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National standard bellows gate valve (globe valve)
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Gate valve(Globe)with bellows seal ace.toGB
Main parts material/Main parts m aterials
A bellows gate valve is an essential component in many industrial and plumbing applications.
Design and Construction
The key feature of a bellows gate valve is the bellows element. This bellows, typically made of corrosion - resistant materials such as stainless steel, provides a flexible and leak - proof seal. It is connected to the gate, which is the part that controls the flow of fluid. The gate moves up and down within the valve body. The valve body itself is usually made of a durable material like cast iron or brass, depending on the application requirements.
Functionality
When the valve is open, the gate is lifted, allowing fluid to flow freely through the valve. When closed, the gate blocks the passage, preventing any fluid leakage. The bellows plays a crucial role in ensuring that there are no leaks around the gate, even under high - pressure conditions. This makes it ideal for applications where tight shut - off and leak - prevention are critical, such as in chemical processing plants, water treatment facilities, and oil and gas pipelines.
Advantages
One major advantage is its excellent sealing performance. The bellows - based design can maintain a seal over a long period, reducing the need for frequent maintenance. Additionally, it can handle a wide range of fluid types, including corrosive chemicals and high - temperature fluids. Bellows gate valves are also relatively easy to operate, either manually or with the use of an actuator for automated control in industrial settings.
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