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

Pneumatic piston actuator
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Type 3275 Pneumatic Piston Actuator
Actuator area: 314, 490, and 804 cm²
Mounting and
Operating Instructions
EB 8314 EN
Edition February 2017

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Summary of Contents for Samson 3275

  • Page 1 Type 3275 Pneumatic Piston Actuator Actuator area: 314, 490, and 804 cm² Mounting and Operating Instructions EB 8314 EN Edition February 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

    Contents Safety instructions and measures ..............5 Notes on possible severe personal injury ............7 Notes on possible personal injury ..............7 Notes on possible property damage ..............8 Markings on the device .................9 Actuator nameplate ..................9 Design and principle of operation ..............10 Fail-safe action ....................11 Versions ......................12 Technical data .....................12 Measures for preparation ................14...
  • Page 4 Contents Appendix ....................31 10.1 After-sales service ..................31 EB 8314 EN...

  • Page 5: Safety Instructions And Measures

    SAMSON must be con- tacted. 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 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 Î For connection to the equipotential bonding system, observe the requirements specified in section 6.4 of EN 60079-14 (VDE 0165 Part 1). Referenced documentation The following documents apply in addition to these mounting and operating instructions: − Mounting and operating instructions for the mounted valve −...

  • Page 8: Notes On Possible Property Damage

    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. Î Only use lubricants approved by SAMSON (u AB 0100). EB 8314 EN...

  • Page 9: Markings On The Device

    4 Permissible temperature range 5 Configuration ID 6 Serial number 7 Bar code 8 Date of manufacture (month and year) SAMSON 3275 Supply Stroke Temperature Made in Var-ID Serial no. Germany Base Nameplate Rivet Fig. 1: Nameplate of Type 3275 Actuator EB 8314 EN...

  • Page 10: Design And Principle Of Operation

    (A1) with the plug stem of the globe valve. Piston rod Yoke Piston rod seal Plain bearing Base O-ring Piston seal Piston guide band Piston Cover Signal pressure connection Fig. 2: Type 3275 Actuator (314 and 490 cm²) EB 8314 EN...

  • Page 11: Fail-Safe Action

    A defined final position is not reached when the signal pressure is reduced or the air supply fails. Piston rod Piston rod seal Plain bearing Base Piston seal Piston guide band Piston A10 Cover Signal pressure connection Fig. 3: Type 3275 Actuator (804 cm²) EB 8314 EN...

  • Page 12: Versions

    Design and principle of operation 3.2 Versions 3.3 Technical data Type 3275 Pneumatic Piston Actuator with The nameplate provide information on the 314, 490 or 804 cm² actuator area: actuator version (see section 2.1). − Standard version Note Base and cover are coated with an alu- minum alloy (3.3547, anodized).
  • Page 13 Air connection G  G ½ G ½ Weight Different dimensions may arise with the special version (e.g. for low temperatures) Dimensional drawings £ Ø16 Ø22 Ø30 Ø60 Type 3275 with 314 and 490 cm² actuator areas Type 3275 with 804 cm² actuator area EB 8314 EN...

  • Page 14: Measures For Preparation

    Report any damage to − The lifting eyelets on the cover are intend- SAMSON and the forwarding agent ed for mounting and removing the actuator (refer to delivery note). as well as lifting the actuator without valve.

  • Page 15: Lifting

    − Avoid long storage times. The lifting eyelets on the cover are intended − Contact SAMSON in case of different stor- for mounting and removing the actuator as age conditions or long storage periods. well as lifting the actuator without valve. Do...
  • Page 16 Measures for preparation Fig. 4: Lifting points on the actuator Fig. 5: Lifting points on the control valve (example) − Do not damage the corrosion protection Note (paint, surface coatings). Repair any We recommend regularly checking the actu- damage immediately. ator and the prevailing storage conditions −...

  • Page 17: Preparation For Installation

    Measures for preparation SAMSON's After-sales Service department can provide more detailed storage instruc- tions on request. 4.4 Preparation for installation Proceed as follows: Î Check the actuator for damage. Î Check to make sure that the type designation, material and temperature range of the actuator match the ambient conditions (temperatures etc.).

  • Page 18: Mounting And Start-Up

    Mounting and start-up 5 Mounting and start-up SAMSON control valves are delivered ready The valve and actuator are assembled with for use. In special cases, the valve and actu- special attention paid to the actuator's bench ator are delivered separately and must be range and direction of action.
  • Page 19 Mounting and start-up Valve bonnet Stem connector nut Lock nut Travel indicator scale Piston rod A26/27 Stem connector clamps Yoke A208 Ring nut A208 A26/27 Fig. 6: Type 3275 Piston Actuator with 490 cm² actuator area mounted on a Type 3241-PSA Valve EB 8314 EN...

  • Page 20: Additional Fittings

    Mounting and start-up 5.2 Additional fittings Valve accessories Valve accessories are either mounted on the yoke (314 and 490 cm²) or over the NAMUR interface (804 cm² only). Refer to the mounting and operating instruc- tions of the valve accessories to be mounted for more details on their attachment and the accessories required.

  • Page 21: Operation

    Operation disturbed by a blocked piston rod. Do not impede the movement of the piston rod by inserting objects into their path. Supply pressure The Type 3275 Pneumatic Piston Actuator is designed for a maximum supply pressure of 6 bar. EB 8314 EN...

  • Page 22: Servicing

    Servicing 7 Servicing Only use lubricants approved by SAMSON (u AB 0100). DANGER Risk of bursting in the actuator. Note Actuators are pressurized. Improper opening − The product warranty becomes void if can lead to actuator components bursting. service or repair work not described in...
  • Page 23 Servicing Piston rod Piston rod seal Plain bearing Base O-ring Cylinder barrel Piston seal Piston guide band Piston Cover Tie rod Damping seal Fig. 7: Type 3275 · Version with 314/490 cm² (top) and 804 cm² (bottom) EB 8314 EN...
  • Page 24 Servicing 5. Pull the piston rod (A1) and piston (A9) 13. Center the cylinder barrel (A6) on the from the cylinder barrel (A6). cover (A10). 6. Separate the cylinder barrel (A6) and 14. Insert the piston (A9) with piston rod cover (A10).
  • Page 25 Servicing Piston rod Piston rod seal Plain bearing Base O-ring Cylinder barrel Piston seal Piston guide band Piston Cover Fig. 9: Special version down to –40 °C (314 cm²) Washer Bolt Ring nut EB 8314 EN...
  • Page 26 Servicing Piston rod Piston rod seal Plain bearing Base O-ring Cylinder barrel Piston seal Piston guide band Piston Cover Fig. 10: Special version down to –40 °C (490 cm²) Washer Bolt Ring nut EB 8314 EN...

  • Page 27: Leak-Testing The Actuator

    > Contact. 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 Details on spare parts are available on re- quest.

  • Page 28: 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 Piston rod does not move on Actuator is blocked.
  • Page 29 Servicing EB 8314 EN...

  • Page 30: Decommissioning And Disassembly

    Decommissioning and disassembly 9 Decommissioning and 7. Fasten the lock nut (10) and stem con- nector nut (9) on the valve. disassembly 9.3 Disposal DANGER Î Observe local, national, and internation- Risk of bursting in the actuator. al refuse regulations. Actuators are pressurized.
  • Page 31 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 32 SAMSON AG · MESS- UND REGELTECHNIK Weismüllerstraße 3 · 60314 Frankfurt am Main, Germany Phone: +49 69 4009-0 · Fax: +49 69 4009-1507 EB 8314 EN samson@samson.de · www.samson.de...

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