Valve Couple (Ball+Seat) use as spare parts for valve in oil rod pump, in electro centrifugal pump and etc, which used for exctart oil, gaz. Valve Couple (Ball+Seat) is the most responsible knot of the pump. From quality of valve couple(Ball+Seat) depend the time of working pump. We offer qualitative Valve couple (Ball+Seat) from Carbide of Tungsten of the YG8, YG13, YG15 material.
Quality of processing of a Ball and Seat allows to provide leakproofness of Valve couple(Ball+Seat) with a vacuum pressure not less than 0,1 kgfs/cm2 within one minute. Requirements for API: Valve couple(Ball+Seat) has to provide leakproofness at vacuum pressure of 0,65 kgfs/cm2 within 10 seconds.
The smooth surface allows to reveal small scratches and surface damages which can lead to future corrosion. It allows to increase the time of use of valve couple(Ball+Seat). Also, it allows to use the pump's at oil extraction in severe conditions.