Samson 3271 Original Instructions Manual
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Samson 3271 Original Instructions Manual

Pneumatic actuators
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EB 8310-6 EN
Translation of original instructions
Type 3271
Type 3277
Types 3271 and 3277 Pneumatic Actuators
Actuator area:
240, 350 and 700 cm²
Edition October 2019

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Summary of Contents for Samson 3271

  • Page 1 EB 8310-6 EN Translation of original instructions Type 3271 Type 3277 Types 3271 and 3277 Pneumatic Actuators Actuator area: 240, 350 and 700 cm² Edition October 2019...
  • Page 2 Note on these mounting and operating instructions These mounting and operating instructions assist you in mounting and operating the device safely. The instructions are binding for handling SAMSON devices. The images shown in these instructions are for illustration purposes only. The actual product may vary.

  • Page 3: Table Of Contents

    Warnings on the device ................1-6 Markings on the device ................2-1 Actuator nameplate ..................2-1 Label indicating actuator with preloaded springs ...........2-2 Design and principle of operation ...............3-1 Type 3271 ....................3-1 Type 3277 ....................3-2 Direction of action ..................3-2 Signal pressure routing ................3-3 3.4.1 Type 3271 ....................3-3 3.4.2...
  • Page 4 Ordering spare parts and operating supplies ..........9-12 Decommissioning ..................10-1 Removal ....................11-1 11.1 Removing the actuator from the valve ............11-2 11.2 Relieving the spring compression in the actuator ..........11-2 Repairs ....................12-1 12.1 Returning devices to SAMSON ..............12-1 Disposal ....................13-1 EB 8310-6 EN...
  • Page 5 Contents Certificates ....................14-1 Annex......................15-1 15.1 Tightening torques, lubricants and tools ............15-1 15.2 Spare parts ....................15-1 15.3 After-sales service ..................15-4 EB 8310-6 EN...
  • Page 6 EB 8310-6 EN...

  • Page 7: Safety Instructions And Measures

    SAM- SON. SAMSON does not assume any liability for damage resulting from the failure to use the de- vice for its intended purpose or for damage caused by external forces or any other external factors.
  • Page 8 Î Check with the plant operator for details on further protective equipment. Revisions and other modifications Revisions, conversions or other modifications of 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 9: 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 10: Notes On Possible Personal Injury

    Safety instructions and measures 1.2 Notes on possible personal injury WARNING Crush hazard arising from moving parts. The actuator contains moving parts (actuator stem), which can injure hands or fingers if inserted into the actuator. Î Do not touch the actuator stem or insert hands or finger into the yoke or beneath the actuator stem while the air supply is connected to the actuator.

  • Page 11: Notes On Possible Property Damage

    WARNING 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 12: Warnings On The Device

    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 surface. Î Only use lubricants approved by SAMSON (u AB 0100). 1.4 Warnings on the device Warning...

  • Page 13: Markings On The Device

    13 Symbol indicating fail-safe action Actuator stem extends (FA) Actuator stem retracts (FE) Manual override 14 Diaphragm material 15 Connecting thread 16 Date of manufacture 17 Data Matrix code Mat: 11/12 S/N: Fig. 2-1: Nameplate of Type 3271 Actuator EB 8310-6 EN...

  • Page 14: Label Indicating Actuator With Preloaded Springs

    Markings on the device 2.2 Label indicating actuator with preloaded springs A label on the actuator indicates that the actuator springs are preloaded in the delivered state (see Fig. 2-2). ACHTUNG ! ATTENTION ! ATTENTION ! VORGESPANNTER PRE-LOADED SERVO-MOTEUR ANTRIEB ACTUATOR PRECONTRAINT Fig. 2-2: Adhesive label indicating preloaded actuator springs in the delivered state EB 8310-6 EN...

  • Page 15: Design And Principle Of Operation

    Design and principle of operation 3 Design and principle of operation The SAMSON Type 3271 and Type 3277 The signal pressure p creates the force F = Actuators with 240, 350 and 700 cm² actu- · A at the diaphragm surface A which is...

  • Page 16: Type 3277

    (A10) and diaphragm plate (A5) The principle of operation is the same as that are arranged in the actuator. of the Type 3271 Actuator. The Type 3277 Actuator is fitted with an additional yoke on With direction of action "actuator stem ex- the bottom diaphragm case (A2) (see tends", the compressed air is applied to the...

