Flange Ends Ductile Iron Air Relief Valve For Water Line DN50-DN200

Air Valve Flange End

1. PRODUCT PROFILE

Triple function air release valve is installed at the pump outlet or in the water supply line to remove a large amount of air from the pipe or dischargea small amount of air collected at a higher level of pipeline into the atmosphere,so as to improve the efficiency of the pipeline and the pimp. The device evacuates great air amounts during the filling of the main, allows the inlet of great air amounts (in order to avoid a vacuum effect) during the emptying of the main and evacuates small air amounts that are accumulated in the high points of the main during normal working conditions.

2. FEATURES

· Discharge air more flexible

· Preventing of the water hammer

· Discharge the air slowly

· Safer self-protection

· Long service life

3. TECHNICAL SPECIFICATION

· Nominal pressure: PN10 / PN16 bar

· Size: 2”~ 8” (DN50 ~ 200mm)

· Materials: cast iron A126 B (GG25), ductile iron A536 65-45-12 (GGG40/50)

4. STANDARD

· Design & manufacturing: BS EN1074-4:2000

· Face to face: BS EN1074-4

· Flanged ends: EN 1092-2:1997, ASME B16.1/B16.42, AS4087

· Inspection & testing: EN 12266-1:2012

· Working temperature: 0 ℃ ~ + 80 ℃

5. APPLICATION

· Water projects

· Real Estate

· Water treatment industry

· Power plant

· Pump station