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Samson 3372 Mounting and operating instructions - 4.3  Changing The Type of

Other manuals for 3372: User Manual
Manual is about: Electropneumatic Actuator Versions with 120 and 350 cm and Type 3725 Positioner EB 8313-3 EN

Summary of 3372

  • Page 1

    Mounting and operating instructions eb 8313-3 en edition july 2013 type 3372 electropneumatic actuator versions with 120 and 350 cm² and type 3725 positioner globe valve with type 3372 electropneumatic actuator versions with 120 cm² and 350 cm² effective diaphragm areas.

  • Page 2

    Definition of signal words danger! Hazardous situations which, if not avoided, will result in death or seri- ous injury warning! Hazardous situations which, if not avoided, could result in death or seri- ous injury notice property damage message or mal- function note: additional information tip: rec...

  • Page 3

    Contents eb 8313-3 en 3 1 general safety instructions .............................................................................7 2 design and principle of operation ..................................................................8 2.1 versions .....................................................

  • Page 4

    4 eb 8313-3 en contents 6 maintenance of type 3372 (120 cm²) ...........................................................28 6.1 removing the actuator ..................................................................................28 6.1.1 releasing the spring preloading ...............................

  • Page 5

    Eb 8313-3 en 5 contents 9 nameplate ..................................................................................................40 10 dimensions and weights ..............................................................................40 11 customer inquiries .....................................

  • Page 7

    Eb 8313-3 en 7 general safety instructions 1 general safety instructions − the actuator is to be mounted, started up or operated only by trained and experienced personnel familiar with the product. According to these mounting and operating instruc- tions, trained personnel refers to individuals who ...

  • Page 8: Ation

    8 eb 8313-3 en design and principle of operation 2 design and principle of oper- ation thetype 3372electropneumaticactuatoris mainly used for attachment to series v2001 valves: − type 3321 globe valve − type 3323 three-way valve − type 3531globevalveforheattransfer oil − type 3535three-wayvalveforhe...

  • Page 9

    Eb 8313-3 en 9 design and principle of operation 1 15 27 25 20 21 4 5 10 40 42 41 7 33 60 54 2 61 1/2 diaphragm case 4 diaphragm 5 diaphragm plate 7 actuator stem 10 compression spring 15 collar nut 20 hexagonbolt 21 hexagonnut 25 washer 27 compressor 33 rod 40 radial shaft seal 41 wiper ring 42 pla...

  • Page 10

    10 eb 8313-3 en design and principle of operation table 1: attachment of type 3372 actuator to series v2001 valves 120 cm² 350 cm² stem extends stem retracts stem extends stem retracts stem extends stem retracts 2.1 to 3.3 1.4 to 2.3 0.4 to 1.4 1.4 to 2.3 2.1 to 2.7 1.5 to 2.1 2.2 to 3.8 1.5 to 2.7 ...

  • Page 11

    Eb 8313-3 en 11 design and principle of operation table 1: attachment of type 3372 actuator to series v2001 valves 120 cm² 350 cm² stem extends stem retracts stem extends stem retracts stem extends stem retracts 2.1 to 3.3 1.4 to 2.3 0.4 to 1.4 1.4 to 2.3 2.1 to 2.7 1.5 to 2.1 2.2 to 3.8 1.5 to 2.7 ...

  • Page 12: Action „Actuator Stem

    12 eb 8313-3 en design and principle of operation 2.2 signal pressure routing thesignalpressureofthetype 3725posi- tioner (62) is routed through the correspond- ing port in the support element (61). 2.2.1 version with fail-safe action „actuator stem extends“ (fa) the signal pressure in the actuator ...

  • Page 13: 2.3  Fail-Safe Action

    Eb 8313-3 en 13 design and principle of operation 33 61 62 33 rod 61 support element 62 type 3725 positioner fig. 2: signal pressure routing for "actuator stem extends" (fa) 61 62 pst 61 support element 62 type 3725 positioner fig. 3: signal pressure routing for "actuator stem retracts" (fe) 2.3 fai...

  • Page 14: 2.4  Technical Data

    14 eb 8313-3 en application 2.4 technical data type 3372 actuator diaphragm area 120 cm² 350 cm² bench range in bar 0.4 to 1.4 1.4 to 2.3 2.1 to 3.3 1.5 to 2.1 2.1 to 2.7 1.5 to 2.7 2.2 to 3.8 fail-safe action stem retracts stem retracts stem extends stem extends stem retracts stem extends stem retr...

  • Page 15: 3.1  Throttling Service

    Eb 8313-3 en 15 application 3.1 throttling service thetype 3372pneumaticactuatorisde- signed for a maximum supply pressure of 6 barwhenusedforthrottlingservice. 3.2 on/off service to prevent the actuator from being dam- aged, the supply pressure must not exceed the upper spring range value by more t...

