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What is the cut-off valve

- Jul 12, 2018 -

Cut-off valve, also known as Jummen, is the most widely used a valve, it is widely popular, because of the opening and closing process of the sealing surface friction between the small, relatively durable, open height is not easy to manufacture, maintenance convenience, not only applicable to the middle and low pressure, but also applicable to high pressure.

The closing principle of the cut-off valve is to rely on the pressure of the valve to make the valve seal face close to the seat sealing surface and prevent the media from circulating. The valve plays an important role in cutting and throttling the medium in its pipeline, cut-off valve as a very important cut-off valve, its seal is through the valve stem torque, valve stem in the axial direction to the disc pressure, so that the disc sealing surface and the seat sealing surface close together, to prevent the media along the seal surface gap leakage.