What check valve installed in the outlet valve position as a kind of automatic valve type, non-return valve on inner medium flow yes pressure to push the valve flap the valve can be automatically closed and open, effective to prevent the backflow of piping within the medium, so as to ensure the safety of the pipeline. Because in the actual operation of non-return valve is typically used with other Industrial Valves, therefore, non-return valve installation position also became one of the key. In most practical cases, non-return Industrial Valves installed in front of the pump outlet valve, some installation at the back of the pump outlet valve, so, in order to achieve prevent the backflow medium happens, what check valve should be installed in this position? About this question, people in the industry said that depending on the actual application requirements. Before a, installed in the pump shaft end of the straw has a non-return valve is to be installed in front of the pump shaft end of the straw, the installation method commonly used in the pump equipment is higher than liquid surface height under the circumstances. Under this installation way, need not when pumping every time need to charge a water in the pump, check valve is installed in the vertical pipe end position kept one medium, effectively avoid the idling condition. Second, installed in the pump check valve installed in the pump in the rear of the rear of the non-return valve is more applicable and liquid level height is higher than the pump case, installation is convenient in to stop the pump running is separately and close the discharge valve, so as to realize the mother tube pump system does not have a medium conditions. Check valve installation points before the water pump and water pump after two kinds of situations, but regardless of the specific position, it is need to install it in pump export, export control valve position before, so convenient in problems after the repair work. This article by all standing valve ( News) Editing and publishing
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