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Products WaterWorks Air Valves Double Chamber / Triple Function with Isolation Air Valves

Double Chamber / Triple Function with Isolation Air Valves

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Air Valves with Isolation Valve are used to prevent pipeline burst, as a result of air intake/discharge failure in the start-up and shut-off of the system and during operation. Air Valves with Isolation Valve are considered as double chamber air valves which are designed to three functions, which are venting of large volumes of air on the start-up of the system, while pipelines are filled; intake of large volumes of air on shut-off of the system, while pipelines are being drained; and discharge of pressurized air pockets during operation. Furthermore, built in isolation valve feature enables easy maintenance. When the valve is closed, one can reach and replace all internal items of the air valve. Due to special cylindrical, full material, non-deforming float, DVD Air Valves can provide sealing even in 0.2 bar low pressure. DVD Air Valves can be manufactured from GG25, GGG40 – 40.3 – 50, GSC25, SS304, SS316 and NAB materials.

Double Chamber / Triple Function with Isolation Air Valves
:Size DN 50…DN 150
:Operating Pressure PN 10 - 16 - 25 - 40
:Flanges ISO 7005/2
EN 1092/2
BS 4504
BS 10E
ANSI


 
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