China 4 inch Female Thread Brass Ball Valve Manufacturers, Suppliers, Factory

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Hot Products

  • Swing Check Valve

    Swing Check Valve

    Swing Check Valve is also known as one-way valve or check valve. Its function is to prevent the medium in the pipeline from flowing back. It is mainly used in the pipeline where the medium flows in one direction. It only allows the medium to flow in one direction to prevent accidents. The Swing Check Valve produced by Milestone Valve Company is designed and manufactured in strict accordance with the GB12236 standard. The pin and valve disc link adopts a built-in structure with excellent performance and reliable sealing. It is widely used in various pipelines in the petroleum, chemical, pharmaceutical, and electric power industries.
  • 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.
  • Cast Steel Gate Valve

    Cast Steel Gate Valve

    Cast steel gate valve is characterized by a “gate” that closes in a plane perpendicular to the flow of fluid. They are used primarily for on/off, nonthrottling service.
  • 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.
  • 4 inch Female Thread Brass Ball Valve

    4 inch Female Thread Brass Ball Valve

    A 4 inch Female Thread Brass Ball Valve is a form of quarter-turn valve which uses a hollow, perforated and pivoting ball to control flow through it. The ball has 4 inch(100 mm)nominal diameter. It is used in the pipeline to cut, distribute and change the flow direction of the medium. Ball valves feature small torque value, good sealing performance and easy operation.
  • Stainless Steel Fixed Ball Valve

    Stainless Steel Fixed Ball Valve

    Compared with the floating ball valve, the force produced by the fluid pressure in front of the valve on the ball is all transferred to the bearing, so the ball will not move to the valve seat, so the valve seat will not bear too much pressure; Moreover, the Stainless steel fixed ball valve has small torque, small deformation of valve seat, stable sealing performance and long service life, which is suitable for high pressure and large diameter applications.

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