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        The working principle and characteristics of stainless steel gate valve

        Date:[2016-10-19]    Hits:

        Stainless steel gate valve works

            Gate valve with the valve stem with a straight line movement, called the lift bar valve (also known as the Ming Barrier valve). Trapezoidal threads are usually provided on the lift rods. The rotary motion is changed to linear motion through the nut on the top of the valve and the guide groove on the valve body, ie the operating torque is changed to the operating thrust. Sealing surface can only rely on the media pressure to seal, that is, relying on the media pressure to the gate of the sealing surface to the other side of the valve seat to ensure the sealing surface of the seal, which is self-sealing. Most of the gate valve is forced seal, that is, the valve is closed, to rely on external force to force the gate pressure to the seat in order to ensure the sealing surface of the seal.

        Characteristics of stainless steel gate valve

          1, selection of sophisticated, in line with domestic and international standards, the overall quality of the material high.

          2, in line with the requirements of advanced standards at home and abroad, sealed and reliable, excellent performance, handsome in appearance.

          3, Sealing pair is advanced and reasonable. The sealing surface of the gate and the valve seat is made of Stellite cobalt-base hard alloy with different hardness. The seal is reliable, high hardness, abrasion resistance, high temperature resistance and corrosion resistance. , Anti-scratch performance, long life.

          4, the stem after quenching and surface nitriding treatment, a good corrosion resistance, abrasion resistance and abrasion resistance.

        5, the use of wedge-shaped flexible gate structure, large diameter set thrust bearings, friction is small, and with the impact of manual, open and close easily.

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