ITEM NAME:Ac 220V 1/2 Inch Solar Water Heater Solenoid Valve Normally Closed Inlet Va Q4Y1 Ac 220V 1/2 Inch Solar Water Heater Solenoid Valve Normally Closed Inlet Va Q4Y1 No power consumption, having direct stability of water adjust. Brass brass casting structure is and reliable hard-wearing, anti-corrosion and precise. Pressure regulating valve (steady flow valve) function similar to water flow switch. This solenoid valve not only can keep the constant current steady flow, but also prevent the dry burning and monitoring the flow. Easy to install and maintain. Color: gold Material: Copper Thread Size: AC 220V 1/2inch Weight: 212g Size: Approx. 6 * 6.4cm / 2.4 * 2.5inch Operating Altitude: ≠¤2500m / 8202ft Operating Temperature: 0 - 40℃ Operating Humidity: Less than 95% (at 25℃) Type: Guide (One-way) Solenoid Valve Rated Voltage: AC 220V/ DC 24V Operating Mode: Short-time Quota System Insulation Grade: E Fluid: Water Fluid: Temperature: 0℃ - 55℃ Water Pressure: 0.02 - 0.8MPa Water Flow Features: Water Pressure (Mpa): 0.02, 0.1, 0.3, 0.8 Flow (L/min): Greater than 5 Greater than 11 Greater than18 Greater than 32 Lifespan: Greater than100,000 Times Package Includes: 1 x Water Valve.This solenoid valve not only can keep the constant current steady flow, but also prevent the dry burning and monitoring the flow. Type: Guide (One-way) Solenoid Valve. Pressure regulating valve (steady flow valve) function similar to water flow switch.