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Spring Return Safety: Mechanical spring return ensures the valve returns to the normally closed position upon power failure
The Johnson Controls R-3710-2007 is a high-precision
70" WC SPST switch provides a critical fail-safe for modern heating equipment
High Performance: Rated for 60 PSI max pressure
Schneider Electric (Erie) AH24B020 Actuator 30067439-890 Spring Return Safety: Mechanical springThe Schneider Electric (Erie) AH24B020 Actuator is a professional grade, 2 position powerhead designed for rigorous hydronic heating and cooling systems. Built specifically for the Erie PopTop zone valve series, this 120Vac spring return actuator ensures a reliable normally open fail safe position during power loss. Its high close off capability allows it to maintain a tight seal under higher differential pressures, making it suitable for demanding
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