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  5. Mounting And Operating Instructions

Samson 3271 Mounting And Operating Instructions - Ation

Manual is about: In combination with an actuator/Pneumatic Actuator

Summary of 3271

  • Page 1

    Mounting and operating instructions eb 8310-5 en tr anslat ion of original instruct ions edition january 2017 type 3271 (left) and type 3277 (right) pneumatic actuators type 3271 and type 3277 pneumatic actuators actuator area: 175 and 750 cm².

  • Page 2

    2 eb 8310-5 en 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. Î for the safe and proper use of these instructions, read them carefully and ke...

  • Page 3

    Contents eb 8310-5 en 3 1 safety instructions and measures ...................................................................5 1.1 notes on possible severe personal injury .........................................................7 1.2 notes on possible personal injury .................................

  • Page 4

    4 eb 8310-5 en contents 6 operation ...................................................................................................26 6.1 throttling service ..........................................................................................26 6.2 on/off service ..............................

  • Page 5

    Eb 8310-5 en 5 safety instructions and measures 1 safety instructions and measures intended use the samson type 3271 and type 3277 actuators are designed for operating a mounted globe valve. In combination with the valve, the actuators are used to shut off the flow of liq- uids, gases or vapors in t...

  • Page 6

    6 eb 8310-5 en safety instructions and measures personal protective equipment we recommend wearing the following personal protective equipment when handling the type 3271 and type 3277 pneumatic actuators: − protective gloves when mounting or removing the actuator Î check with the plant operator for...

  • Page 7

    Eb 8310-5 en 7 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 opera...

  • Page 8

    8 eb 8310-5 en 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 insert hands or fingers into the yoke ...

  • Page 9

    Eb 8310-5 en 9 safety instructions and measures 1.3 notes on possible property damage notice ! Risk of actuator damage due to incorrectly attached slings. Î do not attach load-bearing slings to the handwheel or travel stop. Risk of actuator damage due to excessively high or low tightening torques. O...

  • Page 10: 2  Markings On The Device

    10 eb 8310-5 en markings on the device 2 markings on the device 2.1 actuator nameplate the nameplate is stuck on the diaphragm casing. It includes all details required to identify the device: 2 configuration id 3 serial number 4 actuator area 5 bench range in bar 6 bench range in psi 7 operating tra...

  • Page 11: Ation

    Eb 8310-5 en 11 design and principle of operation 3 design and principle of oper- ation the samson type 3271 and type 3277 actuators with 175 and 750 cm² actuator areas are mounted to series 240, 250, 280, and 290 valves (globe valves). 3.1 type 3271 the actuator mainly consists of two dia- phragm c...

  • Page 12: 3.2  Type 3277

    12 eb 8310-5 en design and principle of operation 3.2 type 3277 the principle of operation is the same as that of the type 3271 actuator. The type 3277 actuator is fitted with an additional yoke on the bottom diaphragm case (a2) (see fig. 3). The yoke allows the direct attachment of a positioner and...

  • Page 13

    Eb 8310-5 en 13 design and principle of operation a1 top diaphragm case a2 bottom diaphragm case a4 diaphragm a5 diaphragm plate a7 actuator stem a8 ring nut a10 spring a16 vent plug a26/27 stem connector clamp s signal pressure connection a1 a2 a4 a5 a8 a7 a26/27 s a16 a10 fig. 3: functional diagra...

  • Page 14: 3.5  Fail-Safe Action

    14 eb 8310-5 en design and principle of operation 3.5 fail-safe action when the signal pressure is reduced or the control signal fails, the fail-safe position of the control valve depends on whether the springs are installed in the top or bottom di- aphragm chamber. The listed fail-safe actions appl...

  • Page 15

    Eb 8310-5 en 15 design and principle of operation more information is available in data sheet u t 8310-1. Compliance the type 3271 and type 3277 pneumatic actuators bear the eac mark of conformity. Temperature range the permissible temperature range depends on the diaphragm material: diaphragm mater...

  • Page 16

    16 eb 8310-5 en design and principle of operation table 1: dimensions in mm and weights in kg actuator type 3271 3277 actuator area cm² 175 750 175 750 height h 78 171 78 171 h1 313 493 413 595 h4 rated fa 75 90 75 90 h4 max fa 78 93 78 93 h4 max fe 78 98 78 98 h5 – – 101 101 h6 34 34 34 34 h7 – 65 ...

  • Page 17

    Eb 8310-5 en 17 design and principle of operation dimensional drawings h h7 a2 h5 h4 h6 a Ød Ød2 Ød Ød1 h2 h1 h h4 h6 Ød2 Ød a a Ød type 3277 with 750 cm² actuator area h8 type 3271 with travel stop type 3277 (750 cm²) with handwheel.

