How are solenoid valves categorized? The more detailed the better

Trace the history of the development of solenoid valves, so far, domestic and foreign solenoid valves are divided into three major categories from the principle (i.e.: direct-acting, step-by-step children's pilot-type), and from the valve structure and materials on the different principles of the difference is divided into six branches of the subclasses (direct-acting diaphragm structure, step-by-step heavy plate structure, pilot diaphragm structure, direct-acting piston structure, step-by-step direct-acting piston structure, pilot-piston structure).

Installation precautions are as follows:

When installing, it should be noted that the arrow on the valve body should be consistent with the direction of media flow. Can not be installed in the place where there is direct dripping or splashing water. Solenoid valve should be installed vertically upwards.

Solenoid valve should ensure that the power supply voltage for the rated voltage of 15%-10% fluctuations within the normal operation.

Solenoid valve installation, there shall be no reverse differential pressure in the pipeline. And need to be energized several times to make it the right temperature before officially put into use.

Solenoid valve should be thoroughly cleaned before installation. Passed into the medium should be free of impurities. Valve before the installation of filters.

When the solenoid valve failure or cleaning, in order to ensure that the system continues to operate, should be installed bypass device.

Typical solenoid valves

Female solenoid valve for steam

Model: ZQDF

Caliber: small diameter

Material: carbon steel, cast iron, stainless steel

Flange solenoid valve for steam

Model: ZQDF

Caliber: small diameter

Material: carbon steel, cast iron, stainless steel, stainless steel, stainless steel, stainless steel, stainless steel, stainless steel, stainless steel, stainless steel, stainless steel, stainless steel, stainless steel, stainless steel, stainless steel, stainless steel, stainless steel, stainless steel, stainless steel, stainless steel, stainless steel Stainless steel

ZCM gas solenoid valve

Model No.: ZCM

Caliber: small diameter, medium caliber

Material: carbon steel, stainless steel

Solenoid valve (normally closed)

Model No.: US-F

Caliber: small diameter, medium caliber

Material: carbon steel

Solenoid valve (normally closed)

Caliber: small diameter, medium diameter

Material: carbon steel

Solenoid valve for underwater use

Model: SLDF

Caliber: small diameter, medium caliber

Material: carbon steel, cast iron, stainless steel

Solenoid valve for medical equipment

Model: 2W

Caliber: small diameter, medium caliber

Material: carbon steel, stainless steel

Model: 2W

Caliber: small diameter, medium diameter

Material: carbon steel, stainless steel