these part numbers refer to the same 24-inch technical specification and are interchangeable in all documented applications

The York S1-028-12385-700 Sheave is a professional-grade 1-groove variable pitch pulley engineered for precision air balancing in commercial and residential air handlers

Can this be used as a manual reset switch

Common Questions: Does this valve come with a solenoid coil

Schneider Electric (Barber Colman) MK-4801 Valve Actuator Refrigerant these part numbers refer toThe Schneider Electric MK 4801 represents a rugged solution for proportional control within high capacity HVAC systems. This pneumatic valve actuator features a factory calibrated 3 to 8 psi spring range, designed to provide consistent force for modulating 1 1 2" to 2" VB 9XXX series valve bodies. Built with a metal NEMA Type 1 enclosure, the MK 4801 handles a 30 psig maximum air pressure, ensuring reliable operation in demanding mechanical rooms. The