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PVB ¾”- 2”

PVB ¾”- 2”. Modification Overview. Production for the ¾” – 1” PVB began in 1995 and is current. The body of the ¾” – 1” PVB was modified in July of 2005. A spring clip was added under the float assembly for serial numbers P0001 or larger.

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PVB ¾”- 2”

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  1. PVB¾”- 2”

  2. Modification Overview • Production for the ¾” – 1” PVB began in 1995 and is current. • The body of the ¾” – 1” PVB was modified in July of 2005. A spring clip was added under the float assembly forserial numbers P0001 or larger. • 1½” and 2” sizes were added in 2008. (Refer to the Wilkins 720A)

  3. Canopy Removal • The canopy is secured by two screws.

  4. Bonnet Removal • The bonnet is threaded into the body and sealed by an o-ring. • Unscrew the bonnet counter clockwise. • There is no spring load.

  5. Float Removal and Service • The float and float spring are free once the bonnet has been removed. • Replace the rubber seal by pulling it from the groove on the float.

  6. Check Valve Removal • The spring clip must be removed on versions made after July 2005. • Pinch the ends of the spring clip together and pull out of the body. ** Note: Use pliers if necessary.

  7. Check Valve Removal • The check valve is a module. • The check valve is threaded into the body and sealed by an o-ring. * * Note: A special tool is needed to remove the check module.

  8. Check Valve Disassembly • The check module is spring loaded. • Hold the check firmly while removing the retaining screw.

  9. Check Disc Replacement • Replace the rubber disc by pulling it from the groove on the poppet.

  10. Check Seat Replacement • The check seat is free once the module is disassembled. • If the seat is damaged, the check module must be replaced.

  11. Reassembly Notes • Reassemble in reverse order. • Make sure the bonnet spring is in place. • Make sure the guide stem is inserted into the center of the float.

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