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

Samson 3271 Mounting And Operating Instructions

Pneumatic actuators 240, 350 and 700 cm2
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See also: Manual , Mounting and Operating Instructions
Mounting and
Operating Instructions
EB 8310-6 EN
Translation of original instructions
Type 3271
Type 3277
Type 3271 and Type 3277 Pneumatic Actuators
Actuator area: 240, 350, and 700 cm²
Edition March 2017

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  • Page 1 Mounting and Operating Instructions EB 8310-6 EN Translation of original instructions Type 3271 Type 3277 Type 3271 and Type 3277 Pneumatic Actuators Actuator area: 240, 350, and 700 cm² Edition March 2017...
  • Page 2 Î For the safe and proper use of these instructions, read them carefully and keep them for later reference. Î If you have any questions about these instructions, contact SAMSON‘s After-sales Service Department (aftersalesservice@samson.de). The mounting and operating instructions for the devices are included in the scope of delivery.

  • Page 3: Table Of Contents

    Notes on possible personal injury ..............8 Notes on possible property damage ..............9 Markings on the device ................10 Actuator nameplate ..................10 Design and principle of operation ..............11 Type 3271 ....................11 Type 3277 ....................12 Direction of action ..................13 Signal pressure routing .................13 3.4.1 Type 3271 ....................13 3.4.2...
  • Page 4 Contents Operation ....................30 Throttling service ..................30 On/off service .....................30 Reversal of the direction of action ..............31 6.3.1 Reversal of the direction of action from stem extends to stem retracts ....31 6.3.2 Reversal of the direction of action from stem retracts to stem extends ....33 Version with handwheel ................35 6.4.1 Extending the actuator stem manually ............35...

  • Page 5: Safety Instructions And Measures

    SAMSON. SAMSON does not assume any liability for damage resulting from the failure to use the valve for its intended purpose or for damage caused by external forces or any other external factors.
  • Page 6 Î Check with the plant operator for details on further protective equipment. Revisions and other modifications Revisions, conversions or other modifications to the product are not authorized by SAMSON. They are performed at the user's own risk and may lead to safety hazards, for example. Fur- thermore, the product may no longer meet the requirements for its intended use.

  • Page 7: Notes On Possible Severe Personal Injury

    Safety instructions and measures Referenced standards and regulations According to the ignition risk assessment performed in accordance with EN 13463-1:2009, section 5.2, the non-electrical actuators do not have their own potential ignition source even in the rare incident of an operating fault. As a result, they do not fall within the scope of Di- rective 2014/34/EU.

  • Page 8: Notes On Possible Personal Injury

    (see section 9.3). Damage to health relating to the REACH regulation. If a SAMSON device contains a substance which is listed as being a substance of very high concern on the candidate list of the REACH regulation, this circumstance is indicat- ed on the SAMSON delivery note.

  • Page 9: Notes On Possible Property Damage

    Risk of actuator damage due to the use of unsuitable tools. Certain tools are required to work on the actuator. Î Only use tools approved by SAMSON (u AB 0100). Risk of actuator damage due to the use of unsuitable lubricants. The lubricants to be used depend on the actuator material. Unsuitable lubricants may corrode and damage the valve surface.

  • Page 10: Markings On The Device

    12 Symbol indicating fail-safe action Actuator stem extends (FA) Actuator stem retracts (FE) Manual override 14 Connecting thread 15 Diaphragm material 16 Date of manufacture Made in Germany SAMSON 3271 Var-ID Serial no. Fig. 1: Nameplate of Type 3271 Actuator EB 8310-6 EN...

  • Page 11: Design And Principle Of Operation

    3.1 Type 3271 ation The actuator mainly consists of two dia- phragm cases (A1, A2), the diaphragm (A4) The SAMSON Type 3271 and Type 3277 with diaphragm plate (A5), and springs Actuators with 240. 350, and 700 cm² actu- (A10) (see Fig. 2). ator areas are mounted to Series 240, 250, 280, and 290 Valves (globe valves).

  • Page 12: Type 3277

    The principle of operation is the same as that . The direction of action of the actuator of the Type 3271 Actuator. The Type 3277 stem (A7) depends on how the springs are Actuator is fitted with an additional yoke on installed in the actuator.

