Supply PP check prices

PP valve (Check Valve): according to the structure can be divided into lift check valve, swing check valve and butterfly valve three. Lift check valve can be divided into vertical and horizontal. Swing Check Valve into univalve, double valve type and Orange Peel three. Butterfly valve for the straight-through, over several valve in the form can be divided into threaded connection, flanged, welded and wafer-type connection of four. PP valve installation window should note the following 1. Do not check valve in the pipeline to withstand the weight of large non-return valve should be independent of the support, so that the pressure generated from piping impact. 2, pay attention to the direction of flow of the medium should be consistent with the direction of the arrow on the valve installation. 3, vertical lift check valve should be installed in a vertical pipe. 4. The level of valve lift check valve should be installed in horizontal pipelines. PP valve means to rely on the flow of the medium itself automatically open and close the valve, the valve to prevent the media back, also known as non-return valve, check valve, reflux valve, and back pressure valve. Check valves are an automatic valve, whose main role is to prevent the media back, to prevent the pump and drive motor reversal, and discharge the container medium. Pressure valve which can also be used to exceed the system pressure may rise auxiliary systems provide supply pipeline. Check valve can be divided into the swing check valve (depending on the focus of rotation) and lift check valves (axial movement). PP valve function is only allowed media to flow in one direction, and stop the flow in opposite directions. Usually the valve is automatically work in a direction of flow of fluid pressure effect, the valve opens; opposite direction of fluid flow from the fluid pressure and the valve flap from the coincidence of acting on the valve seat, thereby cutting off the flow.