The machine has no power consumption, and the is stable and adjustable normally closed solenoid for for air, water or oil All-brass cast construction, wear-resistant, corrosion-resistant and high-temperature resistant It is suitable for tap water, high-end water heaters, for smart water dispensers, water heaters, direct drinking machines, water purifiers, engines, energy-saving air conditioners, water treatment, cooling equipment and tap water industries This solenoid for not only keeps constant current flowing steadily, but also prevents dry burning and monitors, Manufacturer: Zeizafa