  • Page 13: Direction Of Action

    Note nal pressure connection (S) to the top dia- The listed fail-safe actions apply to phragm chamber and moves the actuator SAMSON Series 240, 250, 280 and 290 stem (A7) downward opposing the spring Valves (globe valves). force (see Fig. 2, left).

  • Page 14: Version With Direction Of Action "Actuator Stem Extends" (Fa)

    3.5.1 Version with direction of 3.6 Versions action "actuator stem The Type 3271 and Type 3277 Pneumatic extends" (FA) Actuators with 240, 350 or 700 cm² actua- tor area are available in the following ver- When the signal pressure is reduced or the...

  • Page 15: Technical Data

    –31 to +194 °F –50 to +120 °C EPDM –58 to +248 °F On/off service –20 to +90 °C –4 to +194 °F –40 to +120 °C EPDM –40 to +248 °F Compliance The Type 3271 and Type 3277 Pneumatic Actuators bear the EAC mark of conformity. EB 8310-6 EN...
  • Page 16 The dimensions and weights are listed in Table 1. The lengths and heights in the dimension diagrams are shown on page 17 onwards. Table 1: Dimensions in mm and weights in kg Actuator Type 3271 3277 Actuator area cm² rated Height – –...
  • Page 17 Design and principle of operation Dimensional drawings ØD ØD ØD2 ØD2 Ød Ød Standard version of Type 3271 (700 cm²) Standard version of Type 3277 (240, 350 cm²) ØD2 Ød ØD Type 3277 (side view) Type 3271 with travel stop EB 8310-6 EN...
  • Page 18 Design and principle of operation ØD1 ØD2 Ød ØD Type 3277 with handwheel EB 8310-6 EN...

  • Page 19: Measures For Preparation

    2. Check the shipment for transportation WARNING damage. Report any damage to Risk of lifting equipment tipping and risk of SAMSON and the forwarding agent (re- damage to lifting accessories due to exceed- fer to delivery note). ing the rated lifting capacity.

  • Page 20: Transporting

    Measures for preparation 4.2.1 Transporting 4.2.2 Lifting The actuator can be transported using lifting To mount a large actuator, use lifting equip- equipment (e.g. crane or forklift). ment (e.g. crane or forklift) to lift it. Î Leave the actuator in its transport con- Lifting instructions tainer or on the pallet to transport it.
  • Page 21 Measures for preparation Lifting the actuator (without valve) 2. Carefully lift the actuator. Check whether the lifting equipment and accessories can bear the weight. NOTICE Risk of actuator damage due to incorrectly 3. Move the actuator at an even pace to the attached slings.

  • Page 22: Storage

    − Observe storage instructions. them up. − Avoid long storage times. − We recommend a storage temperature of − Contact SAMSON in case of different stor- 15 °C for elastomers. age conditions or long storage periods. − Store elastomers away from lubricants, chemicals, solutions, and fuels.

  • Page 23: Preparation For Installation

    Measures for preparation 4.4 Preparation for installation Proceed as follows: Î Check the actuator for damage. Î Check to make sure that the type desig- nation, material and temperature range of the actuator match the ambient condi- tions (temperatures etc.). Î...

  • Page 24: Mounting And Start-Up

    5 Mounting and start-up 5.1 Mounting the actuator onto the valve SAMSON control valves are delivered ready for use. In special cases, the valve and actu- Proceed as follows if the valve and actuator ator are delivered separately and must be have not been assembled by SAMSON: assembled on site.
  • Page 25 Bonnet/flange Ring nut Threaded bushing A26/27 Stem connector clamps Stem connector nut Dimension a Refer to Table 2 Lock nut Dimension x Refer to Table 3 Travel indicator scale Actuator stem Fig. 6: Type 3271 Pneumatic Actuator mounted on globe valve EB 8310-6 EN...
  • Page 26 15 (100 %) 19 (125 %) 0 (0 %) 30 (100 %) 38 (125 %) Type 3271: bottom edge of the bottom case to the top of the actuator stem Type 3277: bottom edge of the bottom case to the top of the actuator stem EB 8310-6 EN...

