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China Electric Shut Off Butterfly Valve Manufacturers, Suppliers, Factory

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  • Pinless Butterfly Valve

    Pinless Butterfly Valve

    Pinless Butterfly Valve is a kind of valve which opens, closes and adjusts the fluid channel by the reciprocating rotation of the disc type opening and closing parts about 90 degrees. As a component used to realize the on-off and flow control of pipeline system, the pin-less butterfly valve has been widely used in many fields such as petroleum, chemical industry, metallurgy, etc.
  • Slide Gate Valve

    Slide Gate Valve

    The slide gate valve is a kind of knife gate valve, the gate and the valve seat are always in close contact to achieve sealing.
  • Butterfly valve lever operated

    Butterfly valve lever operated

    We are largest valves manufacturers in China and metal disc mounted on a rod. When the valve is closed, the disc is turned so that it completely blocks off the passageway. When the Butterfly valve lever operated is fully open, the disc is rotated a quarter turn so that it allows unrestricted passage. Butterfly valve lever operated may also be opened incrementally to regulate flow. There are different kinds of Butterfly Valves, each adapted for different pressures and different usage.
  • 2pc High Performance Ball Valve

    2pc High Performance Ball Valve

    In the 2pc high performance ball valve structure, the flange is connected by bolts, and the seal is made of reinforced polytetrafluoroethylene inlaid into the stainless steel ring.
  • Stainless Steel Welded Ball Valve

    Stainless Steel Welded Ball Valve

    A Stainless Steel Welded Ball Valve is used to control the flow of gas or liquid through a passage. It is distinct from other ball valves because its ball is mounted and welded onto a trunnion at the base and supported by the stem at the top.
  • Water Gate Valve

    Water Gate Valve

    The water gate valve is opened and closed by the up and down movement of the valve plate. The movement direction of the gate is perpendicular to the fluid direction. The gate moves up and down perpendicular to the center line of the valve channel, cutting off the medium in the pipeline like the gate, so it is called gate valve. The gate valve can only be fully opened and closed, but can not be adjusted and throttled.
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  • What are the disadvantages of ball valves?

    ​Ball valves are a popular type of valve used in a variety of industries, including chemical, oil and gas, and water treatment.

  • Introduction of Electric Butterfly Valve

    The electric butterfly valve adopts a centerline disc structure, the valve seat and the disc are almost free of wear, and has a tighter and tighter sealing function, which can withstand the sealing requirements of high-pressure media; its structure is simple, small in size and light in weight.

  • Application medium and working condition of butterfly valve

    Butterfly valve is mainly used for liquid, gas low pressure large diameter pipeline. It is suitable for the occasions where the pressure loss requirement is not high, the flow regulation is needed, and the opening and closing requirements are fast; Generally, the temperature is below 300 ℃ and the pressure is below 40 kg). The medium is generally used for water and gas, and the medium requirement is not high. Granular medium can also be used.

  • What are the advantages of Ball Valve?

    ​Ball valves are quarter-turn valves that use a hollow, perforated and pivoting ball to control the flow of fluids through pipes.

  • Gate valve movement mode

    When the gate valve is closed, the sealing surface can be sealed only by the medium pressure, that is, only rely on the medium pressure to press the sealing surface of the gate plate to the valve seat on the other side to ensure the sealing of the sealing surface, which is self-sealing. Most of the gate valve is forced seal, that is to say, when the valve is closed, the gate should be pressed to the valve seat by external force, so as to ensure the sealing surface sealing.

  • Causes of Damage to the Valve Sealing Surface

    2.The valve is not selected according to the working conditions, and the cut-off valve is used as a throttle valve, resulting in excessive closing specific pressure and closing too fast or not tightly, causing the sealing surface to be eroded and worn.

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