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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 8310-1 EN
Translation of original instructions
Type 3271 Pneumatic Actuator
Type 3277 Pneumatic Actuator
Pneumatic Actuators
Type 3271-5 (120 cm²) · Type 3277-5 (120 cm²)
Edition November 2022

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Summary of Contents for Samson 3271

  • Page 1 MOUNTING AND OPERATING INSTRUCTIONS EB 8310-1 EN Translation of original instructions Type 3271 Pneumatic Actuator Type 3277 Pneumatic Actuator Pneumatic Actuators Type 3271-5 (120 cm²) · Type 3277-5 (120 cm²) Edition November 2022...

  • Page 2: Definition Of Signal Words

    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..................11 Fail-safe action.............................
  • Page 4 11.1 Removing the actuator from the valve....................36 11.2 Relieving the spring compression in the actuator................. 37 Repairs..............................38 12.1 Returning devices to SAMSON........................38 Disposal............................39 Certificates............................40 14.1 Declaration of incorporation in compliance with Machinery Directive 2006/42/EC......41 Appendix............................42 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

    Certain tools are required to work on the actuator. actuator. Actuators with considerably preloaded springs are also labeled correspondingly (see Chap- _ Only use tools approved by SAMSON ter 1.4). ( AB 0100). _ Before starting any work on the actuator, which...

  • Page 8: Warnings On The Device

    Safety instructions and measures 1.4 Warnings on the device Warning symbols Location on the device Actuators manufac- tured before April 2020 have the following warn- ing affixed to them: ACHTUNG ! ATTENTION ! ATTENTION ! VORGESPANNTER PRE-LOADED SERVO-MOTEUR ANTRIEB ACTUATOR PRECONTRAINT Meaning of the warning Warning to indicate that the springs...

  • 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 or Type 2780 Actuators with 120 cm² actuator area Item Inscription meaning 2 Type designation 3 Company name 4 Company address (ZIP/postal code and city)

  • Page 10: Design And Principle Of Operation

    50 % in A20/21 both directions (actuator stem extends or retracts). In contrast to the construction of the Type 3271 Ac- tuator, the Type 3277 Actuator is fitted with an ad- ditional yoke on the bottom diaphragm case. The yoke allows the direct attachment of a positioner and/or limit switch.

  • Page 11: Direction Of Action And Signal Pressure Routing

    In this case, the signal pressure is routed directly over the signal pressure connection (A2.9) of the connecting plate to the diaphragm chamber. Reversal of the direction of action The direction of action for both Type 3271 and A5.2 Type 3277 can be reversed (see Chapter 9). A5.1 A2.1...

  • Page 12: Fail-Safe Action

    (to avoid excess pressure in the device). Furthermore, the vent plugs allow air Note intake to prevent a vacuum from forming in the de- The listed fail-safe actions apply to SAMSON globe vice ( AB 07). valves. Lifting fixture...

  • Page 13: Versions

    60534-6-1 and NAMUR recommendation can be Diaphragm ma- Type of service Tempera- mounted on SAMSON control valves designed ac- terial ture range cording to the modular principle (see associated –35 to +80 °C valve documentation).
  • Page 14 Design and principle of operation Table 1: Dimensions in mm · Type 3271 Actuator area in cm² – – Only with handwheel With handwheel and travel stop – Only with handwheel – Height With handwheel and travel stop – rated –...
  • Page 15 Dimensional drawings for Type 3271 Dimensional drawings for Type 3277 ØD ØD ØD2 Ød ØD2 Ød Fig. 7: Type 3271-5 · 120 cm² actuator area Fig. 9: Type 3277-5 · 120 cm² actuator area ØD ØD ØD2 ØD2 Ød Ød Fig. 8: Type 3271-5 with additional handwheel Fig.
  • Page 16 Dimensional drawings for mounting on a mi- cro-flow valve ØD2 ØD2 M14x1 M14x1 Ød Ød Fig. 11: Type 3271-5 and Type 3277-5 with 7.5 mm travel for Type 3510 Micro-flow Valve Table 3: Weights in kg Type ... Actuator Actuator area in cm² 3271 Without handwheel 3271...

  • Page 17: Shipment And On-Site Transport

    NOTICE 2. Check the shipment for transportation damage. Risk of actuator damage due to incorrectly at- Report any damage to SAMSON and the for- tached slings. warding agent (refer to delivery note). _ Do not attach load-bearing slings to the hand- 3.

  • Page 18: 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 19: 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 20 Mounting on Series 240 Valves without an- ti-rotation fixture See Fig. 12 1. Loosen the lock nut and stem connector nut on Fig. 12: Type 3271 Pneumatic Actuator on a Series 240 Valve the valve. Bonnet/flange Actuator stem 2. Firmly press the plug together with the plug...
  • Page 21 Installation on the actuator stem until the plug (5) starts to c) Mounting on valve versions with anti-rotation fixture move out of the seat. “Actuator stem retracts” direction of action: See Fig. 14 Apply a signal pressure that corresponds to the upper signal pressure range value to the actua- 1.

