The Ranco A22-391 Constant Differential Control is a specialized temperature control switch engineered for high-demand commercial refrigeration and freezer applications

providing the robust mechanical force required to actuate larger damper blades or louvers even under high static pressure

Reliable Switching: Single Pole Double Throw (SPDT) configuration allows for flexible wiring as normally open or normally closed

designed to match the shaft diameter of standard residential blower motors

ASCO 8210B57-240V Solenoid Valve Freon The Ranco A22-391 Constant DifferentialThe ASCO 8210B57 240V Solenoid Valve is a high performance 2 way normally open solenoid valve designed for reliable fluid control in industrial and HVACR applications. Engineered with a durable brass body and high quality NBR seals, this pilot operated solenoid valve provides exceptional flow capacity with a 13 Cv flow coefficient. Operating on 240Vac, it manages air, water, and light oil systems with a pressure range of 0 125 PSI. The 1 inch NPT