Four-function automatic air valve with rapid filling prevention system fig. FOX 3F RFP C

The FOX 3F RFP C model is a high performance automatic combination air valve, single chamber and full bore, with an integrated rapid filling prevention system. It allows air pockets to be expelled under pressure during operation and large volumes of air to be admitted in the event of draining or a pipe burst, preventing negative pressures. When air is released at high speed and the pressure difference is high, the RFP anti water hammer disc closes, reducing the outlet flow and preventing the sudden closing of the moving block. Made entirely of ductile iron, with a stainless steel venting system and sealing seat, the FOX 3F-RFP C stands out for its reliability and durability.

Features

GJS 450-10 ductile iron body and cover.

Stainless steel venting system.

Stainless steel sealing seat.

Solid polypropylene float.

Integrated anti water hammer system.

RAL 5005 blue epoxy coating applied by fluidised bed.

Working conditions

Pressure: 10-16-25-40 bar.

Minimum pressure: 0.2 bar.

Treated water up to 60°C. Higher values on request.

Connections

Flanges from DN 50 to DN 250 mm.

Drilling to EN 1092/2, ANSI 150, AS; others on request.

BSP F 1″-2″ thread, NPT on request.

Standards

Designed and tested to EN 1074, AWWA C-512, AS 4956, AS 4020, WRAS.