2W511-10

Product Introduction and Working Principle

There are three types of solenoid valves: pipe connected, plate connected, and built-in.

The solenoid valve body adopts an integral internal groove structure, and the valve core sealing "O" ring adopts a diamond cross-section, which has strong gripping ability and small displacement deformation. Therefore, electromagnetic valves have the advantages of airflow conversion, fast action speed, self-cleaning inside the valve, and long-term trouble-free operation. The board mounted solenoid valve can meet the NAMUR installation requirements of pneumatic actuators.

Power on action: When the coil is powered on, the generated magnetic field will drive the moving iron core to overcome the force of the pilot spring and move away from the air nozzle to the left. After the compressed air is sprayed out from the air nozzle, it pushes the pilot piston and pushes the electromagnetic valve core to overcome the displacement of the main spring to the right. At this point, the compressed air input from the P hole will flow out of the A hole and push the actuator piston from the front to open the actuator. At this point, the exhaust from hole B will be discharged through hole R2 of the solenoid valve.

Power loss action: When the coil loses power, the magnetic field around the moving iron core disappears. Under the force of the pilot spring, the moving iron core moves to the right and blocks the air nozzle. At this point, the pressure in the left chamber of the pilot piston disappears, and under the force of the main spring of the solenoid valve, the solenoid valve core shifts to the left. At this point, the compressed air input from the P hole will switch to flowing out from the B hole and pushing the actuator piston from the opposite side until the actuator is closed. At this point, the exhaust from hole A will be discharged through hole R1 of the solenoid valve.