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Knowledge principles of various types of valves

2016-10-12 管理员 Read 1211

Valves

Devices used to control fluid flow, pressure, and direction

butterfly valve

The butterfly valve opening and closing component is a disc-shaped butterfly plate that rotates around its own axis inside the valve body to achieve opening, closing, or adjusting the valve

Gate valve

The opening and closing components of a gate valve are called a gate plate. The gate plate moves up and down, perpendicular to the direction of the fluid. The gate valve can only be fully open and fully closed, and cannot be used for adjustment or throttling

Blowdown valve

The sewage valve has a small volume, light weight, simple structure, good sealing, low material consumption, small installation size, especially small driving torque, and easy operation. It uses gears to rotate 90 degrees to drive the valve stem to lift and achieve the purpose of opening and closing. Easy to achieve fast opening and closing

Globe valve

Globe valve is a widely used type of valve. Due to the low friction between the sealing surfaces during the opening and closing process, it is durable, has a low opening height, simple production, and convenient maintenance. It is not only suitable for medium and low pressure, but also for high pressure

Check valve

The valve that relies entirely on the force brought by the flow of the medium to open or close, in order to prevent the backflow of the medium, is called a check valve

ball valve

Ball valve is a type of valve that uses a sphere with a circular channel as the opening and closing component. The sphere rotates with the valve stem to achieve the opening and closing action

Pressure reducing valve

The pressure reducing valve is used to regulate the flow rate of the medium by controlling the opening and closing parts inside the valve body

Regulating valve

The regulating valve is used to regulate the flow rate, pressure, and liquid level of the medium. According to the signal of the regulating part, automatically control the opening of the valve to achieve the adjustment of medium flow rate, pressure, and liquid level

Balance valve

Balance valve is a valve that plays a dynamic and static balance regulation role under hydraulic conditions

safety valve

A safety valve is a fully automatic valve that does not require any external force, but utilizes the force of the medium itself to discharge the rated amount of fluid

Diaphragm valve

The opening and closing part of a diaphragm valve is a diaphragm made of soft material, which separates the valve body cavity from the valve cover cavity and driving components, so it is called a diaphragm valve

Drain valve

A drain valve is a valve used in steam pipelines and equipment, which can automatically discharge condensed water, air, and other non condensable gases, and prevent water and steam leakage

Plug valve

The plug valve has a simple structure, fast opening and closing, and low fluid resistance. Plug valve is a valve that uses a plug body with a through hole as the opening and closing component, and achieves the opening and closing action through the rotation of the plug body and the valve stem

solenoid valve

Electromagnetic valves are automation basic components used to control fluids and belong to actuators. Electromagnetic valves are used to control the direction of hydraulic flow. Mechanical devices in factories are generally controlled by hydraulic steel, and electromagnetic valves are used. Electromagnetic valves are not only hydraulic and pneumatic