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PMV P36C AND P41C
POSITIONERS

USED WITH DeZURIK PNEUMATIC
ACTUATORS

Instruction

D10327

August 2012

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Summary of Contents for PMV P36C

Page 1: ...PMV P36C AND P41C POSITIONERS USED WITH DeZURIK PNEUMATIC ACTUATORS Instruction D10327 August 2012...

Page 2: ...ne material and take appropriate safety precautions Always wear suitable protection when dealing with hazardous pipeline materials Handle valves that have been removed from service with the assumption...

Page 3: ...ront Cover and Indicator Cover 6 6 7 7 Reversing the Positioner Action 8 Cam Adjustment 9 Zero and Span Adjustment Span Adjustment Zero Adjustment 9 9 Resetting the Range Spring 10 Indicator Adjustmen...

Page 4: ...in 0 43 SCFM 13 6 nl min 0 48 SCFM 0 6 MPa 87 psi 20 nl min 0 71S CFM 22 nl min 0 78 SCFM 0 8 MPa 116 psi 27 8 nl min 0 98 SCFM 30 5 nl min 1 08 SCFM 1 MPa 145 psi 35 7 nl min 1 26 SCFM 39 nl min 1 38...

Page 5: ...vel is determined by the position of the cam 5 which is secured to the spindle 6 The spindle is connected to the actuator shaft thus providing the feedback from the actuator and valve See Figure 1 Whe...

Page 6: ...d or similar to a dew point of at least 18 degrees F 10 C below lowest ambient temperature A 30 micron or finer filter regulator should be installed as close to the positioner as possible to ensure pr...

Page 7: ...nit accepts 1 2 NPT or PG 13 5 cable gland See Figure 10E for wiring connections Maximum recommended wire size is 16 AWG Front Cover and Indicator Cover The front cover is secured to the pneumatic pos...

Page 8: ...ir pressure and the input signal pressure 2 On double acting cylinders disconnect and reverse the two connections to positioner ports C1 and C2 For spring return cylinders proceed to step 3 3 Remove t...

Page 9: ...ut 2 4 Install and adjust the indicator and install cover Zero and Span Adjustment Span Adjustment Span is adjusted with the yellow upper thumb wheel 1 located on the feedback spring See Figure 6 To a...

Page 10: ...w so that 1 or 3 threads are showing depending on spring style 7 Reinstall the range spring assembly Indicator Adjustment To adjust the indicator remove front cover and pull the indicator upward until...

Page 11: ...Other ranges are available on request Positioners installed in hazardous areas can be ignition sources Ensure positioners used in hazardous areas have proper fire explosion ratings Filter The filter...

Page 12: ...fire explosion ratings 1 Turn off the supply air and remove the connecting block 1 gauge or plug from port IP and the existing gasket 4 between the positioner 2 and connecting block See Figure 9 2 Car...

Page 13: ...O rings are in the correct places See Figure 10b 7 Tighten the I P unit with the three screws See Figure 10a Figure 10 I P Unit On Positioner 8 Connect input signal cable to port lE and tighten the c...

Page 14: ...to the positioner and secure it with the screw 1 6 Ensure the leaf spring 4 on the balance arm 5 is properly fitted in the groove on the spool 6 7 Check again to ensure smooth operation of the assembl...

Page 15: ...til it fits easily under the balance arm 2 3 Ensure the assembly is aligned properly against the balance arm Balance Arm The balance arm can only be removed after I P unit diaphragm and feedback sprin...

Page 16: ...should move easily and smoothly 6 Install the lower arm and rod assembly into the positioner housing making sure the spring 6 is attached properly to the lower arm and positioner housing 7 Secure the...

Page 17: ...rn Check pilot valve function Clean or replace pilot valve Cam is incorrectly positioned Check cam for correct setting Signal change results in actuator running to end position Positioner is loose Che...

Page 18: ...DeZURIK PMV P36C and P41C Positioners used with DeZURIK Pneumatic Actuators D10327 Page 18 August 2012 Figure 16 Positioner Configurations...

Page 19: ...crew 27 1 Cam locking nut 29 1 Zero cover 30 1 Cover 32 11 Ball bearing 35 1 Identification cover a Specify 1 4 NTP or G b Specify 3 15 psi or 6 30 psi Spring Assembly c Specify Flag Transparent or Op...

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