Brass 2/2 Normally Open - Direct Acting

Brass 2/2 normally open direct acting solenoid valves (zero rated) remain open when de-energised and close when electrical power is applied. Designed for operation without pressure differential, these valves will function from vacuum up to maximum rated pressure. Unlike pilot operated valves, direct acting solenoid valves do not require minimum inlet pressure, making them ideal for low pressure, gravity-fed or vacuum applications. The normally open (fail-safe open) design ensures flow continues during power loss, providing a reliable solution for safety-critical systems. Key Features: Normally open (fail safe open) operation Direct acting (zero pressure / zero rated) Operates from vacuum to maximum pressure Brass construction for durability BSP threaded connections Available in multiple voltages Typical Applications: Low pressure or gravity-fed systems Vacuum applications Cooling and circulation systems Safety systems requiring fail-open operation For higher flow applications with pressure differential, view our pilot assisted normally open solenoid valves.