WASTEWATER AIR VALVES
  • Home / 
  • Products / 
  • Anti-surge non slam anti water-hammer wastewater combination air valve

SCF-RFP

Anti-surge non slam anti water-hammer wastewater combination air valve

The CSA Mod. SCF-RFP is a high quality single chamber double function combination air valve a built in anti-water hammer non slam 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 the upper body in stainless steel AISI 316 for the best resistance against corrosion, SCF-RFP 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
• Lower body and cover in ductile cast iron GJS 450-10.
• Upper body in stainless steel AISI 316.
• Built-in surge prevention system.
• Air release system in stainless steel.
• Floats 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.
• Minimum working pressure: 0.2 bar.
• Maximum temperature : 60°C, higher on request.
Connections
• Flanges size from DN 50 to DN 200 mm.
• Flanges standard EN 1092/2, different on request.
 
Standard
• Design and testing according to EN 1074.