Usage Tips:Description: The 2-way normally closed general purpose solenoid is to control On/Off of liquid. This industrial solenoid has 1/2" inch NPSM inlet ports. stays close when the coil is de-energized, and it opens when energized. It's suitable for liquid, water, high-end water heaters, intelligent drinking fountains, water heaters, straight drinking machines, water purification machines, steam machines, energy-saving air-conditioning, water treatment, cooling equipment and water industry and other fields, a widely used tool for daily use. Features: - Robust brass with nickle and finished, leakage proof, anti-corrosion, durable and wear-resistant.- DC 12V 1/2in quick connect solenoid valve.- Keep constant current steady flow as well as preventing the dry burning and monitoring the flow.- Normally Closed. Open when current through, closed when no current through.- Designed to control automatically the liquid. Suitable for hot or cold water. Specifications - Color: Golden- Material: Brass- Size: Approx. 6.4 x 6.2 x 4 cm / 2.44 x 2.51 x 1.57 inch(LxWxH)- Type:Ordinary temperature normally closed, two way solenoid valve- Nominal diameter: 1/2"- Connecting format: Internal thread /screw thread- Liquid Temperature: Not More Than 80 degree- Working Voltage: DC12V- Working water pressure Range: 0.02-0.8 Mpa- Maximum water pressure: 1.75MPa- Flow Range: 3L/min-25L/min- Coil Resistance: 26 (DC12V)- Insulation Resistance: Should more than 100MOmega- Life Time: More Than 300, 0000 timesPacking list: 1 x 1/2" NPSM DC 12V 2-Way Quick Connect Normally Closed Brass Electric Solenoid Magnetic Water Inlet Flow Switch Electromagnetic szsh02