Combination Air Valve
Wastewater & water treatment plants, Desalination & Sea Water, Mines, Oil & Gas, Marine - Ballast Water, Food Industry, Power Plant Cooling.
50mm-200mm (2"- 8")
Threaded (50-80mm), Flanged
The D-020 combination air valve contains both an air & vacuum large orifice component and an automatic small orifice air release component in a single body. The valve is specifically designed to operate with liquids carrying solid particles.
The valves unique long conical body design enables the separation of the liquid from the sealing mechanism and assures optimum working conditions.
Conical body shape
Designed to maintain the maximum distance between the liquid and the sealing mechanism and still obtain minimum body length.
Independent spring-guided linkage
Allows free movement of the float and rod. Vibrations and movement of the lower float due to turbulence will not unseal the upper float mechanism.
The rolling seal is less sensitive to pressure differential & provides smooth positive opening, closing, and leak free sealing. It accomplishes this by having a comparably large orifice for a wide pressure range.