1 / 9

Comprehensive Overview and Service Guide for PVB-4A Series Valves

The PVB-4A series valves have been in production since 2008 and remain a current offering. This guide provides a detailed overview of the valve's features, including canopy and bonnet removal procedures, float service, check valve disassembly, and replacement of critical components such as the check disc and seat. Step-by-step instructions ensure proper reassembly while highlighting the importance of lubricating the bonnet O-ring for optimal performance. Follow this guide for effective maintenance and service of the PVB-4A series.

eric-hensley
Download Presentation

Comprehensive Overview and Service Guide for PVB-4A Series Valves

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. PVB-4A½”- 2”

  2. Modification Overview • Production of the PVB4A series began in 2008 and is current.

  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. Note: If float spring is damaged, the bonnet must be replaced.

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

  6. Check Valve Disassembly • The check valve is secured by the float cage and sealed by an o-ring. • Remove the float cage. • Push down and turn the spring retainer 90 degrees.

  7. Check Disc Replacement • The check poppet is free once the spring and retainer are removed. • The check disc is free once the retaining screw and guide are removed.

  8. Check Seat Replacement • The check seat is pushed into the body and o-ring sealed. • Simply pull the seat straight out of the body.

  9. Reassembly Notes • Reassemble in reverse order. • Lubricate bonnet o-ring.

More Related