  • Page 18: 4.1  Unpacking

    18 eb 8310-5 en measures for preparation 4 measures for preparation after receiving the shipment, proceed as fol- lows: 1. Check the scope of delivery. Compare the shipment received against the deliv- ery note. 2. Check the shipment for transportation damage. Report any damage to samson and the forw...

  • Page 19: 4.2.2  Lifting

    Eb 8310-5 en 19 measures for preparation − do not damage the corrosion protection (paint, surface coatings). Repair any damage immediately. − protect the actuator against moisture and dirt. − observe permissible temperatures (see section 3.7). 4.2.2 lifting to mount a large actuator, use lifting equ...

  • Page 20: 4.3  Storage

    20 eb 8310-5 en measures for preparation lifting the entire control valve assembly a swivel lifting hook can be screwed into the female thread on the top diaphragm case (see section 3.7 on accessories). The swivel lifting hook is designed for setting a control valve assembly upright. Î see associate...

  • Page 21

    Eb 8310-5 en 21 measures for preparation we recommend regularly checking the actu- ator and the prevailing storage conditions during long storage times. Storage instructions − when the valve and actuator are al- ready assembled, observe the storage conditions for control valves. See associ- ated val...

  • Page 22: 5  Mounting and Start-Up

    22 eb 8310-5 en mounting and start-up 5 mounting and start-up samson control valves are delivered ready for use. In special cases, the valve and actu- ator are delivered separately and must be assembled on site. The procedure to mount and start up the actuator are described in following. Risk of act...

  • Page 23

    Eb 8310-5 en 23 mounting and start-up 2 valve bonnet 8 threaded bush- ing 9 stem connector nut 10 lock nut 84 travel indicator scale a7 actuator stem a8 ring nut a20 hexagon bolt a21 hexagon nut a22 hexagon bolt (preloading) a23 hexagon bolt (preloading) a26/27 stem connector clamps dimension x 95 m...

  • Page 24

    24 eb 8310-5 en mounting and start-up 8. Depending on the direction of action: actuator stem extends apply a signal pressure that corresponds to the lower signal pressure range value to the connection on the bottom dia- phragm chamber. Actuator stem retracts apply a signal pressure that corresponds ...

  • Page 25: Thrust

    Eb 8310-5 en 25 mounting and start-up 5. Screw the short nuts (a21) with washers (a25) onto the bolts (a20). Observe tightening torques. 5.2.2 increasing the actuator thrust the thrust can only be increased in actuators with "stem extends" action. To achieve this, the springs of the actuators can be...

  • Page 26: 6  Operation

    26 eb 8310-5 en operation 6 operation crush hazard arising from moving parts. The actuator contains moving parts (actuator stem), which can injure hands or fingers if inserted into the actuator. − do not insert hands or fingers into the yoke while the valve is in operation. − while working on the ac...

  • Page 27: 6.4  Additional Notes

    Eb 8310-5 en 27 operation 6.4 additional notes concerning operation Î label actuators with reduced supply pressure with a sticker ("max. Supply pressure limited to ... Bar"). Î only apply the signal pressure to the sig- nal pressure connection (s) on the dia- phragm chamber of the actuator which doe...

  • Page 28

    28 eb 8310-5 en operation 5. Pull the diaphragm plate assembly con- sisting of the actuator stem (a7), dia- phragm plate (a5), and diaphragm (a4) out of the bottom diaphragm case (a2). 6. Clamp the bottom section of the actuator stem (a7) into a vise using protective jaws. Make sure that the actuato...

  • Page 29

    Eb 8310-5 en 29 operation 12. Clamp the top diaphragm case (a1) with the opening facing upward into a suit- able clamping fixture. 13. Place the diaphragm plate assembly con- sisting of the actuator stem (a7), dia- phragm plate (a5), and diaphragm (a4) with the actuator stem pointing upward into the...

  • Page 30: Of Action From Stem Re-

    30 eb 8310-5 en operation 6.5.2 reversal of the direction of action from stem re- tracts to stem extends 1. Lift the actuator off the valve. See sec- tion 9.2. 2. Unscrew the nuts (a21) and bolts (a20) on the diaphragm case. 3. Relieve the spring compression of actua- tors with preloaded springs (se...

  • Page 31

    Eb 8310-5 en 31 operation 18. Type 3271: remove the vent plug (a16) from the bottom signal pressure connec- tion (s) and screw it onto the top connec- tion. Type 3277: remove the vent plug (a16). The actuator springs, which now push against the diaphragm plate from above, cause the actuator stem to ...

  • Page 32: Stem Manually

    32 eb 8310-5 en operation handwheel, the upper spring range value must not exceed 3.1 bar. If you want to fit a handwheel to an actuator, contact samson's after-sales service de- partment. 6.6.1 extending the actuator stem manually 1. Loosen the lock nut (a66) to unlock the handwheel (a60). 2. Turn ...

