The sealing surface of the valve should be resistant to abrasion, corrosion, erosion, and abrasion. It has sufficient extrusion strength. It has sufficient oxidation resistance and thermal fatigue at high temperature. The sealing surface and the valv...

The butterfly valve (Butterfly Valve) opening and closing part is a butterfly plate, which is driven by the valve stem and rotates 90° around its own axis in the valve body to achieve the purpose of opening and closing or adjustment. It is mainly use...

The swing-type check valve adopts the built-in rocker swinging type structure. All the opening and closing parts of the valve are installed outside the valve body, and do not penetrate the valve body. Except for the sealing flange and the sealing rin...

1. Overview of pneumatic actuators Pneumatic actuators are actuators that use air pressure to drive opening and closing or adjusting valves. They are also called pneumatic actuators or pneumatic devices, but they are generally called pneumatic heads....

Cavitation and noise are the two major hazards of regulating valves in controlling high pressure differential fluids. The noise on the regulating valve is the main source of pollution in petrochemical production. In addition to the use of low-noise s...

(1) Direction and location  Many valves are directional, such as stop valves, throttle valves, pressure reducing valves, check valves, etc. If they are installed upside down, it will affect the use effect and life (such as throttle valves), or they...

For valves with regulating functions such as throttle valves, pressure reducing valves, regulating valves, etc., as well as valves with special functions such as safety valves and traps, the functional sensitivity and reliability are important techni...

Nowadays, there are more and more valves on the market, the types of valves are particularly complex, and the structures and materials are all different. The selection of valves is crucial for the long-term operation of the device in working conditio...

Environmentally friendly water treatment valves have different requirements according to their types and uses, so they choose different valves, mainly including sealing, strength, regulation, circulation, opening and closing. In the process of select...

The blind plate valve, which may also be called a eyeglass valve, is a gate valve that cuts off the gaseous medium. The utility model has the advantages of simple structure, convenient operation, light and flexible use, high temperature resistance, r...

The gas ball valve refers to a valve that uses a ball with a circular passage as a starting and closing member, and the ball rotates with the valve stem to realize the opening and closing action. So what do you need to pay attention to when the gas b...

Firstly, remove the cylinder from the top of the valve body, start from the cover of the two ports of the cylinder, and completely disassemble the cover. When removing the piston, special attention should be paid to the direction of the gear bar, and...