The machine has no power consumption, and the is stable and adjustable This solenoid for not only keeps constant current flowing steadily, but also prevents dry burning and monitors normally closed solenoid for 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, engines, energy-saving air conditioners, water treatment, cooling equipment and tap water industries All-brass cast construction, wear-resistant, corrosion-resistant and high-temperature resistant, Manufacturer: Kaeltsyn