  • Page 27: Preloading The Springs

    (A1, A2) with "stem extends") rest on the diaphragm (A4). Hold the − In combination with a SAMSON valve: bold head stationary with a suitable tool the actuator travel range can be adapted and apply the tightening torque to the to a smaller valve travel range nuts.

  • Page 28: Adapting The Travel Range

    Mounting and start-up Top diaphragm case Hexagon bolt (preloading) Bottom diaphragm case Hexagon nut (preloading) Diaphragm Blanking plug Hexagon screw Washer Hexagon nut Fig. 7: Actuator with clamping nuts and bolts 5.2.3 Adapting the travel Example: DN 50 valve with 15 mm rated range travel and 700 cm²...
  • Page 29 Direction of action: actuator stem retracts The springs of actuators with "stem retracts" action cannot be preloaded. When a SAMSON valve is combined with an over- sized actuator (e.g. the rated travel of the actuator is larger than the rated travel of the valve), only the first half of the actuator's bench range can be used.

  • Page 30: Operation

    Additional points that apply concerning op- eration: 6.1 Throttling service Î Label actuator with reduced supply pres- The Types 3271 and Type 3277 Pneumatic sure with a sticker ("Max. supply pres- Actuators with 240, 350, and 700 cm² actu- sure limited to ... bar").

  • Page 31: Reversal Of The Direction Of Action

    After reversal, the symbol and configuration ID on the nameplate are no longer valid. The direction of action (and fail-safe action) Contact SAMSON to request a new name- of pneumatic actuators can be changed. The plate. fail-safe action is indicated on the nameplate by a symbol: 6.3.1...
  • Page 32 Operation 12. Place the diaphragm plate assembly to- NOTICE gether with the actuator stem (A7) point- Malfunction due to loosened nut. ing upward into the diaphragm case The nut (A9) on the actuator stem serves to (A1). adjust the dimension x. Do not undo the nut. 13.

  • Page 33: Reversal Of The Direction Of Action From Stem Retracts To Stem Extends

    Table 3: Values for dimension x (see Fig. 8) Dimension x in mm Type Actuator area Travel in mm (top of the nut to the bottom of the actuator stem) 98.25 3271 107.25 – 3277 EB 8310-6 EN...
  • Page 34 Operation 9. Tighten the collar nut (A15), while hold- ing the nut (A9) stationary. Observe tightening torques. 10. Apply a suitable lubricant to the actuator stem (A7). 11. Place the diaphragm plate assembly to- gether with the actuator stem (A7) point- ing downward into the bottom dia- phragm case (A2).

  • Page 35: Version With Handwheel

    The actuator stem position can be adjusted using the handwheel (A60). See Fig. 9. Note If you want to fit a handwheel to an actuator, contact SAMSON's After-sales Service de- partment. 6.4.1 Extending the actuator stem manually 1. Loosen the lock nut (A66) to unlock the handwheel (A60).

  • Page 36: Adjusting The Travel Stop

    Operation 6.5.2 Top travel stop (maximum 2. Turn the handwheel counterclockwise to retract the actuator stem. travel) 3. To change from manual to automatic op- 1. Loosen top lock nut (A74). eration, put the handwheel into the neu- tral position by aligning the pointer 2.
  • Page 37 Operation Left half: Actuator stem retracts (FE) Right half: Actuator stem extends (FA) Diaphragm plate A73 Cover Actuator stem A74 Lock nut A50 Top actuator stem A75 Top diaphragm case A70 Adjustment nut Fig. 10: Travel stop EB 8310-6 EN...

  • Page 38: Servicing

    Risk of actuator damage due to the use of Actuators with preloaded springs are under unsuitable tools. tension. They can be identified by three long Only use tools approved by SAMSON bolts protruding from the bottom of the actu- (u AB 0100). ator.

  • Page 39: Replacing The Diaphragm

    Servicing 7.1 Replacing the diaphragm 3. Relieve the spring compression of actua- tors with preloaded springs (see sec- tion 9.3). NOTICE 4. Lift off the top diaphragm case (A1) and Risk of malfunction due to damaged hose remove springs (A10). clamp. 5.
  • Page 40 Servicing 8. Mount the new diaphragm (A4). Make 350 and 700 cm²: turn the screw on the sure the diaphragm is correctly aligned latch of the hose clamp until only a gap with the diaphragm plate. The imaginary of just a few millimeters remains between line through two opposing recesses for the diaphragm (A4) and hose clamp springs on the diaphragm plate must be...
  • Page 41 Servicing Make sure that the sealing elements are 4. Pull the diaphragm plate assembly con- not damaged. sisting of the diaphragm plate (A5), dia- phragm (A4), and actuator stem (A7) out 13. Place the springs (A10) into the bottom of the actuator. diaphragm case, centering them in the intended recesses.

