The Tonhe T32-S2-C Flow Control Solenoid Valve is suited for HVAC, water heater, water meters, and water treatment and has the following technical specifications: Voltage 5VDC, 12V/24VDC, 9-24VAC/DC, AC110V-230V, Pressure 1.0Mpa, Torque 10Nm, and can operate in an environment temperature -15? to 50?. Features a PTFE floating seal that guarantees no leakage and has a working life of 100k operations and has a year long guarantee and is certified NSF61, CE, ISO9001. Robust, durable and hard working.