Features: All-brass cast construction, wear-resistant, corrosion-resistant and high-temperature resistant. This solenoid for valve not only keeps constant current flowing steadily, but also prevents dry burning and monitors flow. The machine has no power consumption, and the flow is stable and adjustable. High quality normally closed solenoid for valve for air, water or oil. It is suitable for tap water, high-end water heaters, for smart water dispensers, water heaters, direct drinking machines, water purifiers, steam engines, energy-saving air conditioners, water treatment, cooling equipment and tap water industries. Specifications: Material: Copper Rated Voltage: 12v Rated Current: 12v-300ma Nominal Diameter: 1/2" Water Pressure: 0.02-0.8mpa Size: Approx. 6.5x6 X87.5cm/2.56x2.36x1.38inch Altitude: <2,500 Meters Ambient Temperature: 0 to 40°c Air Relative Humidity: <95% (25°c Temperature) Insulation Class: E Fluid Used: (0-55℃) Water Use Water Pressure: 0.02-0.8mpa Water Pressure (mpa): 0.02, 0.1, 0.3, 0.8 Flow (l/min): > 5 > 11 > 18 > 32 Life: > 100,000 Times Package Includes: 1x Electric Solenoid for Valve note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.