  • Page 42: Replacing The Actuator Stem Seals

    Servicing aligned centrally between two bolting damaged. Ensure that the compressed holes in the diaphragm (see Fig. 12). air connections on the cases (A1, A2) are correctly aligned with each other. 9. Place the hose clamp (A6) evenly into the groove in the diaphragm (A4) intended 16.
  • Page 43 Servicing 9. Renew the dry bearing (A42) and wiper (A41), if necessary. Type 3271 10. Apply a suitable lubricant to the actuator stem (A7). 11. Place the diaphragm plate assembly con- sisting of the diaphragm plate (A5), new diaphragm (A4), and actuator stem (A7) into the bottom diaphragm case (A2).

  • Page 44: Preparation For Return Shipment

    4. Send the actuator to your nearest able clamping fixture. SAMSON subsidiary. SAMSON subsid- 12. Place the diaphragm plate assembly to- iaries are listed on our website at gether with the actuator stem (A7) point- u www.samson.de >...

  • Page 45: Ordering Spare Parts And Operating Supplies

    Servicing 7.4 Ordering spare parts and operating supplies Contact your nearest SAMSON subsidiary or the SAMSON After-sales Service depart- ment for information on spare parts, lubri- cants, and tools. Spare parts See section 10.2 for details on spare parts. Lubricant Details on suitable lubricants can be found in the document u AB 0100.

  • Page 46: Malfunctions

    Malfunctions 8 Malfunctions Depending on the operating conditions, check the actuator at certain intervals to prevent possible failure before it can occur. Operators are responsible for drawing up an inspection plan. Troubleshooting Malfunction Possible reasons Recommended action Actuator stem does not move on Actuator is blocked.
  • Page 47 EB 8310-6 EN...

  • Page 48: Decommissioning And Disassembly

    Decommissioning and disassembly 9 Decommissioning and disas- 9.2 Removing the actuator sembly from the valve 1. Put the control valve out of operation. DANGER See associated valve documentation. Risk of bursting in the actuator. 2. Undo the clamps of the stem connector Actuators are pressurized.
  • Page 49 Decommissioning and disassembly Top diaphragm case Hexagon bolt (preloading) Bottom diaphragm case Hexagon nut (preloading) Diaphragm Blanking plug Hexagon screw Washer Hexagon nut Fig. 15: Actuator with clamping nuts and bolts EB 8310-6 EN...

  • Page 50: Annex

    You can reach the After-sales Service De- partment at aftersalesservice@samson.de. Addresses of SAMSON AG and its subsid- iaries The addresses of SAMSON AG, its subsid- iaries, representatives and service facilities worldwide can be found on the SAMSON website, in all SAMSON product catalogs or on the back of these Mounting and Operat- ing Instructions.

  • Page 51: Spare Parts

    Annex 10.2 Spare parts 1 Top diaphragm case 56 Hexagon nut  1) 2 Bottom diaphragm case 57 Coupling nut 4 Diaphragm 58 Washer 5 Diaphragm plate 59 Yoke 6 Hose clamp 60 Handwheel 7 Actuator stem 61 Dowel pin 8 Ring nut 62 Dowel pin 9 Hexagon nut 63 Threaded pin...
  • Page 52 20/22 20/22 41/49 20/22 20/22 EB 8310-6 EN...
  • Page 53 20/22 26/27 EB 8310-6 EN...
  • Page 54 EB 8310-6 EN...
  • Page 55 EB 8310-6 EN...
  • Page 56 EB 8310-6 EN SAMSON AKTIENGESELLSCHAFT Weismüllerstraße 3 · 60314 Frankfurt am Main, Germany Phone: +49 69 4009-0 · Fax: +49 69 4009-1507 samson@samson.de · www.samson.de...

This manual is also suitable for:

3277

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