Introduction to various types of valves

Introduction to various types of valves

There are various valves on the Internet to introduce and explain, but basically only introduce a kind of valve, and regardless of the three seven twenty-one, all the information about the valve is written together, reading can not be dizzy. Therefore, Beijing Valve Group collected and compiled a brief description of various commonly used valves to facilitate reading by readers who have just entered the market.





Device for controlling fluid flow, pressure and flow direction

Butterfly valve

The butterfly valve opening and closing member is a disc-shaped butterfly plate that rotates around its own axis in the valve body to open and close or adjust the valve.


The opening and closing part of the gate valve is called the ram. The ram is up and down, perpendicular to the fluid direction. The gate valve can only be fully open and fully closed , and cannot be used for adjustment and throttling.

Drain valve

The sewage valve is small in size, light in weight, simple in structure, good in sealing performance, low in material consumption, small in installation size, especially small in driving torque, easy to operate, and the purpose of opening and closing is achieved by using a gear rotating 90 degrees to drive the valve stem. Easy to achieve fast opening and closing

Shut-off valve

The shut-off valve is a kind of valve which is widely used. Due to the small friction between the sealing surfaces during the opening and closing process, it is durable, the opening height is not high, the production is simple, and the maintenance is convenient. It is not only suitable for medium and low pressure, but also suitable for high pressure.

Check valve

The opening and closing member completely relies on the force brought by the flow of the medium to open or close itself, so that the valve that prevents the medium from flowing back is called the check valve.

Ball valve

The ball valve is a valve that uses a ball with a circular passage as a starting and closing member, and the ball is opened and closed with the rotation of the valve stem.

Pressure reducing valve

The pressure reducing valve achieves the purpose of regulating the flow of the medium by controlling the opening degree of the opening and closing member in the valve body.

Regulating valve

Regulators are used to regulate the flow, pressure and level of the media. According to the adjustment part signal, the opening of the valve is automatically controlled to achieve the adjustment of the medium flow, pressure and liquid level.

Balance valve

The balance valve is a valve that adjusts dynamic and static balance under hydraulic conditions.

Safety valve

The safety valve is a fully automatic valve that does not require any external force, but uses the force of the medium itself to discharge a nominal amount of fluid.

Diaphragm valve

The opening and closing member of the diaphragm valve is a diaphragm made of a soft material, which separates the valve body cavity from the bonnet cavity and the driving member, so it is called a diaphragm valve.


The trap is a valve used in steam pipe networks and equipment to automatically discharge condensed water, air and other non-condensable gases, and block water vapor leakage.

Plug valve

The plug valve has a simple structure , quick opening and closing , and low fluid resistance. The plug valve is a valve that uses a plug body with a through hole as an opening and closing member, and realizes opening and closing action through rotation of the plug body and the valve stem.

The electromagnetic valve

Solenoid valves are automated basic components used to control fluids and are actuators. Solenoid valves are used to control the direction of hydraulic flow. The mechanical mechanisms of the plant are generally controlled by hydraulic steel and solenoid valves are used. Solenoid valves are not just hydraulic and pneumatic

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