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China 4 inch Steam Ball Valves Manufacturers, Suppliers, Factory

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4 inch Steam Ball Valves, We insist on the principle of "Credit being primary, Customers being the king and Quality being the best", we have been looking forward to the mutual cooperation with all friends at home and abroad and we'll create a bright future of business.

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    Triple Offset Flange Butterfly Valve

    The valve stem axis deviates from the disc center and body center at the same time, and the valve seat rotation axis has a certain angle with the valve body channel axis, which is called triple offset flange butterfly valve.
  • Vertical Check Valve

    Vertical Check Valve

    Vertical check valve is a check valve similar to the lift check valve. However, this valve generally has a spring that will 'lift' when there is pressure on the upstream side of the valve. The pressure needed on the upstream side of the valve to overcome the spring tension is called the 'cracking pressure'. When the pressure going through the valve goes below the cracking pressure, the spring will close the valve to prevent back-flow in the process.
  • Double flange sluice valve

    Double flange sluice valve

    You are welcomed to come to Milestone factory to buy the latest selling, low price, and high-quality Double flange sluice valve. The opening and closing part of Double flange sluice valve is a gate, and the movement direction of the gate is perpendicular to the direction of the fluid. The gate valve can only be fully opened and fully closed, and cannot be adjusted or throttled. The gate has two sealing surfaces. The two sealing surfaces of the most commonly used model gate valve form a wedge.
  • Undergroud Gate Valve

    Undergroud Gate Valve

    The undergroud gate valve adopts no cavity structure, the inner and outer surface of the valve body and cover is sprayed with epoxy resin coating, and the surface of the gate is coated with rubber, which fundamentally eliminates the possibility of corrosion.
  • Ductile Iron Butterfly Valve

    Ductile Iron Butterfly Valve

    Ductile iron butterfly valve is used for isolating and regulating flow. The closing mechanism is a disc that allows for quick shut off, much like a ball valve. Butterfly valves are light in weight so they require less support.
  • Stainless Steel Flange Gate Valve

    Stainless Steel Flange Gate Valve

    Stainless steel flange gate valve is an on / off control valve, used to transfer or cut off the medium. The opening and closing part of the stainless steel flange gate valve is the gate. The movement direction of the gate is perpendicular to the fluid direction. When the valve plate falls down, the valve closes to prevent the medium from flowing. When the valve plate rises, the valve opens and the medium can pass through the valve. Stainless steel flanged gate valves can only be fully opened and fully closed.
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  • 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.

  • Operation Standard of Electric Gate Valve

    All filling cups and oil holes must be filled with lubricating oil, and all the stop valves of the water inlet and outlet and exhaust pipes must be opened.

  • 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.

  • Learn what Gate Valve does and how it works

    Gate Valve is a commonly used control valve. Its main function is to control the flow and pressure of fluid by opening and closing. This article will introduce you to the purpose and working principle of Gate Valve.

  • Classification of gate valves

    Wedge gate valve: The gate is wedge-shaped and can be divided into single wedge and double wedge. It is commonly used in applications under high pressure and high temperature conditions.

  • The Difference Betwwn Gate Valve and Globe Valve

    The structure of gate valve will be more complex than that of globe valve. In terms of appearance, under the same diameter, gate valve is higher than globe valve and globe valve is longer than gate valve. In addition, gate valve has the difference between the ring stem and the no-rising stem, but globe valve have none.

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