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Keystone Butterfly Valve

The YUANDA Group provides a comprehensive range of butterfly valves, offering optimal performance across various applications. Since 1994, YUANDA has built a strong reputation for delivering industrial process butterfly valves known for their reliability, extended lifespan, and cost-effectiveness in reducing operational costs.

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Keystone Butterfly Valve

Butterfly valves excel in providing both true isolation and control capabilities within a single product. Specifically designed for accurate flow and pressure control, these valves are particularly well-suited for applications where positive isolation is a crucial requirement.

YUANDA's butterfly valves are known for their dependable high-cycle service and find applications in a wide range of industries, including Oil & Gas (upstream and downstream), Energy (power and steam distribution), Chemical, Petrochemical, Pulp & Paper, HVAC (Institutional), Water and Waste Water Treatment, as well as in the Life Science and Food & Beverage sectors.

Notably, butterfly valves offered by YUANDA are versatile and cost-effective alternatives to gate, ball, and globe valves. Their ability to replace these traditional valve types makes them an efficient choice for various industrial processes.

YUANDA's butterfly valve series provides a comprehensive solution for industries seeking reliable, high-performance valves capable of serving diverse applications while optimizing operational efficiency and reducing costs.

Its working principle is to lift or press a rectangular or circular gate connected by the valve stem to the fluid path by rotating the handle wheel clockwise and counterclockwise.
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The gate valve is designed for fully open or fully closed service. They are installed in the pipeline as isolation valves and should not be used as control or regulating valves.
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For the product category of gate valve, we are a professional manufacturer from China, gate valve, flange gate valve supplier/factory, wholesale elastic sealing gate valve research and development and manufacturing of high-quality products, we have perfec
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The gate valve is a valve that completely restricts the flow of fluid and provides a full-diameter valve without changing the direction. The valve disc is appropriately called a gate here and is moved into the fluid at right angles by a threaded shaft wor
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Gate valves and globe valves are the two most common types of valves in industrial applications. Both have made great contributions to any industrial service. They may look similar, but the functions of these valves are different.
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Forged steel gate valves are available in three bonnet designs. The first design is a bolted bonnet with male and female joints and spiral wound gaskets, made of F304/graphite. Ring joint gaskets are also available on request. The second design is a welde
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Do not use the valve as a crowbar to open the flange, as this may cause damage to the flange area and/or damage to the O-ring seal.
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Ball valves are more effective in forming tight seals and have higher reliability and life than gate valves, but they are more expensive. They are often used to shut down and control applications. Because the ball valve can be opened and closed instantane
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The manual gate valve is operated by a simple handwheel to raise the valve stem and gate. When closed, the gate rests on a seat ring, both of which are specially treated to provide a reliable closure.
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The easy operation, maintenance and versatility of the ball valve make it widely used in industry. This high-quality ball valve will be an excellent choice for shut-off and control applications.
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Control valves are an essential part of any piping unit. The basic function of these valves is to manage the flow of medium through different piping areas of a system. Ball and plug valves are two types of control valves that have similar functions and ar
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Gate valves Gate valves are called rising valves or non-rising valves. Around the non-vertical stem gate valve, the stem is screwed into the gate around the lower end surface. Because the handwheel around the valve stem rotates, the gate will move the val
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The gate valve is externally threaded and yoke type full bore, with elastic wedge and rising stem.
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The assembly, start-up, and maintenance of gate valves require a lot of space.
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Ball valves are widely used in petroleum and natural gas, chemical and petrochemical, food industry, water supply, water treatment, building construction, light industry, power generation, pharmaceuticals, biotechnology, laboratory equipment, marine and o
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The operation of the gate valve is to perform a clockwise closing (CTC) or clockwise opening (CTO) rotary movement of the valve stem. When the valve stem is operated, the gate moves up or down on the threaded part of the valve stem.
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High-performance stainless steel butterfly valves are one of the most widely used butterfly valve types in processed food-grade products. They are also used to treat corrosive fluids. Stainless steel butterfly valve adopts SS304, SS316 or SS316L body mate
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The plug or disc is an important part of the valve. It is connected to the valve stem and can be used for throttling.
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The working principle of the stop valve is the vertical movement of the valve disc away from the valve seat. So when the valve is closed, it will cause the space between the disc and the seat ring to close. This is why these valves are used to start, stop
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Types of butterfly valves: lug type butterfly valve, U-shaped flange butterfly valve, double flange butterfly valve, fluorine-lined PTFE butterfly valve, double eccentric butterfly valve and triple eccentric butterfly valve
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