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The DMF-Z right angle electromagnetic pulse valve is controlled by electromagnetic or pneumatic pilot valves and can instantly open and close diaphragm valves that generate pulses from high-pressure gas sources. Electromagnetic pulse valve: refers to a diaphragm valve that combines an electromagnetic valve, a pilot valve, and a pulse valve, and is directly controlled by an electrical signal.
Working principle of DMF-Z right angle electromagnetic pulse valve
By inputting a positive pulse signal into the coil inside the solenoid valve through a wire, the working magnetic flux generated by the coil attracts the moving core and opens the valve. When the forward pulse signal input is stopped, the moving core is released and returns to its initial state under the action of spring force, closing the valve.
In addition, there are self holding types that can be maintained even after stopping the input of positive pulses or power failure, and require the input of negative pulse signals to reset; The working principle of electromagnetic pulse valve is to convert electrical pulses into mechanical pulses, so that the energy of pulsating gas is converted into momentum and released in a short period of time to generate huge impulse force. The interval between pulses controlled by PLC should be determined according to the rated gas pressure recovery time l.
Electromagnetic pulse valve controls the opening and closing of the valve body unloading hole according to electrical signals. When the valve body is unloaded, the pressure gas in the rear chamber of the valve is discharged, and the pressure gas in the front chamber of the valve is throttled by the negative pressure hole on the diaphragm. The diaphragm is lifted, and the pulse valve sprays. When the valve body stops unloading, the pressure gas fills the rear chamber of the valve through the damping hole. Due to the difference in the force area on both sides of the diaphragm on the valve body, the gas force in the rear chamber of the valve is large, and the diaphragm can close the valve's blowing port, causing the pulse valve to stop blowing.
Technical requirements for DMF-Z right angle electromagnetic pulse valve
1. The surface of the electromagnetic pulse valve has no obvious coating peeling, scratches, burrs or other damages.
2. The working pressure of the product is 0.1MPa to 0.7MPa, and the medium is air that has undergone oil and water removal treatment.
3. The electromagnetic pulse valve should be able to withstand a gas source pressure of 0.8 MPa.
4. When the working gas source pressure is 0.1MPa, the electromagnetic pulse valve can be closed.
5. Under specified environmental conditions, the insulation resistance of the electromagnetic coil to the casing should be greater than 1M Ω.
6. Under the conditions of room temperature ranging from 5 ° C to 35 ° C and relative humidity not exceeding 85%, the electromagnetic coil of the electromagnetic pulse valve can withstand a voltage of 50Hz and 250V on the shell for 1 minute without breakdown.
7. When the operating voltage of the electromagnetic pulse valve is 85% of the rated voltage under the nominal gas source pressure of the product, the opening response time should be less than 0.03s.
8. The electromagnetic pulse valve should be able to operate normally after being subjected to vibration with a frequency of 20Hz, a full amplitude of 2mm, and a duration of 30 minutes.
9. Under normal usage conditions, the cumulative service life of the electromagnetic pulse valve diaphragm should be greater than 800000 times.
Installation Instructions for DMF-Z Right Angle Electromagnetic Pulse Valve
1. Before use, pay attention to checking whether the components have been damaged during transportation.
2. Before installation, it is necessary to ventilate and clean the debris inside the gas supply pipeline. Pay attention to the direction of gas flow and whether the connections are correct during installation.
3. All O-ring seals should be coated with suitable lubricant during installation.
4. The electromagnetic pulse valve coil has three pins and is equipped with a plug, one of which has a "; " The symbol represents the grounding pin, and users can decide whether to ground it according to their needs.