Technical Specifications: Operating Voltage: 220VAC ±15%, 50Hz Rated Power: <4W Thrust: At -15% voltage, operating thrust is no less than 55N Operating Temperature: -25℃ to 70℃ (non-freezing) Service Life: Greater than 100,000 cycles Valve Seat Seal: Leakage less than 20ml/h at 0.3bar