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

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Hot Products

  • Lug Wafer Butterfly Valve

    Lug Wafer Butterfly Valve

    Every request from customers is being replied within 24 hours.Lug Wafer Butterfly Valve, as a component used to control pipeline system and flow has been widely used in many fields such as petroleum, chemical industry, metallurgy, hydropower and so on.
  • Triple Eccentric Butterfly Valve

    Triple Eccentric Butterfly Valve

    1. The double flow direction can bear pressure to realize the installation mode without flow direction restriction. 2. The design of all metal seal, the seat and sealing ring adopt steli alloy surfacing technology to solve the problem of poor sealing performance of butterfly valve under severe working conditions such as high temperature, high pressure and low temperature. triple eccentric butterfly valve can withstand pressure up to 2500 pounds, and the temperature resistance is as low as -196 ℃ to 850 ℃, the seal reaches 0 leakage and the control ratio is up to 100:1. 3.The triple eccentric butterfly valve seat and valve body are designed separately, and the valve plate and sealing ring are designed separately. The products can be matched and interchanged. The whole valve will not be scrapped because of the seal wear problem. triple eccentric butterfly valve can be used normally only by replacing the valve seat and sealing ring, thus reducing the use cost.
  • Cast Iron Flange Gate Valve

    Cast Iron Flange Gate Valve

    Cast iron flange gate valve is a kind of valve, which has the characteristics of low flow resistance, high height, and long opening and closing time. The opening and closing part of the gate valve is a gate. The movement direction of the gate is perpendicular to the direction of the fluid. The cast iron flange 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-shaped, wedge-shaped angle valve.
  • Stainless Steel Ball Valve

    Stainless Steel Ball Valve

    Stainless steel ball valve is widely used in various fields. Its superior quality and high performance stability are beyond the reach of ordinary cast steel ball valve, and its service life is much longer than that of cast steel ball valve. Stainless steel ball valve is widely used in urban gas, urban heating, petrochemical, shipbuilding, steel, pressure regulating station, power plant and other pipeline equipment.
  • On Off Butterfly Valve

    On Off Butterfly Valve

    DN100, DN200 and DN300 On Off Butterfly Valves family provide an integral flow control solution for customers from small diameters to large 200" valves with all types of operation and actuation possibilities and engineered, designed, built, tested and guaranteed by MST professionals.
  • Composite exhaust air valve

    Composite exhaust air valve

    Find a huge selection of Composite exhaust air valve from China at Milestone. Composite exhaust air valve is a barrel shaped valve body, which mainly contains a group of stainless steel balls, rods and plugs. Composite exhaust air valve is installed at the pump water outlet or in the water supply and distribution pipeline to remove a large amount of air accumulated in the pipeline, or a small amount of air accumulated at a higher place of the pipeline is discharged into the atmosphere, so as to improve the service efficiency of the pipeline and the pump Valve quickly inhales outside air to protect the pipeline from damage caused by negative pressure.

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