Samson 3275A Mounting And Operating Instructions
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Samson 3275A Mounting And Operating Instructions

Pneumatic piston actuator
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EB 8314-1 EN
Translation of original instructions
Type 3275A Pneumatic Piston Actuator
Actuator area: 314, 380, 490 and 804 cm²
Edition March 2021

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Summary of Contents for Samson 3275A

  • Page 1 EB 8314-1 EN Translation of original instructions Type 3275A Pneumatic Piston Actuator Actuator area: 314, 380, 490 and 804 cm² Edition March 2021...
  • 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

    Contents Safety instructions and measures ..............1-1 Notes on possible severe personal injury ............1-4 Notes on possible personal injury ..............1-4 Notes on possible property damage .............1-5 Warnings on the device ................1-6 Markings on the device ................2-1 Actuator nameplate ..................2-1 Design and principle of operation ...............3-1 Fail-safe action ...................3-2 Versions .....................3-2 Accessories ....................3-3...
  • Page 4 Ordering spare parts and operating supplies ..........9-4 Decommissioning ..................10-1 Removal ....................11-1 11.1 Removing the actuator from the valve ............11-1 Repairs ....................12-1 12.1 Returning devices to SAMSON ..............12-1 Disposal ....................13-1 Annex......................14-1 14.1 Tightening torques, lubricants and tools ............14-1 14.2 Spare parts ....................14-1 14.3...

  • Page 5: Safety Instructions And Measures

    SAMSON. 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 6 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 7 Safety instructions and measures Referenced standards, directives and regulations According to the ignition risk assessment performed in accordance with Clause 5.2 of ISO 80079-36, 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 Directive 2014/34/EU.

  • Page 8: Notes On Possible Severe Personal Injury

    Safety instructions and measures 1.1 Notes on possible severe personal injury DANGER Risk of bursting in the actuator. Actuators are pressurized. Improper opening can lead to actuator components burst- ing. Î Before starting any work on the actuator, depressurize all plant sections affected and the actuator.

  • Page 9: Notes On Possible Property Damage

    Î Observe the specified tightening torques (u AB 0100). 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). EB 8314-1 EN...

  • Page 10: 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 surfaces. Î Only use lubricants approved by SAMSON (u AB 0100). 1.4 Warnings on the device Warning...

  • Page 11: Markings On The Device

    5 Actuator area 6 Connecting thread 7 Rated travel in mm 8 Country of origin 9 Permissible ambient temperature 10 Max. permissible pressure p in bar and psi Base 3275A Name- S/N: plate Mat: Fig. 2-1: Nameplate of Type 3275A Actuator EB 8314-1 EN...
  • Page 12 EB 8314-1 EN...

  • Page 13: Design And Principle Of Operation

    (7) electropneumatic positioner. See Fig. 3-1. with the plug stem of the globe valve. 4 Cover 6 Cylinder barrel 7 Piston stem 9 Piston 10 Base 11 Linkage 44 Yoke Fig. 3-1: Type 3275A Actuator (314, 380 and 490 cm²) EB 8314-1 EN...

  • Page 14: Fail-Safe Action

    3.2 Versions The actuator with 804 cm² area does need a yoke (see Fig. 3-2). The valve accessories Type 3275A Pneumatic Piston Actuator with are mounted over the NAMUR interface. 314, 380, 490 or 804 cm² actuator area: Refer to the mounting and operating instruc- −...

  • Page 15: Accessories

    However, the eyebolt and the swivel hoist must not be used to vertically lift the entire control valve assembly (see the 'Shipment and on-site transport' section). Table 3-1: Technical data Version Type 3275A Actuator area cm² Supply Max. 6 bar 6 bar 6 bar...
  • Page 16 Ring bolt C15/A2 Piston stem guide PTFE/steel Piston guide band PTFE Seals –60 to +80 °C VMQ/TT-PU Table 3-3: Dimensions and weights Actuator Type 3275A Actuator area cm² H1 (including eyebolt) – H3 (stem retracted) Weight (standard version) Weight (heavy-duty version)
  • Page 17 Design and principle of operation Dimensional drawings Ø 16 Ø 22 Ø 30 Ø 60 Type 3275A, version with 314, 380 or 490 cm² Type 3275A, version with 804 cm² EB 8314-1 EN...
  • Page 18 EB 8314-1 EN...

  • Page 19: Shipment And On-Site Transport

    Risk of injury due to incorrect lifting without damage. Report any damage to the use of lifting equipment. SAMSON and the forwarding agent Lifting the actuator without the use of lifting (refer to delivery note). equipment may lead to injuries (back injury 3.

  • Page 20: Transporting The Actuator

    Shipment and on-site transport − Observe permissible temperatures (see NOTICE 'Technical data' in the 'Design and prin- Risk of actuator damage due to incorrectly ciple of operation' section). attached slings. The eyebolt on the base is only intended for 4.3.2 Lifting the actuator mounting and removing the actuator as well as lifting the actuator without valve.
  • Page 21 Shipment and on-site transport 3. Carefully lift the actuator. Check whether 5. Mount the actuator onto the valve (see the lifting equipment and accessories can the 'Installation' section). bear the weight. 6. Remove slings after mounting and re- 4. Move the actuator at an even pace to the place the cover on the eyebolt (see mounting site.

  • Page 22: Storing The Actuator

    − Do not place any objects on the actuator. storage. Î Observe the storage instructions. Î Avoid long storage times. Our after‑sales service can provide more de‑ Î Contact SAMSON in case of different tailed storage instructions on request. storage conditions or longer storage times. Note We recommend regularly checking the actu‑...

  • Page 23: Installation

    5.2 Mounting the device Observe the specified torques when tighten‑ ing actuator components. Excessive tighten‑ Depending on the version, SAMSON control ing torques lead to parts wearing out more valves are either delivered with the actuator quickly. Parts that are not tightened far already mounted on the valve or the valve enough may loosen.

