The 2-way normally closed general purpose solenoid is to control On/Off of liquid. This industrial solenoid has 1/2" inch inlet ports. stays close when the coil is de-energized, and it opens when energized. Features: - Robust brass with nickle and finished, leakage proof, , 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. - Type:Ordinary temperature normally closed, 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. Range: 3L/min-25L/min. - Coil Resistance: 26 (DC12V). - Insulation Resistance: Should more than 100MOmega. - Life Time: More Than 300, 0000 times. Package list: 2 x Electric Solenoid