The check valve is a closed-circuit valve and a functional valve. Wherever the backflow of the medium is prevented, a check valve should be installed. Therefore, a check valve should generally be installed at the outlet of the pump. Below, Check Valves Factory introduces the selection requirements of check valves:
(1) The installation position of the check valve, such as the gravity lift check valve, can only be installed on the horizontal pipeline; the bottom valve can only be installed on the vertical pipeline of the water pump suction pipe; the installation position of the swing check valve is not subject to Restriction, can be installed on the horizontal pipeline, can also be installed on the vertical pipeline.
(2) The medium conveyed by the pipeline The type of the check valve is determined according to the medium conveyed by the pipeline.
(3) The medium backflow speed is large. If the medium backflow speed in the pipeline is large, a check valve with a slow closing device should be selected.
(4) Limitation of check valve The check valve is limited by the structure and material. Its scope of application is limited.