ENERGY SAVING: No power consumption, having direct stability of water adjust. UPGRADE MATERIAL: Brass brass casting structure is and reliable hard-wearing, anti-corrosion and precise. WELL FUNCTION: Pressure regulating valve (steady flow valve) function similar to water flow switch. HIGHLIGHT: 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: Easy to install and maintain. Specification: Operating Altitude: less than equal 2500m / 8202ft Operating Temperature: 0 - 40 Celsius Operating Humidity: Less than 95% (at 25 Celsius) Type: Guide (One-way) Solenoid Valve Rated Voltage: AC 220V Operating Mode: Short-time Quota System Insulation Grade: E Fluid: Water Fluid: Temperature: 0 Celsius - 55 Celsius Water Pressure: 0.02 - 0.8MPa Water Flow Features: Water Pressure (Mpa): 0.02, 0.1, 0.3, 0.8 Lifespan: 100,000 Times Colour:Black + Gold Material:Brass + plastic Size:6x6.4cm Thread Size: 1/2 inch