1 / 10

4V-500 ½”-2”

4V-500 ½”-2”. Modification Overview. Production of the 4V-500 PVB began in 1998. The 4V utilizes a float assembly that contains a relief valve that protects the unit against freeze damage. Canopy Removal. The canopy is secured by two screws. Bonnet Removal.

signe-lyons
Download Presentation

4V-500 ½”-2”

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. 4V-500½”-2”

  2. Modification Overview • Production of the 4V-500 PVB began in 1998. • The 4V utilizes a float assembly that contains a relief valve that protects the unit against freeze damage.

  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 is part of the bonnet assembly. • If the float or float spring is damaged, the bonnet must be replaced.

  6. Check Valve Removal ½”-1” • 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.

  7. Check Valve Removal 11/4”-2” • The 11/4” & 11/2” check modules are secured by a retainer that is threaded into the body. • The 2” check valve is not modular and is spring loaded. • Unscrew the spring retainer counter clockwise.

  8. Check Disc Replacement • The ½”-11/2” rubber discs are part of the check module. • If the disc is damaged, the check module must be replaced. • The 2” disc is free once the screw and retainer are removed.

  9. Check Seat Replacement • The ½”-11/2” check seats are part of the check module. • If the seat is damaged, the module must be replaced. • The 2” check seat is threaded into the body and sealed by an o-ring. • A special tool is needed for seat replacement.

  10. Reassembly Notes • Reassemble in reverse order. • Lubricate the bonnet and check o-rings.

More Related