ENERGY SAVING: No power consumption, provides direct stability of water adjustment. UPGRADE MATERIAL: Brass casting structure is durable, reliable, anti-corrosion, and precise. WELL FUNCTION: Pressure regulating valve (steady flow valve) function similar to water flow switch. HIGHLIGHT: This solenoid valve maintains constant current steady flow, prevents dry burning, and monitors flow. EASY TO INSTALL: Easy to install and maintain. Specification: Operating Altitude: less than or equal to 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: Greater than 100,000 Times Color: Black + Gold Material: Brass + Plastic Size: 6 x 6.4cm Thread Size: 1/2 inch Package Contents: 1 x Electric Solenoid Valve Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture to be slightly different from the real thing. The measurement allowed error is +/- 1-3cm.