Simplified Installation: Designed for rapid field conversion by reusing the existing metal cap screw for a secure seal

the 804111707 pressure switch incorporates a SPDT contact configuration

Vibration Dampening: The included gasket reduces mechanical resonance

reducing amp draw and thermal stress

multi-application controller for modern hydronic systems

Schneider Electric (Barber Colman) MK-6601 Proportional Control Refrigerant Simplified Installation: Designed for rapidThe Schneider Electric MK 6601 is a rugged 50 square inch pneumatic valve actuator designed for proportional control of valves requiring linear movement. Featuring a 3 8 psi spring range and a 1 2 inch nominal stroke, this spring return actuator ensures consistent positioning and reliable fail safe operation in HVAC systems. The unit is housed in a durable NEMA 1 enclosure, protecting internal components from environmental debris, while the 1 8" NPT