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Valve selection

2021-01-12

Valve selection In the fluid piping system, the valve is the control element, and its main function is to isolate the equipment and the piping system, adjust the flow, prevent backflow, adjust and drain the pressure....　　Read More »

The role of the pressure reducing valve and common faults

2018-07-10

The working principle of the pressure reducing valve is to reduce the water pressure by the local resistance of the flow passage in the valve to the water flow. The pressure drop is limited by the film connecting the valve flap or the sides of the piston....　　Read More »

Do you know the difference between solenoid valves and electric valves?

2018-07-10

The solenoid valve is driven by the coil and can only be turned on or off. The switching time is short. The drive of the electric valve is generally driven by a motor. It takes a certain amount of time to simulate the opening or closing action, and can be...　　Read More »

The difference between backflow preventer and check valve

2018-07-10

Both the backflow preventer and the check valve function to prevent backflow, but the two are different and have essential differences. The backflow preventer consists of two spaced check valves and a drain valve....　　Read More »

Factors affecting the quality of castings

2018-07-10

Appearance quality refers to the surface roughness, surface defects, dimensional deviation, shape deviation and weight deviation of the casting; the intrinsic quality mainly refers to the chemical composition, physical properties, mechanical properties....　　Read More »