●Check valve is a special valve to prevent the backflow of mud fluid.
●It can protect the pump when the pump is shut down.
●The valve adopts spring pre-compression struc ture, which is mainly composed of valve body, valve seat, gland and other parts.
●The valve is designed and ma nufactured according to API Spec 6A standard, with good self-sealing effect and long service life of valve rubber.
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