  • Page 24: Mounting The Actuator Onto The Valve

    Risk of actuator damage due to the use of tightening torque of 150 Nm. unsuitable tools. 7. Apply a signal pressure to the actuator to Î Only use tools approved by SAMSON extend the piston stem. (u AB 0100). 8. Screw on the stem connector nut by hand until it touches the piston stem.
  • Page 25 Installation Yoke Piston stem Ring nut Stem connector clamps Travel indicator scale Stem connector nut Lock nut Valve bonnet Fig. 5-1: Type 3275A Piston Actuator with 314 cm² actuator area mounted on a PSA valve EB 8314-1 EN...
  • Page 26 EB 8314-1 EN...

  • Page 27: Start-Up

    Start-up 6 Start-up See the 'Operation' section EB 8314-1 EN...
  • Page 28 EB 8314-1 EN...

  • Page 29: Operation

    Before working on the actuator: mation. Î Depressurize all plant sections concerned Î Add any new values to the nameplate. If and the actuator. Release any stored en‑ necessary, contact SAMSON to obtain a ergy. new nameplate. 7.1 Supply pressure in closed- WARNING...
  • Page 30 EB 8314-1 EN...

  • Page 31: Malfunctions

    Malfunctions 8 Malfunctions Read hazard statements, warnings and caution notes in the 'Safety instructions and mea- sures' section. 8.1 Troubleshooting Malfunction Possible reasons Recommended action Piston stem does not Actuator is blocked. Check attachment. move on demand. Remove the blockage. WARNING! A blocked actuator (e.g.
  • Page 32 EB 8314-1 EN...

  • Page 33: Servicing

    Risk of personal injury due to exhaust air Î Add any new values to the nameplate. If being vented. necessary, contact SAMSON to obtain a The actuator is operated with air. As a result, new nameplate. air is vented during operation.

  • Page 34: Periodic Testing

    NOTICE Risk of actuator damage due to the use of unsuitable tools. 9.2 Preparing the valve for Î Only use tools approved by SAMSON service work (u AB 0100). 1. Lay out the necessary material and tools to have them ready for the intended NOTICE work.
  • Page 35 450-6 450-1 O-ring 450-2 Lip seal 450-3 Piston guide band 450-4 Piston rod seal 450-5 Plain bearing 450-6 Wiper ring 450-1 450-2 450-3 450-1 450-4 Fig. 9-1: Type 3275A · Version with 450-6 314/380/490 cm² (top) 450-5 and 804 cm² (bottom) EB 8314-1 EN...

  • Page 36: Replacing Parts Subject To Wear

    Servicing 9.4.1 Replacing parts subject 14. Carefully slide the cover (4) or bottom cover (2) over the piston rod (7). to wear 15. Screw the tie rods (12) from side with the 1. Unscrew collar nuts (11) on the cylinder piston rod with the short thread side into base.

  • Page 37: Ordering Spare Parts And Operating Supplies

    Servicing 9.6 Ordering spare parts and operating supplies Contact your nearest SAMSON subsidiary or SAMSON's After-sales Service for infor- mation on spare parts, lubricants and tools. Spare parts See Annex for details on spare parts. Lubricant See document u AB 0100 for details on suitable lubricants.
  • Page 38 EB 8314-1 EN...

  • Page 39: Decommissioning

    Decommissioning 10 Decommissioning WARNING WARNING The work described in this section is only to Crush hazard arising from the moving be performed by personnel appropriately actuator stem. qualified to carry out such tasks. Î Do not insert hands or finger into the yoke while the air supply is connected to the actuator.
  • Page 40 10-2 EB 8314-1 EN...

  • Page 41: Removal

    Removal 11 Removal The work described in this section is only to be performed by personnel appropriately qualified to carry out such tasks. Before removing the valve, make sure the fol- lowing conditions are met: − The actuator is put out of operation (see the 'Decommissioning' section).
  • Page 42 Removal Yoke Piston stem Ring nut Stem connector clamps Travel indicator scale Stem connector nut Lock nut Valve bonnet Fig. 11-1: Type 3275A Piston Actuator with 314 cm² actuator area mounted on a PSA valve 11-2 EB 8314-1 EN...

  • Page 43: Repairs

    Î Do not perform any repair work on your side of your shipment so that the docu- own. ments are clearly visible. Î Contact SAMSON's After‑sales Service 4. Send the shipment to the address given for repair work. on the RMA.
  • Page 44 12-2 EB 8314-1 EN...

  • Page 45: 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 8314-1 EN 13-1...
  • Page 46 13-2 EB 8314-1 EN...

  • Page 47: Annex

    Annex 14 Annex 14.1 Tightening torques, lubricants and tools u AB 0100 for tools, tightening torques and lubricants 14.2 Spare parts Top cover (804 cm²) Set of parts subject to wear Bottom cover (804 cm²) 450-1 O-ring (2x) Bushing 450-2 Lip seal (2x) Cover (314, 380 and 490 cm²) 450-3 Piston guide band Cylinder barrel...
  • Page 48 Annex 450-1 450-2 450-3 450-1 450-2 450-2 450-3 450-1 450-2 450-4 450-4 450-5 450-5 450-6 450-1 450-6 26/27 Type 3275A Actuator (314, 380 and 490 cm²) Type 3275A Actuator (804 cm²) 14-2 EB 8314-1 EN...

  • Page 49: After-Sales Service

    You can reach our after-sales service at aftersalesservice@samsongroup.com. 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.samsongroup.com) or in all SAMSON product catalogs.
  • Page 50 14-4 EB 8314-1 EN...
  • Page 52 EB 8314-1 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...

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