Air Release

Fox 3 RFP Rapid Filling Preventer

Enquire now How to order Jan 2022 Price List

The CSA Mod. FOX 3F-RFP, is a full-bore high-quality single chamber double function combination air valve with a built-in anti-water hammer non slam surge prevention system. The air valve allows the release of air pockets from pressurised pipelines and admits large volumes of air in the event of pipe draining or burst, to prevent vacuum and negative pressure conditions.

During outflow the air valves sense the increase in air velocity and differential pressure, using—if required by excessive values—the RFP (anti-surge) flat to control the air outflow rate thus avoiding fast approaches of water column with potential sudden closures of the mobile block and the risk of water hammer.

View all data sheets & engineering data
Australian Standard WSAA AWQC AS4956 approved, WSAA appraised


Protection of pipe during filling with CSA RFP air valves Watch video

Protection of pipe during filling with CSA RFP air valves

  • Fully approved AS4956-2017 / AS4020 / WSAA / MRWA
  • In built RFP (rapid filling protection) to avoid water hammer during filling
  • Low pressure sealing on all PN16 valves to 10Kpa
  • PN16, PN35 and PN40 valves all with AS4087 flanges (plus others)
  • Compact design with protection mesh, test valve and ability to isolate with butterfly valves.

Do you need urgent technical support?

Get real-time technical assistance from the Bermad team through our video support portal.

Currently unavailable Start call now
live troubleshoot preview on mobile phone
Live field support