and High Back Pressure (LBP/MBP/HBP)

Reliable Fail-Safe Operation: Internal spring return ensures the HVAC damper moves to a safe position during power interruptions

ensuring reliable activation at the 150 PSI set point

A higher voltage rating provides a larger safety margin against voltage spikes

this vent pressure switch ensures high-accuracy monitoring of the flue vacuum

Johnson Controls MP843E001 Valve Actuator THPU32HP7Y and High Back Pressure (LBP/MBP/HBP)The Johnson Controls MP843E001 is a high performance pneumatic valve actuator designed for reliable positioning of globe valves in commercial HVACR systems. Engineered for hot water, chilled water, and steam applications, this 50 square inch actuator features a 9 13 PSI spring range and a precise 3 4" stroke to ensure accurate flow modulation. The rugged, die formed carbon steel housing and EPDM synthetic rubber diaphragm provide a constant effective