  • Page 33: Travel)

    Eb 8310-5 en 33 operation if the minimum travel is not to be limited, thread the nuts (a70) until they reach the top end of the actuator stem (a50) and lock them in position. 6.7.2 top travel stop (maximum travel) 1. Loosen lock nut (a78) and remove cover (a73). 2. Move actuator to the required posi...

  • Page 34: 7  Servicing

    34 eb 8310-5 en servicing 7 servicing risk of bursting in the actuator. Actuators are pressurized. Improper opening can lead to actuator components bursting. Before starting any work on the actuator, de- pressurize all plant sections concerned and the actuator. Risk of personal injury due to preload...

  • Page 35

    Eb 8310-5 en 35 servicing 7.1 replacing the diaphragm version with direction of action "actuator stem extends" (fa) 1. Lift the actuator off the valve. See sec- tion 9.2. 2. Unscrew the nuts (a21) and bolts (a20) on the diaphragm case. 3. Relieve the spring compression of actua- tors with preloaded ...

  • Page 36

    36 eb 8310-5 en servicing to prevent the o-ring from being dam- aged, use a suitable tool to slide the o-ring onto the actuator stem and to po- sition it correctly. 10. Screw the nut (a33) against the com- pressor (a35). On tightening against the glued hexagon nut (with 175 cm²) or on- to the slotte...

  • Page 37: Stem Seals

    Eb 8310-5 en 37 servicing 3. Relieve the spring compression of actua- tors with preloaded springs (see sec- tion 9.3). 4. Lift off the top diaphragm case (a1). 5. Pull the diaphragm plate assembly con- sisting of the actuator stem (a7), dia- phragm plate (a5), and diaphragm (a4) out of the bottom di...

  • Page 38

    38 eb 8310-5 en servicing phragm plate (a5), and diaphragm (a4) out of the bottom diaphragm case (a2). 6. Use a suitable punch to remove the radi- al shaft seal. 7. Apply a suitable sealant and lubricant to the new radial shaft seal (a40). 8. Use a suitable mandrel to mount the ra- dial shaft seal. ...

  • Page 39: Ment

    Eb 8310-5 en 39 servicing 3. Relieve the spring compression of actua- tors with preloaded springs (see sec- tion 9.3). 4. Lift off the top diaphragm case (a1). 5. Pull the diaphragm plate assembly con- sisting of the actuator stem (a7), dia- phragm plate (a5), and diaphragm (a4) out of the bottom di...

  • Page 40: 8  Malfunctions

    40 eb 8310-5 en 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 act...

  • Page 41: Sembly

    Eb 8310-5 en 41 decommissioning and disassembly 9 decommissioning and disas- sembly risk of bursting in the actuator. Actuators are pressurized. Improper opening can lead to actuator components bursting. Before starting any work on the actuator, de- pressurize all plant sections concerned and the ac...

  • Page 42: 9.4  Disposal

    42 eb 8310-5 en decommissioning and disassembly 9.4 disposal Î observe local, national, and internation- al refuse regulations. Î do not dispose of components, lubri- cants, and hazardous substances togeth- er with your other household waste. 2 valve bonnet 9 stem connector nut 10 lock nut a1 top di...

  • Page 43: 10 Annex

    Eb 8310-5 en 43 annex 10 annex 10.1 after-sales service contact samson's after-sales service de- partment for support concerning service or repair work or when malfunctions or defects arise. E-mail you can reach the after-sales service de- partment at aftersalesservice@samson.De. Addresses of samson...

  • Page 44: 10.2 Spare Parts

    44 eb 8310-5 en annex 10.2 spare parts 1 top diaphragm case 2 bottom diaphragm case 4 diaphragm 5 diaphragm plate 7 actuator stem 8 ring nut 9 hexagon nut 1) 10 spring (external) 11 spring (internal) 12 spring (internal) 16 vent plug 17 o-ring 20 hexagon bolt 21 hexagon nut 22 hexagon bolt (preloadi...

  • Page 45

    Eb 8310-5 en 45 2 300 4 5 10 11 12 78 101 32 22 20 23 21 25 8 41 42 42 40 35 1 16 101 100 33 36 17 7 34 75 16 70 70 73 100 77 34 36 76 17 7 34 27 29 300

  • Page 46

    46 eb 8310-5 en.

  • Page 47

    Eb 8310-5 en 47.

  • Page 48: Eb 8310-5 En

    Samson ag · mess- und regeltechnik weismüllerstraße 3 · 60314 frankfurt am main, germany phone: +49 69 4009-0 · fax: +49 69 4009-1507 samson@samson.De · www.Samson.De eb 8310-5 en 2017-03-15 · engl ish.