressure

    However, the supply pressure must not exceed 6 bar in throttling service. See Chapter 7 for restrictions in on/off service. Table 1: Dimensions in mm · Type 3271 Actuator area in cm² 1000 rated...

  • Page 13: Dimensional Drawings

    Design and principle of operation Dimensional drawings ØD2 Ød ØD Fig. 3: Type 3271 with 1000 cm² actuator area ØD2 Ød ØD Fig. 4: 1000 cm² actuator area, with adjustable travel stop Table 2: Weights in kg Type ... Actuator Actuator area in cm²...

  • Page 14: Shipment And On-Site Transport

    2. Check the shipment for transportation damage. _ Observe lifting instructions (see Chapter 4.3.2). Report any damage to SAMSON and the for- warding agent (refer to delivery note). 3. Determine the weight and dimensions of the units to be lifted and transported in order to se-...
  • Page 15 Shipment and on-site transport – Prevent the actuator from tilting or tipping. must not bear any load. The sling only protects the – Do not leave loads suspended when interrupt- control valve from tilting while being lifted. Before ing work for longer periods of time. lifting the control valve, tighten the sling.

  • Page 16: Storing The Actuator

    Risk of actuator 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 We recommend to regularly check the actuator and the prevailing storage conditions during long storage times.

  • Page 17: Installation

    Risk of actuator damage due to the use of unsuit- able tools. WARNING Certain tools are required to work on the actuator. _ Only use tools approved by SAMSON ( AB 0100). Risk of personal injury due to exhaust air being vented. 5.2.1 Mounting the actuator onto the The actuator is operated with air.
  • Page 18 (A26/27) and the ring nut (A8) from the actuator. 5. Slide the ring nut (A8) over the plug stem. 6. Place the actuator onto the valve bonnet and Fig. 8: Type 3271 Pneumatic Actuator mounted on a globe fasten tight with the ring nut (A8). valve 7.

  • Page 19: Pneumatic Connection

    Installation b) Mounting on valve versions with anti-rotation fixture See Fig. 9 1. Firmly press the plug together with the plug stem into the seat. 2. Anti-rotation fixture is not yet mounted on the valve: Follow the instructions described under 'Mount- ing the external anti-rotation fixture' in the as- sociated valve documentation up to the point where the actuator is to be mounted.
  • Page 20 Installation b) Actuator stem retracts 1. Apply a signal pressure that corresponds to the upper signal pressure range value to the con- nection on the top diaphragm case. 2. Screw the vent plug into the connection on the bottom diaphragm case. EB 8310-2 EN...

  • Page 21: Start-Up

    WARNING Certain tools are required to work on the actuator. _ Only use tools approved by SAMSON ( AB 0100). Crush hazard arising from moving parts. The actuator contains moving parts (actuator stem), which can injure hands or fingers if inserted into the actuator.

  • Page 22: Preloading The Springs

    “stem extends”) 6.1.2 Increasing the actuator thrust – In combination with a SAMSON valve: The actu- ator travel range can be adapted to a smaller The thrust can only be increased in actuators with valve travel range “stem extends” direction of action. To achieve this, the springs of the actuators can be preloaded by up to 25 % of their travel or bench range.

  • Page 23: Travel Stop

    Start-up 6.3.2 Top travel stop (maximum Example: DN 100 valve with 30 mm rated travel and 1000 cm² actuator with 60 mm rated travel; 0.2 travel) to 1 bar bench range. 1. Loosen the lock nut (A70). At half the valve travel, the operating range is be- tween 0.2 and 0.6 bar.

  • Page 24: Operation

    _ Immediately renew any nameplates or labels with incorrect or outdated information. _ Add any new values to the nameplate. If necessary, contact SAMSON to obtain a new nameplate. EB 8310-2 EN...

  • Page 25: Malfunctions

    Check the actuator without valve accessories. accessories Check the settings of the valve accessories. Note Contact SAMSON's After-sales Service for malfunctions not listed in the table. 8.2 Emergency action Plant operators are responsible for emergency ac- tion to be taken in the plant.