  • Page 16: 4  Mounting On The Valve

    16 eb 8313-3 en mounting on the valve 4 mounting on the valve the valve and actuator are delivered sepa- rately and must be assembled on site. If the positioner is already mounted on the actua- tor (on the support element), it must be re- moved before the actuator can be mounted onto the valve. 4.1 ...

  • Page 17

    Eb 8313-3 en 17 mounting on the valve 33 35 59 54 34 33 rod 34 valve bonnet 35 central nut 54 hexnut(for33) 59 crossbeam fig. 4: mounting using central nut – type 3372-120 cm².

  • Page 18: 4.1.2  Mounting Using Rods

    18 eb 8313-3 en mounting on the valve 4.1.2 mounting using rods see table 1 on page 10 for form c the type 3372 actuator (120 cm²) is suit- ableformountingontype 3321valvesin dn 65to100with15 mmtravel. Therodendsarefittedwithadapterbush- ings (33.1) to provide a threaded attach- ment. Additionally, ...

  • Page 19

    Eb 8313-3 en 19 mounting on the valve 33 60 54 34 33 rod 34 valve bonnet 54 hexnut(for33) 60 plate fig. 5: mounting on rods - type 3372 (350 cm²).

  • Page 20: 4.3  Changing The Type of

    20 eb 8313-3 en mounting on the valve 4.3 changing the type of mounting atype3372actuator(120 cm²)whichhas already been mounted using a central nut can also be mounted later to a valve bonnet suitable for mounting using rods. This re- quires a plate (60) and two adapter bush- ings (33.1) with hexago...

  • Page 21

    Eb 8313-3 en 21 mounting on the valve 33 35 59 54 34 33 rod 34 valve bonnet 35 central nut 54 hexnut(for33) 59 crossbeam fig. 6: mounting using central nut – type 3372 (120 cm²) 33 60 54 34 33.1 33 rod 33.1 adapter bushing 34 valve bonnet 54 hexnut(for33) 60 plate fig. 7: mounting on rods - type 337...

  • Page 22: Positioner

    22 eb 8313-3 en mounting on the valve 4.4 attaching the type 3725 positioner fig. 8 if the positioner (62) is to be used with an actuator with fail-safe action „actuator stem extends“ (fa), the signal pressure output must be open. See associated mounting and operating instructions u eb 8394 for type...

  • Page 23

    Eb 8313-3 en 23 mounting on the valve 54 62.1 pst 62.2 60 62 61 33 65 61 support element 62 type 3725 positioner 62.1 follower pin 62.2 lever fig. 8: attaching the type 3725 positioner.

  • Page 24: Limit Switch

    24 eb 8313-3 en mounting on the valve fig. 9: type 4744-2 limit switch attached to type 3323/3372 control valve 4.5 attaching the type 4744-2 limit switch fig. 9 the optional limit switch is mounted using a clamping plate to the free rod (33) opposite the positioner. Î remove the stem connector betw...

  • Page 25: 5  Operation

    Eb 8313-3 en 25 operation 5 operation these mounting and operating instructions describe the mechanical operation of the ac- tuator. The operation of the type 3725 posi- tioner is described in the mounting and op- erating instructions u eb 8394.Thesein- structions describe start-up and the settings ...

  • Page 26: Travel

    26 eb 8313-3 en operation Î reattach the cover (100) and tighten the lock nut (101). 5.1.2 limiting the maximum travel Î undo lock nut (101) and remove cover (100). Î move actuator to the position of maxi- mum travel. Î screw back on the cover (100) until it reaches the stop point and retighten the ...

  • Page 27

    Eb 8313-3 en 27 operation 73 78 76 75 72 40 40 radial shaft seal 72 shaft 73 cover 75 pin 76 sleeve 78 washer fig. 11: manual override for type 3372 (120 cm²).

  • Page 28: (120 Cm²)

    28 eb 8313-3 en maintenance of type 3372 (120 cm²) 6 maintenance of type 3372 (120 cm²) fig. 12 if the actuator does function properly, it may be necessary to replace parts subject to wear note: we recommend the following tools and resources for maintenance: − lubricant: order no. 8152-0043 − thread...

  • Page 29

    Eb 8313-3 en 29 maintenance of type 3372 (120 cm²) 1 10 15 5.1 40 42 41 7 1 5 5.1 15 21 10 4 40 42 41 7 21 2 version with fail-safe action: "stem retracts" version with fail-safe action: "stem extends" 1/2 diaphragm case 4 diaphragm 5 diaphragm plate 5.1 diaphragm plate (small) 7 actuator stem 10 co...

