Main uses of zqdf solenoid valve, working principle of zqdf solenoid valve

zqdf solenoid valve Main uses

This valve is a common type of solenoid valve in automatic control actuators. It can be programmed to control or remotely control the opening and closing of steam, liquid, oil, gas and other media pipelines. zqdf solenoid valve has the characteristics of wide application, various types of media used, wide working pressure range and long service life.

ZQDF solenoid valve working principle

The valve adopts a special structural form that combines primary opening and secondary opening. , when not powered on, Solenoid valve is closed. When energized, the coil generates a magnetic field that attracts the iron core, lifts the valve stem, and opens the pilot valve port. A pressure difference is generated between the upper and lower parts of the valve plug, which lifts the piston. When the medium pressure is very small (or even zero), the moving iron core pulls the piston up directly with the valve stem. At this time, the main valve port also becomes a passage. At this time, the action principle is a moving-only form. The characteristics of zqdf solenoid valve can be achieved under zero pressure difference. works, and the flow rate is larger than that of the pilot valve. After the power is turned off, the magnetic field disappears, and the main valve port is closed under the action of the self-gravity and pressure difference of the spring and piston.

Precautions for installation and use of zqdf solenoid valve:

1. When installing, the solenoid valve coil should face upward and maintain a vertical position. The arrow or mark on the solenoid valve should be consistent with the flow direction of the pipeline. Do not install in places with splashing or leaking water. This model of solenoid valve is not suitable for explosion-proof locations.

2. The working medium of the solenoid valve should be clean and free of moisture. Particulate impurities and a filter of 80-100 mesh/inch should be installed in front of the valve. Dirt and filters on the surface of the main valve core of the solenoid valve and the fixed iron core of the moving iron core must be cleaned regularly. Solenoid valves are used in systems that work continuously for a long time, and a bypass device should be installed.

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