Derwent industries

AFC Sewer Air Release Valves

sewer-air-release-valve

Flow Control – Air Valves Home > Flow Control Products > Air Release Valves > AFC Sewer AFC Sewer Air Release Valve Derwent Industries combination double orifice air release valves are made in accordance with AS 4883. The valves are also available in Anti Shock. Features: Ductile Iron body and bonnet to AS 1831:500-7 Float […]

AFC Water AIr Release Valves

AFC Air Valve

Flow Control – Air Valves Home > Flow Control Products > Air Release Valves > AFC Water AFC Water Air Release Valve Derwent Industries combination water potable double orifice air release valves are made in accordance with AS 4956. The valves are also available in Anti Shock. Features: Ductile Iron body and bonnet to AS […]