A flanged gate valve is a type of industrial valve used to control the flow of fluids (liquids or gases) in pipelines or other systems. It is called a "gate valve" because it uses a gate-like mechanism to control the flow, and "flanged" because it has flanges on both ends for easy installation and connection to pipes or other equipment.
Here are some key features and components of a flanged gate valve:
Body: The body of the valve is typically made of metal, such as cast iron, carbon steel, stainless steel, or other suitable materials. It houses the valve components and provides the main structural support.
Gate: The gate is a flat or wedge-shaped barrier inside the valve that can be raised or lowered to control the flow of fluid. When the flanged gate valve gate is fully raised, it allows maximum flow, and when it's fully lowered, it shuts off the flow completely.
Flanges: Flanges are flat, circular plates with holes for bolting the valve to the pipe flanges. The use of flanges makes installation and maintenance easier, as the valve can be easily removed from the pipeline for inspection or replacement.
- Stem: The stem is a threaded or non-threaded rod connected to the gate. When the operator turns the valve handle or actuator, it raises or lowers the gate through the stem's motion.
Bonnet: The bonnet is a cover that encases the stem and helps seal the valve. It also provides access for maintenance and repair.
Sealing Surface: The gate valve relies on a metal-to-metal sealing surface between the gate and the valve seats. This design provides a tight shutoff when the valve is fully closed, minimizing leakage.
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