When the CONTROLAIR Valve is in decreasing pressure position, the inlet valve is closed and the exhaust valve is open to vent the OUT pressure to atmosphere, inlet pressure is on top of the closed inlet valve. The ease with which an "H" CONTROLAIR Valve is operated is obtained by creating a differential between the counterbalanced air pressure and spring forces within the valve and by using this differential to open or to close valves. The sensitive, precise pressure control of the "H" CONTROLAIR Valve and its ability to change delivery pressure in small increments are obtained through the use of a large responsive diaphragm. OUTLET PRESSURE - According to model selected.PARTS INTERCHANGEABILITY - all similar parts in the various types of CONTROLAIR Valves are interchangeable.SIMPLICITY-CONTROLAIR Valves contain only a few wearing parts and these are easily replaced.All other parts are made of anodized aluminum or bronze. CORROSION RESISTANCE - diaphragms and seals are made of oil-resistant synthetic rubber. ![]() ![]()
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