  • Page 17: Signal Pressure Routing

    No additional piping to the actuator is sure is increased enough to overcome the required. Refer to the associated positioner spring force. documentation for more details. In the "actuator stem retracts" version, simi- lar to Type 3271, the signal pressure is rout- EB 8310-6 EN...

  • Page 18: Version With Direction Of Action "Actuator Stem Retracts

    3.6 Versions without valve. The swivel hoist can be or- dered (accessories). The Type 3271 and Type 3277 Pneumatic Item no. Actuators with 240, 350 or 700 cm² actua- Actuator area Eyebolt...

  • Page 19: Technical Data

    Design and principle of operation tion can be mounted on SAMSON control Diaphragm material Temperature range valves designed according to the modular Throttling service principle. See associated valve documenta- –35 to +90 °C tion. The travel pick-off interface for these –31 to +194 °F mounted devices can be ordered (accesso- –50 to +120 °C...
  • Page 20 Design and principle of operation Dimensions in mm and weights in kg Actuator Type 3271 3277 Actuator cm² area – – – –  1) Only with handwheel With handwheel and travel stop Only with handwheel Height With handwheel and travel stop rated –...
  • Page 21 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 22 Design and principle of operation ØD1 ØD2 Ød ØD Type 3277 with handwheel EB 8310-6 EN...

  • Page 23: Shipment And On-Site Transport

    Risk of lifting equipment tipping over and damage. Report any damage to risk of damage to lifting accessories due to SAMSON and the forwarding agent exceeding the rated lifting capacity. (refer to delivery note). Î Only use approved lifting equipment and 3.

  • Page 24: Transporting The Actuator

    Shipment and on-site transport 4.3.2 Lifting the actuator Î Do not attach load-bearing slings to the handwheel or travel stop. To mount large actuators onto the valve, use Î Observe lifting instructions (see sec- lifting equipment (e.g. crane or forklift) to lift tion 4.3.2).
  • Page 25 Shipment and on-site transport 4. Move the actuator at an even pace to the mounting site. 5. Mount the actuator to the valve (see the 'Mounting and assembly' section). 6. Remove slings after mounting. 700 cm² actuator: replace the cover on the eyebolt (see Fig. 4-3 and Fig. 4-4).
  • Page 26 Shipment and on-site transport Fig. 4-1: Ring bolt Fig. 4-3: Eyebolt cover in place on the eyebolt Fig. 4-4: Eyebolt cover (with strap) opened Fig. 4-2: Swivel hoist Fig. 4-5: Lifting point on the actuator Fig. 4-6: Lifting points on the control valve (example) EB 8310-6 EN...

  • Page 27: Storing The Actuator

    Î Observe the storage instructions. Î Avoid long storage times. Special storage instructions for elastomers Î Contact SAMSON in case of different Elastomer, e.g. actuator diaphragm storage conditions or long storage peri- − To keep elastomers in shape and to pre- ods.
  • Page 28 EB 8310-6 EN...

  • Page 29: Mounting And Assembly

    5.2 Mounting the device it has become blocked (e.g. due to seizing up after remaining in the same Depending on the version, SAMSON control position for a long time), release any valves are either delivered with the actuator stored energy in the actuator (e.g. spring already mounted on the valve or the valve compression).

  • Page 30: Mounting The Actuator Onto The Valve

    Risk of actuator damage due to the use of 9. Turn the stem connector nut a further unsuitable tools. quarter turn and secure this position with Î Only use tools approved by SAMSON the lock nut (10). (u AB 0100). 10. Position the stem connector clamps (A26/A27) and screw them tight.
  • Page 31 Threaded bushing Ring nut in the 'Service and Stem connector nut A26/27 Stem connector conversion work' clamps Lock nut section. Dim. A Refer to Table 5-1 Travel indicator scale Fig. 5-1: Type 3271 Pneumatic Actuator mounted on globe valve EB 8310-6 EN...

  • Page 32: Connecting The Air Supply

    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 5.2.2 Connecting the air...

  • Page 33: Start-Up

    Start-up 6 Start-up WARNING WARNING The work described in this section is only to Risk of personal injury due to exhaust air be performed by personnel qualified for the being vented. assignment accordingly. The actuator is operated with air. As a result, air is vented during operation.

