The opening and closing part of the gate 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 valve is sealed by the contact between the valve seat and the gate plate, and the sealing surface is usually welded with metal materials to increase wear resistance, such as 1Cr13, STL6, stainless steel, etc. The gate has a rigid gate and an elastic gate. According to the difference of the gate, the gate valve is divided into a rigid gate valve and an elastic gate valve.
Gate valve is a widely used valve. Generally, cut-off devices with a diameter of DN≥50 mm are selected for use. Sometimes gate valves are also used for cut-off devices with small diameters. Gate valves have the following advantages:
①The fluid resistance is small.
②The external force required for opening and closing is small.
③The flow direction of the medium is not restricted.
④When fully open, the erosion of the sealing surface by the working medium is smaller than that of the stop valve.
⑤The body shape is relatively simple, and the casting process is better
ASME gate valve is suitable for ANSI class150 ~ 2500, PN20 ~ 42, JIS10 ~ 20K, working temperature - 29 ~ 425 ℃ (carbon steel) and - 40 ~ 500 ℃ (stainless steel),. ASME Gate Valve is used to cut off or connect the medium in the pipeline. By selecting different materials, ASME Gate Valve can be applied to water, steam, oil, nitric acid, acetic acid, strong oxidizing medium, urea and other media.
Read MoreSend InquiryThe 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.
Read MoreSend InquiryForged Steel Gate Valves is a processing method that uses forging machinery to apply pressure to metal valve blanks to produce plastic deformation to obtain forgings with certain mechanical properties, certain shapes and sizes. Forged Steel Gate Valves can eliminate the as-cast looseness of the metal and welded holes through forging. The mechanical properties of the forged parts are generally better than those of the same material. Forged Steel Gate Valves produced by Milestone Valve Company have excellent performance and are widely used.
Read MoreSend InquiryStainless steel Gate Valve is a widely used variety of gate valves. The movement direction of the gate of the opening and closing parts is perpendicular to the direction of the fluid. The Stainless steel Gate Valve can only be fully opened and fully closed, and cannot be used for adjustment and throttling. The Stainless steel Gate Valve produced by Milestone Valve Company has a variety of stainless steel materials, including 304 stainless steel, 316 stainless steel, and 321 Stainless steel Gate Valve; it has advantages from ordinary gate valves to high temperature and high pressure gate valves.
Read MoreSend InquiryKnife gate valve is suitable for pipelines with suspended particles, fiber materials, pulp, sewage, coal slurry, ash cement mixture and other media. These media can be cut off by knife edge gate which can cut fiber materials. In fact, there is no chamber in the valve body. The gate rises and falls in the side guide groove, and is tightly pressed on the valve seat by the lug at the bottom. In order to achieve more tighter, the O-shaped sealing valve seat can be selected to realize bidirectional sealing.
Read MoreSend InquiryThe Flat Panel Gate Valve is a sliding valve whose closing member is a parallel gate. The closing part can be a single gate or a double gate with a spreading mechanism in between. The Flat Panel Gate Valve produced by Milestone Valve Company has diversion hole flat gate valve, non-diversion hole flat gate valve, oil field flat gate valve, pipeline flat gate valve and gas flat gate valve according to the purpose and use occasion. The product quality is high-end, the performance is stable, and the majority of users have received good feedback.
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