Worcester Controls19406-HFactory Mutual Approved Series 51 and 52 Fire-Safe ValvesInstallation, Operation and Maintenance InstructionsContentsVALVEINS
10 19406-HCAUTION: Be sure that the fusible plug is reinstalled beforereturning the actuator to service.r. Mark Rebuild/Accessory Addition Label, if
19406-H 11Flow Control DivisionWorcester Controls11 Body2A 1 Shaft (10-2039)2B 1 Shaft (25-3539)32 Pistons42 Guide Rods5A 1 Solenoid Block (Inlet) End
Flow Control DivisionWorcester ControlsFlowserve Corporation has established industry leadership in the design and manufacture of its products. When p
2 19406-HFlow Control DivisionWorcester ControlsCAUTION: Flowserve recommends that all product which mustbe stored prior to installation be stored ind
19406-H 3- Relieve the line pressure. Operate the valve prior toattempting removal from line.- Place valve in half-open position and flush the line
4 19406-HFlow Control DivisionWorcester Controls1/2"-2" 51/52 Valvesa. Lightly lubricate the ball, seats, seals, seal protector (if used)an
19406-H 5Flow Control DivisionWorcester ControlsCAUTION: Do not install 39S (spring return) models with airconnection in end cap or with integral sole
6 19406-HFlow Control DivisionWorcester ControlsITEM QTY DESCRIPTION11 Body21 Nameplate31 Stem41 Thrust Bearing51 Ball62 Seat71 Body Seal8a 1 End Plug
19406-H 7Flow Control DivisionWorcester ControlsCAUTION: The actuator is a “spring return” model. Firstremove two end cap screws diagonally opposite e
8 19406-HFor Rev. R1 models, remove shaft clip (15F) (not reusable part!) (seenote above) and the S.S. washer from the shaft. Then remove the toppinio
19406-H 9Flow Control DivisionWorcester Controlsoccur without moving the pistons out of the actuatorbody. This is important!g. Install O-rings (15A)
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