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combination air valves
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description
the combination air valve has the features of both an air release valve and an air & vacuum valve.
the air release component of the combination air valve was designed to automatically release small pockets of air to the atmosphere as they
accumulate along a pipeline or piping system when it is full and operating under pressure.
the air & vacuum component was designed to automatically discharge or intake large volumes of air during the filling or draining of a pipeline
or piping system. this valve will open to relieve negative pressures whenever water column separation occurs. applications - pump stations: after the pump and after the check valve.
- head system.
- at the end of lines and at the end of a sub main.
- on strainers and filters.
main features - working pressure range: dg-10 0.1-10 bar. d-040 0.2-16 bar
- testing pressure: dg-10 16 bar. d-040 25 bar.
- working temperature: 60° c.
- maximum short-term temperature: 90° c.
- the body is made of high strength composite materials and all operating parts are made of specially selected corrosion-resistant materials.
- the larger than usual orifice enables it to release air at higher flow rates than other automatic air release valves of its kind.
- the enlarged orifice with its self-cleaning mechanism dramatically reduces obstruction due to debris.
- the valve's rolling seal mechanism design is less sensitive to different pressures than a direct float seal, thus enabling a one-size orifice for a wide pressure range (from 0.2 up to 10 bar).
- light, simple and reliable structure.
- due to its light weight, the valve may be installed on plastic piping systems, as well as other light weight piping.
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