  • Page 22: Pneumatic Connection

    Installation a) Type 3271-5 “Actuator stem extends” (FA) direction of action _ Connect the signal pressure to the bottom sig- nal pressure connection (S). See Fig. 12. The sig- nal pressure is routed to the bottom diaphragm chamber and moves the actuator stem (A7) up- ward opposing the spring force.
  • Page 23 Installation Switchover plate A2.7 A2.8 A2.6 A2.4 A2.5 Actuator stem extends: Right attachment Left attachment Actuator stem retracts: Left attachment Right attachment Connecting plate A2.9 A2.4 A2.5 Actuator stem: Extends Retracts Fig. 15: Switchover plate and connecting plate on Type 3277-5 A2.4 Symbol A2.5 Marking for signal pressure input A2.6 With left attachment...

  • Page 24: 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 25: Adapting The Travel Range

    Actuator stem extends (FA) When a SAMSON valve is combined with an over- sized actuator (i.e. the rated actuator travel is larger than rated valve travel), the bench range is shifted.

  • Page 26: Version With Handwheel

    (A60). top stop position is reached. 2. Retract the actuator stem up to the required po- sition. Fig. 17: Type 3271-5 Actuator with handwheel A51 Stem connector A60 Handwheel Horizontal marking on the housing To change from manual to automatic mode, place the handwheel in the neutral position.

  • Page 27: 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 8310-1 EN...

  • Page 28: 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 29: 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 30: 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 31: Replacing The Diaphragm

    A15 A9 Type 3277-5 A5.1 A5.2 A20/21 A2.1 Type 3271-5 A133 Fig. 18: Type 3271-5 and Type 3277-5 Pneumatic Actuators Top diaphragm case A15 Collar nut Bottom diaphragm case A16 Vent plug A2.1 Switchover/connecting plate for signal pressure routing A20 Hex bolt Diaphragm A21 Hex nut A5.1 Diaphragm plate...

  • Page 32: Replacing The Actuator Stem Seals

    10. Place the springs (A10) into the bottom di- aphragm case, centering them in the intended recesses. SAMSON recommends to also replace the diaphragm 11. Place on the top diaphragm case (A1). when replacing the actuator stem seal (see Chap- 12.

  • Page 33: Conversion Work

    (A1, A2) together using the nuts (A21) and bolts (A20). Observe tightening torques. (A20). Observe tightening torques. 11. Type 3271-5: Connect the signal pressure as described in section 'Pneumatic connection' in 9.5 Conversion work Chapter 5. Unscrew the vent plug (A16) from the 9.5.1...

  • Page 34: Determining The Inside Dimension

    (A1, A2) together using the nuts (A21) and bolts tools. (A20). Observe tightening torques. 12. Type 3271-5: Connect the signal pressure as described in section 'Pneumatic connection' in Chapter 5. Unscrew the vent plug (A16) from the bottom signal pressure connection and screw it into the top connection (S).

  • Page 35: 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 36: Removal

    Risk of personal injury due to exhaust air being vented. The actuator is operated with air. As a result, air is vented during operation. Fig. 20: Type 3271 Pneumatic Actuator on a Series 240 Valve _ Wear eye and hearing protection when working Bonnet/flange Actuator stem near the actuator.

  • Page 37: Relieving The Spring Compression In The Actuator

    Removal 3. “Actuator stem extends” direction of ac- 5. Loosely thread the lock nut (A27.3) and stem tion: To retract the actuator stem, apply a signal connector nut (A27.1) on the actuator. pressure corresponding to approx. 50 % of the Note bench range to the actuator.

  • Page 38: 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 39: 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 40: Certificates

    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 – www.samsongroup.com > Products > Actua- tors > 3277 Other optional certificates are available on request.

  • Page 42: Appendix

    Appendix 15 Appendix Gasket Filter 15.1 Tightening torques, lubricants and Stopper tools Stopper Protective cap AB 0100 tools, tightening torques and lubricants Type 3277 only Only in version for micro-flow valve 15.2 Spare parts Top diaphragm case Bottom diaphragm case Switchover or connecting plate Diaphragm Diaphragm plate (two-piece) Actuator stem...
  • Page 43 Appendix 160* 26/27 Fig. 23: Type 3271-5 Actuator 27.3 160* 27.1 Fig. 24: Connection to version for micro-flow valve EB 8310-1 EN...
  • Page 44 Appendix 26/27 160* Fig. 25: Type 3277-5 Actuator EB 8310-1 EN...

  • Page 45: 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 48 EB 8310-1 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...

This manual is also suitable for:

32773271-53277-5