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1/2” NPT, normally closed, brass-body solenoid valve for water service with a maximum temperature of 180°F and a maximum pressure of 150 psi. The solenoid valves are activated by a solenoid (electromagnetic) coil, which, when energized or de-energized, moves the core (or piston) to apply pressure against its diaphragm and seat. These valves have two operations, either normally open or normally closed. Normally open valves allow flow throughout the valve until the coil is energized to close the valve. Normally closed is sealed until the coil is energized to open the valve.