Block valve solenoid valve is one of the most widely used valves, with the development of ball valve and butterfly valve, the application of block valve has been replaced, but from the characteristics of the block valve itself, its selection principle is:

In high temperature, high pressure medium pipeline or device, should choose stop valve. Such as thermal power stations, nuclear power plants, petrochemical systems in high temperature, high pressure pipelines.

For some lines with less consideration for resistance pressure loss.

Air solenoid valve flow adjustment or pressure adjustment, but the adjustment accuracy is not high, and the pipe diameter is small, such as nominal passage ≤50mm pipeline, should be selected.

Small valves can choose needle valve, measuring valve, sampling valve, pressure gauge and so on.

High pressure Angle globe valve or high pressure Angle throttle valve should be used to synthesize small fat fertilizer in industrial production.

Alumina Bayer process production, desilication workshop easy coking pipeline, easy to choose CRV carbon tank solenoid valve body separate type, seat can move, hard alloy sealing pair DC globe valve or DC throttle valve. Municipal water supply, heating engineering, nominal through the smaller pipeline, can choose automotive VVT solenoid valve globe valve, balance valve or plunger valve.

Solenoid valve torque is difficult to control, easy to produce internal leakage, and even pull the stem head; Solenoid valve structure, easy to control leakage, until leakage to zero. Therefore, the use of solenoid valve is particularly safe, especially suitable for corrosive, toxic or high and low temperature media. Electromagnetic force valve itself simple structure, low price, compared with other actuators such as regulating valves, easy installation and maintenance. More obviously, the automated control system is simpler and cheaper. Because the solenoid valve is a switch signal control, it can be easily connected to the industrial computer. In the popularity of computers, prices fell significantly in the era, the advantages of the solenoid valve is more obvious.