  • Page 34: Preloading The Springs

    Start-up longer be correct. This may apply, for exam- − In combination with a SAMSON valve: ple, to the configuration ID or the symbol af- the actuator travel range can be adapted ter reversal of the direction of action. to a smaller valve travel range Î...

  • Page 35: Increasing The Actuator Thrust

    Start-up 5. Screw the short nuts (A21) with shims Example: Preloading is required for a bench (A25) onto the bolts (A20). Observe range of 0.4 to 2 bar. 25 % of this span is tightening torques. 0.4 bar. Therefore, the signal pressure range is shifted by 0.4 bar to 0.8 to 2.4 bar.

  • Page 36: Adapting The Travel Range

    Start-up 6.1.3 Adapting the travel At half the valve travel, the operating range is between 0.2 and 0.6 bar. range 6.2 Travel stop In some cases, the valve and actuator have different rated travels. Depending on the di- Refer to Fig. 6-2 rection of action, proceed as follows: In the version with travel stop, the maximum Direction of action: actuator stem extends and minimum actuator travel can be limited...

  • Page 37: Version With Handwheel

    Start-up 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. 6-2: Travel stop 6.3 Version with handwheel Note See Fig. 6-3 Contact our after-sales service to retrofit an...

  • Page 38: Extending The Actuator Stem Manually

    Start-up 6.3.1 Extending the actuator stem manually 1. Loosen the lock nut (A66) to unlock the handwheel (A60). 2. Turn the handwheel clockwise to extend the actuator stem. 3. To change from manual to automatic op- eration, put the handwheel into the neu- tral position by aligning the pointer (A55) with the groove on the stem con- nector (A51).

  • Page 39: Operation

    Î Wear eye and hearing protection when mation. working near the actuator. Î Add any new values to the nameplate. If necessary, contact SAMSON to obtain a new nameplate. WARNING WARNING Crush hazard arising from the moving actu- ator stem.

  • Page 40: Manual Mode (Versions With Handwheel Only)

    In Type 3271 and Type 3277 Pneumatic Ac- tuators with 700 cm² actuator area and a handwheel, the upper bench range value must not exceed 3.3 bar.

  • Page 41: Malfunctions

    Malfunctions 8 Malfunctions 8.1 Troubleshooting Malfunction Possible reasons Recommended action Actuator stem does not Actuator is blocked. Check attachment. move on demand. Unblock the actuator. WARNING! A blocked actuator (e.g. due to seizing up after remaining in the same position for a long time) can suddenly start to move uncontrollably.

  • Page 42: Emergency Action

    Malfunctions 8.2 Emergency action The plant operator is responsible for emer- gency action to be taken in the plant. EB 8310-6 EN...

  • Page 43: Service And Conversion Work

    Service and conversion work 9 Service and conversion work WARNING WARNING The work described in this section is only to Risk of personal injury due to exhaust air be performed by personnel qualified for the being vented. assignment accordingly. The actuator is operated with air. As a result, air is vented during operation.

  • Page 44: Periodic Testing

    NOTICE Risk of actuator damage due to the use of unsuitable tools. 9.2 Preparation for servicing Î Only use tools approved by SAMSON or conversion work (u AB 0100). 1. Lay out the necessary material and tools to have them ready for the intended NOTICE work.

  • Page 45: Mounting The Actuator On The Valve After Servicing Or Conversion Work

    Service and conversion work 9.4 Service work Note To remove an actuator with "stem extends" See Fig. 3-1 and Fig. 3-2 in the 'Design and fail-safe action and/or with preloaded principle of operation' section springs, a certain signal pressure must be 9.4.1 Replacing the dia- applied to the actuator (see the 'Removal' section).
  • Page 46 Service and conversion work jaws. Make sure that the actuator stem is screw of the latch using a suitable tool. not damaged. Observe tightening torques. 4. 240 cm²: undo the latch of the hose 350 and 700 cm²: turn the screw on the clamp (A6).
  • Page 47 Service and conversion work Bolting hole Recess for spring Fig. 9-2: Aligning the diaphragm 12. If necessary, preload the springs (see the 3. Take the springs (A10) out of the bottom 'Start-up' section). diaphragm case (A2). 13. Fasten the top and bottom diaphragm 4.
  • Page 48 Service and conversion work springs on the diaphragm plate must be 10. Clamp the top diaphragm case (A1) with aligned centrally between two bolting the opening facing upward into a suit- holes in the diaphragm (see Fig. 9-2). able clamping fixture. 7.

