Different check valve installation requirements

Socket weld forged steel check valve installation should pay attention to the following things: 1, do not make check valve in the line to bear weight, large check valve shall be independent support, make it not influenced by the pressure caused by the piping. 2, when installation should pay attention to the medium flow direction arrow with valve body by the ticket in the same direction. 3, vertical elevating disc check valves should be installed in vertical pipe runs. 4, elevating disc check valves should be installed in horizontal pipe runs. To clamp lift check valve should be installed in horizontal pipe runs. Swing check valves can be installed in a horizontal or vertical. Swing check valve, the valve disc around the axis of rotation, the fluid resistance is generally less than lift check valve, it is suitable for large caliber, installation position is not restricted, are normally installed in horizontal pipe, which applies with the occasion of the large diameter. On large diameter pipe should be more disc check valves or large caliber silent check valve, make the disc in closing time stagger or slowly shut down, to relieve the damage of water hammer. http://www。 nwfamen。 com/NewsDetail。 aspx吗? cid=107