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The introduction of relief valve
2015-01-06 by bridge
When the steam valve piston relief valve factory, adjustable spring in an uncompressed state, this time the main valve and the valve is in the closed state to pay, according to a clockwise direction when adjusting screws, adjust compression spring, the diaphragm down after paying top open relief valve, a hole into the top of the media by the piston, the piston in the role of media pressure, pushing down the main valve to move away from the main valve, the medium flow valve, while the c hole into the bottom of the diaphragm, when after the valve when the pressure exceeds the set pressure, adjust compression springs push the diaphragm moves. pay the relief valve moves in the closing direction, flowing above the piston of the medium decreases, resulting in reduced pressure, then the main valve in the main push down on the relief valve spring force, the main Gas Top Burner Valve and the main seat of the gap is reduced, the media flow be reduced, so that the valve pressure fall to a new equilibrium, whereas when the valve pressure is lower than it is set when the pressure, the main valve and main relief valve seat gap increases, the media flow increases, so that the valve will be increased pressure to reach a new equilibrium. maintenance and repair a valve should be stored in a dry room, the ends must pathway with blind plate blocked, allowed piled storage. 2 long-term storage of the relief valve should be checked regularly, cleaning the dirt, in the moving parts and machining surface to be coated with a rust inhibitor, to prevent rust. The main function of the role of the valve piston steam valve seat main valve consists of the valve plate, piston, cylinder, springs and other parts. Pilot piston steam valve pilot valve consists seat valve, diaphragm, spring, adjusting springs and other parts. Set by adjusting the spring pressure regulating outlet pressure, outlet pressure sensing diaphragm use change, driven by the pilot valves opening and closing the main relief valve piston adjusting throttle site over the size of the flow area to achieve pressure regulator function.
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