99ASV: Anti-siphon Valve
The OPW 99ASV anti-siphon valve is designed to automatically shut off flow of product in the event the line is broken. This feature helps prevent fuel spillage and fire hazards.
All 99ASV anti-siphon valves are equipped with a pressure relief valve, to relieve thermal expansion. They are available in 40mm and 50mm NPT sizes, smaller sizes available on request. Two different hydrostatic head pressure settings are stocked: 3m and 4.5m - other settings also available on request.
Complies with AS 1940-1993.
The 99ASV is recommended to be installed on the top of the Above Ground Tank. See the attached recommended installation, the A measurement from the top of the tank to the lowest point of the fuel supply line is critical for the correct selection of the anti-siphon valve. We recommend the combination of the 99ASV with a 10BM under pump shear valve for maximum protection from fuel spillage.
99ASV-2150 Anti-siphon Valve 40mm x 3m
99ASV-2200 Anti-siphon Valve 50mm x 3m
99ASV-3150 Anti-siphon Valve 40mm x 4.5m
99ASV-3200 Anti-siphon Valve 50mm x 4.5m
Other sizes and pressures available
The OPW 99ASV contains no adjustable, replaceable, or repairable parts. DO NOT DISASSEMBLE