Dfb-8-dh-1.0 two-position five-way mine flameproof electromagnetic valve is mine flameproof ExdIMb two-position five-way electromagnetic valve. Mainly used in coal mines, underground mines. Control double action pneumatic head, cylinder, pneumatic motor, pneumatic actuator and other pneumatic components, the valve for the pilot single electronic control pneumatic circuit conversion structure. When the power is on, the closed path should be changed into a normally open one and the open path should be changed into a normally closed one. The gas circuit is restored when the power is cut off. (also can be used as two tee)
Technical specification for two position five - way mine flameproof solenoid valves, dfb-8-dh-1.0
1. Using the environment: the environment temperature is not higher than 40 ℃, relative humidity is not more than 85%.
2. Working medium: it shall be clean and free from suspended matter.
3. Power supply variation: normal operation under rated voltage -15%-+10%.
4. High commutation frequency: 8 times per second.
Dfb-8-dh-1.0 two-position five-way mine flameproof solenoid valve working principle
Dfb-8-dh-1.0 two-position five-way mine flameproof solenoid valve is a versatile five-way valve. Is closed. At this time, the inlet pressure of inlet 1N pushes the small piston, so that the inlet 1N is communicated with the working port 1, and the working port 2 is communicated with the exhaust port 2. When energized, the moving iron core is attracted by the electromagnet, open the pilot valve, so that the intake pressure to push the piston. Move stem under pressure difference of large and small piston to make air inlet 1N communicated with working port 2 and working port 1 communicated with exhaust port E1. After power failure, the pilot valve is closed because the moving iron core is restored to the initial position under the pressure of the spring.
Dfb-8-dh-1.0 two-position five-way mine flameproof solenoid valve installation and use
1. Before installation, purge the pipe to avoid welding slag and other materials from damaging the sealing surface.
2. During installation, make sure that the normally open and normally closed working ports are also determined. Working port 1 is the normally open working port and working port position 2 is the normally closed working port.
3. Install horizontally according to the mark and number on the valve body.
4. The use conditions are consistent with the technical specifications.
5. For explosion-proof products, please connect the leads according to the relevant regulations of explosion-proof requirements.
Contact email:sales006@rig123.com
Leon Lee
