Anti-surge non slam anti water-hammer wastewater combination air valve figure SCF-RFP 2″

The CSA Mod. SCF-RFP 2″ is a high quality compact version single chamber double function combination air valve with a built in surge prevention system. The air valve allows release of air pockets from pressurized pipelines, and admits large volume of air in the event of pipe draining/burst, to prevent vacuum and negative pressure conditions. During outflow the air valves senses 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. Entirely made in ductile cast iron, with air release system and seat in stainless steel, SCF-RFP 2″ is designed to ensure long lasting and reliable performances also in presence of raw sewage keeping the solids and dirt away from the air release and sealing system.

Product features

• Upper and lower bodies in ductile cast iron GJS 450-10.

• Built-in surge prevention system.

• Air release system in stainless steel.

• Float in stainless steel AISI 316.

• Seat in stainless steel.

• Painting with fluidized bed technology RAL 5005.

Working conditions

• Raw sewage.

• Pressure range: 10-16 bar, higher on request.

• Minimum working pressure: 0.2 bar.

• Maximum temperature : 60°C, higher on request.

Connections

• Threaded connection 2″ BSP F, NPT on request.

• Supplied with fittings and flanges on request.

Standard

• Design and testing according to EN 1074.