  • Page 30: Plate Assembly

    30 eb 8313-3 en maintenance of type 3372 (120 cm²) 6.3 dismantling the diaphragm plate assembly the diaphragm plate assembly only needs to be dismantled if the diaphragm is damaged and needs replacing as a result. Î clamptheactuatorstem(7,fig. 12)ina suitable appliance. Remove the components in the ...

  • Page 31: Ring and Plain Bearings

    Eb 8313-3 en 31 maintenance of type 3372 (120 cm²) 6.5.1 radial shaft seal, wiper ring and plain bearings Î use a suitable mandrel or hook to re- move the radial shaft seal (40). Î apply lubricant (8152-0043) to the new radial shaft seal and carefully install it, making sure the seal lip does not ge...

  • Page 32: 6.5.3  Version With Manual

    32 eb 8313-3 en maintenance of type 3372 (120 cm²) 6.5.3 version with manual override fig. 14 the type 3372 actuator (120 cm²) can op- tionallyfittedwithamanualoverride.Addi- tionally, a radial shaft seal and a dry bear- ing are located in the top diaphragm case (1). Î undo the two washers (78) and ...

  • Page 33: 6.6  Mounting The Actuator

    Eb 8313-3 en 33 maintenance of type 3372 (120 cm²) 6.6 mounting the actuator fig. 15 6.6.1 version with fail-safe action „actuator stem extends“ (fa) Î clamp the bottom diaphragm case (2) into a suitable appliance. Î carefully insert the ready-assembled dia- phragm plate assembly through the radi- a...

  • Page 34: 6.7  Mounting On The Valve

    34 eb 8313-3 en maintenance of type 3372 (120 cm²) Î if the springs are to be preloaded, insert the long bolts (20) through the holes used previously on the top diaphragm case. Mount long hex nuts (21) each with one washer until they rest on the dia- phragm case. Î holdtheboltheadsstationaryandtight...

  • Page 35

    Eb 8313-3 en 35 maintenance of type 3372 (120 cm²) 1 10 15 5.1 40 42 41 7 1 5 5.1 15 21 10 4 40 42 41 7 21 2 version with fail-safe action: "stem retracts" version with fail-safe action: "stem extends" 1/2 diaphragm case 4 diaphragm 5 diaphragm plate 5.1 diaphragm plate (small) 7 actuator stem 10 co...

  • Page 36: (350 Cm²)

    36 eb 8313-3 en maintenance of type 3372 (350 cm²) 7 maintenance of type 3372 (350 cm²) fig. 16 parts subject to wear may need to be re- placed if the actuator does not work proper- ly. Note we recommend the following tools and resources for maintenance: − socket wrench (width across flats 27) for 3...

  • Page 37

    Eb 8313-3 en 37 maintenance of type 3372 (350 cm²) 1 15 27 25 20 21 4 5 10 40 42 41 7 33 60 54 2 61 version with fail-safe action: "stem retracts" version with fail-safe action: "stem extends" 1/2 diaphragm case 4 diaphragm 5 diaphragm plate 7 actuator stem 10 compression spring 15 collar nut 20 hex...

  • Page 38: Plate Assembly

    38 eb 8313-3 en maintenance of type 3372 (350 cm²) 7.3 dismantling the diaphragm plate assembly the diaphragm plate assembly only needs to be dismantled if the diaphragm is damaged and needs replacing as a result. Î use a suitable appliance, e.G. A long socketwrench(widthacrossflats27)to clamp the a...

  • Page 39: Bearing

    Eb 8313-3 en 39 reversing the direction of action (fail-safe action) 7.5 replacing seals and plain bearing the radial shaft seal (40) and the wiper ring (41) and the plain bearing (42), if neces- sary, must be renewed due to wear or dur- ing repair work. 7.5.1 radial shaft seal, wiper ring and plain...

  • Page 40: 9  Nameplate

    40 eb 8313-3 en nameplate 9 nameplate the plastic nameplates for the actuators are stuck on the diaphragm casing. They include all details required to identify the actuator: − manufacturer and type number (samson 3372) − configurationid(var.-id)asbarcode and plain text − serial number − country of o...

  • Page 41: 11  Customer Inquiries

    Eb 8313-3 en 41 customer inquiries 11 customer inquiries please submit the following details written on the nameplate: − type designation and serial number − effective area in cm² − bench range (spring range) in bar − actuator version and fail-safe action − your e-mail address please send your inqui...

  • Page 42

    42 eb 8313-3 en.

  • Page 43

    Eb 8313-3 en 43.

  • Page 44: Eb 8313-3 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 8313-3 en 2016-02-04 · engl ish.