  • Page 26: Servicing And Conversion

    _ Add any new values to the nameplate. If necessary, quires the actuator to be opened, or when the ac- contact SAMSON to obtain a new nameplate. tuator stem has become blocked, relieve the com- pression from the preloaded springs (see section...

  • Page 27: Periodic Testing

    (see Chap- Certain tools are required to work on the actuator. ter 11). _ Only use tools approved by SAMSON ( AB 0100). Once the work is completed, the signal pressure must be removed and the air supply disconnected again and locked.
  • Page 28 Servicing and conversion 8. Mount the new diaphragm (A4) on the compres- b) “Stem retracts” direction of action sor (A35). Make sure that the seal lip of the di- 1. Lift off the top diaphragm case (A1). aphragm is fully engages into the groove of the 2.

  • Page 29: Replacing The Actuator Stem Seals

    Servicing and conversion 21. Carefully guide the bottom diaphragm case (A2) 7. Fill the cavity of the radial shaft seal, in which over the actuator stem (A7) and place it on the the spring is seated, with lubricant. springs (A10). Make sure that the sealing ele- 8.

  • Page 30: Conversion Work

    11. Place the diaphragm plate assembly together with the actuator stem (A7) pointing upward in- to the diaphragm case (A1). Fig. 15: Actuator stem seal (Type 3271) 12. Place the springs (A10) in the diaphragm plate (A5), centering them in the intended recesses.

  • Page 31: Ordering Spare Parts And Operating Supplies

    Reversal of the direction of action from “stem retracts” to “stem extends” supplies 1. Lift off the top diaphragm case (A1). Contact your nearest SAMSON subsidiary or 2. Pull the diaphragm plate assembly out of the SAMSON's After-sales Service for information on bottom diaphragm case (A2).

  • Page 32: Decommissioning

    Decommissioning 10 Decommissioning _ Do not touch the actuator stem or insert hands or finger into the yoke or beneath the actuator stem The work described in this chapter is to be per- while the air supply is connected to the actuator. formed only by personnel appropriately qualified to _ Before working on the actuator, disconnect and carry out such tasks.

  • Page 33: Removal

    Removal 11 Removal _ Do not touch the actuator stem or insert hands or finger into the yoke or beneath the actuator stem The work described in this chapter is to be per- while the air supply is connected to the actuator. formed only by personnel appropriately qualified to _ Before working on the actuator, disconnect and carry out such tasks.
  • Page 34 Removal Fig. 16: Preloaded springs (functional diagram) Short bolt Clamping bolt Washer Clamping nut Short nut To relieve the compression of the preloaded springs in the actuator, proceed as follows: 1. Unthread and remove the short nuts and bolts (including the washers) on the diaphragm cases. 2.

  • Page 35: Repairs

    _ Do not perform any repair work on your own. _ Contact SAMSON's After-sales Service for service and repair work. 12.1 Returning devices to SAMSON Defective devices can be returned to SAMSON for repair. Proceed as follows to return devices: 1. Exceptions apply concerning some special device models www.samsongroup.com >...

  • Page 36: 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 37: Certificates

    Machinery Directive 2006/42/EC The certificates shown were up to date at the time of publishing. The latest certificates can be found on our website: – www.samsongroup.com > Products > Actua- tors > 3271 Other optional certificates are available on request. EB 8310-2 EN...

  • Page 39: Appendix

    Appendix 15 Appendix 15.1 Tightening torques, lubricants and tools AB 0100 tools, tightening torques and lubricants 15.2 Spare parts Top diaphragm case Bottom diaphragm case Diaphragm Diaphragm plate Actuator stem Ring nut Spring (external) Spring (internal) Collar nut Vent plug Hex bolt Hex nut Hex bolt (preloaded springs) Hex nut (preloaded springs)
  • Page 40 Appendix 160* Fig. 17: Type 3271 Actuator (1000 cm²) EB 8310-2 EN...

  • Page 41: After-Sales Service

    Addresses of SAMSON AG and its subsidiaries The addresses of SAMSON AG, its subsidiaries, rep- resentatives and service facilities worldwide can be found in all SAMSON product catalogs or on our website ( www.samsongroup.com). Required specifications Please submit the following details: –...
  • Page 44 EB 8310-2 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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