9000-770-670   9000-770-670

Gate Valves


Gate Valves

Category:

Gate valves are a type of valve used to control the flow of fluids within a piping system. They are commonly used in industrial applications, such as oil and gas, water treatment, and chemical processing, as well as in residential plumbing systems. Gate valves are named for the gate-like mechanism inside the valve body that controls the flow of fluid.

Here are the key features and components of gate valves:

  1. Body: The body of a gate valve is typically made of metal, such as cast iron, brass, or stainless steel. It houses the internal components of the valve and provides a connection point for the piping system.
  2. Gate: The gate is the main component of the valve that controls the flow of fluid. It is a flat or wedge-shaped barrier that can be raised or lowered within the valve body to open or close the flow passage. When the gate is fully raised, the valve is in the fully open position, allowing maximum flow. Conversely, when the gate is fully lowered, the valve is in the fully closed position, blocking the flow completely.
  3. Stem: The stem is the mechanism that connects the gate to the valve actuator (such as a handwheel, lever, or motor). When the actuator is operated, it moves the stem, which in turn raises or lowers the gate to control the flow of fluid.
  4. Seats: Gate valves have two seats, one on each side of the gate, which provide a tight seal when the valve is closed. These seats prevent fluid from leaking past the gate when the valve is in the closed position.
  5. Bonnet: The bonnet is the cover or enclosure that houses the stem and other internal components of the valve. It provides protection and support for these components and is typically bolted or threaded onto the valve body.

Gate valves are well-suited for applications where a tight shutoff is required, as they provide a reliable seal when fully closed. However, they are not ideal for regulating flow or throttling, as their operation is typically limited to fully open or fully closed positions. Additionally, gate valves are susceptible to damage from high-velocity flow and are generally slower to operate compared to other types of valves, such as ball valves or butterfly valves.