  • Page 49: Replacing The Actuator Stem Seals

    Service and conversion work 9.4.2 Replacing the actuator Type 3271 stem seals Refer to Fig. 9-3 a) Version with direction of action "actuator stem extends" 1. Lift off the top diaphragm case (A1) and remove springs (A10). 2. Pull the diaphragm plate assembly con-...
  • Page 50 Service and conversion work (A1, A2) are correctly aligned with each 8. Fill the cavity of the radial shaft seal, in other. which the spring is seated, with lubri- cant. 10. Place the springs (A10) into the bottom diaphragm case, centering them in the 9.

  • Page 51: Conversion Work

    Service and conversion work 9.5 Conversion work NOTICE See Fig. 3-1 and Fig. 3-2 in the 'Design and Malfunction due to loosened nut (A9). principle of operation' section The nut (A9) on the actuator stem serves to adjust the dimension x. 9.5.1 Reversing the direction Î...
  • Page 52 (right) Table 9-1: Values for dimension x (see Fig. 9-5) 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 9-10 EB 8310-6 EN...
  • Page 53 Service and conversion work 13. Fasten the top and bottom diaphragm NOTICE cases (A1, A2) together using the nuts Malfunction due to loosened nut (A9). (A21) and bolts (A20). Observe tighten- The nut (A9) on the actuator stem serves to ing torques.

  • Page 54: Ordering Spare Parts And Operating Supplies

    14. Unscrew the vent plug (A16) from the Contact your nearest SAMSON subsidiary bottom signal pressure connection and or SAMSON's After-sales Service for infor- screw it into the top connection (S). mation on spare parts, lubricants and tools. The actuator springs, which now push...

  • Page 55: Decommissioning

    Decommissioning 10 Decommissioning WARNING WARNING The work described in this section is only to Risk of personal injury due to exhaust air be performed by personnel qualified for the being vented. assignment accordingly. The actuator is operated with air. As a result, air is vented during operation.
  • Page 56 10-2 EB 8310-6 EN...

  • Page 57: Removal

    Removal 11 Removal WARNING WARNING The work described in this section is only to Risk of personal injury due to exhaust air be performed by personnel qualified for the being vented. assignment accordingly. The actuator is operated with air. As a result, air is vented during operation.

  • Page 58: Removing The Actuator From The Valve

    Removal 11.1 Removing the actuator 2. Loosen the long clamping nuts and bolts on the diaphragm cases evenly in a from the valve crisscross pattern to gradually relieve the 1. Undo the clamps of the stem connector spring compression. Hold the bolt head (A26/27).

  • Page 59: Repairs

    Further information on returned devices and Î Contact SAMSON's After-sales Service how they are handled can be found at for repair work. u www.samson.de > Service & Support > After-sales Service. 12.1 Returning devices to SAMSON Defective devices can be returned to SAMSON for repair.
  • Page 60 12-2 EB 8310-6 EN...

  • Page 61: Disposal

    Disposal 13 Disposal Î Observe local, national and internation- al refuse regulations. Î Do not dispose of components, lubricants and hazardous substances together with your household waste. EB 8310-6 EN 13-1...
  • Page 62 13-2 EB 8310-6 EN...

  • Page 63: Certificates

    Certificates 14 Certificates The declaration of incorporation in compli- ance with Machinery Directive 2006/42/EC for Type 3271 and Type 3277 Pneumatic Actuators with 240, 350 and 700 cm² actu- ator areas is provided on the next page. EB 8310-6 EN 14-1...
  • Page 64 14-2 EB 8310-6 EN...

  • Page 65: Annex

    15 Annex 42 Dry bearing 43 Hex screw for hanger (32) 49 Wiper ring  1) 15.1 Tightening torques, lubri- 50 Top actuator stem cants and tools 51 Stem connector 52 Screwed flange u AB 0100 for tools, tightening torques and 54 Ring lubricants 55 Pointer 56 Hex nut...
  • Page 66 20/22 20/22 41/49 20/22 20/22...
  • Page 67 20/22 26/27 EB 8310-6 EN 15-3...

  • Page 68: After-Sales Service

    You can reach our after-sales service 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 our website (www.samson.de) or in all SAMSON prod- uct catalogs.
  • Page 72 EB 8310-6 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:

3277

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