Valve usually manually operated, which is used to release air from a water pipe or fittingS.
Automatic double ball air valves
Size: DN40mm-DN250mm
Body & cover material: Cast iron or ductile iron
Ball: NBR
Spindle: Stainless steel/Brass
Flange end air valve used in pipeline
Material:
Body: Ductile Iron
Small float ball: ABS
Large float ball: ABS
Bolt: Steel
Ball Seal Large Oriflce: EPDM
Large Orifice Cove: Ductile Iron
Dust Cap: Ductile Iron
Nut: Steel
Washer: Steel
Bolt: Steel
Ball Seal Small Orifice: EPDM
Air Release Nipple: Cast Brass
Small Orifice Cover: Ductile Iron
Nut: Steel
Washer: Steel
Screw Plug: Cast Brass
Suitable meduim: Water
Normal pressure: 1.6Mpa
Shell test pressure: 2.4Mpa
Seat Test pressure: 1.6Mpa
Flanges drilled conforms to BS4504, EN1092, ANSI, ISO7005,