1pcs 00221609 Normally Closed Spring Coupled Servo Auxiliary Solenoid Valve 6213
To fully open the valve, a differential pressure of at least 0.1 bar is required. Representative: Type 6213. Burkert Servo Assisted Spring Coupled Solenoid Valve Principle. Like all servo-assisted solenoid valves, the I pilot valve is responsible for opening the balancing channel between the balancing chamber and the valve outlet, releasing the pressure in the balancing chamber, thereby opening the valve.