this kit is essential for contractors looking to improve proportional control and eliminate hysteresis in existing HVAC pneumatic systems

This control is engineered for interrupted or intermittent duty and features a restricted lockout mode to prevent repetitive resetting of a fouled system

You can use either code number for the same installation requirements

Dead-End Lock-Up: The lever-acting design prevents pressure creep during periods of zero demand

Fail-Safe Reliability: Mechanical spring return ensures dampers or valves return to their normal position during power loss

Schneider Electric (Barber Colman) MA51-7203 Actuator Refrigerant this kit is essential forThe Schneider Electric (Barber Colman) MA51 7203 is a direct mount DuraDrive actuator engineered for high performance two position (on off) control in demanding HVACR applications. Operating on 24V AC DC, this spring return actuator provides a robust 220 lbf (979 N) force, making it a reliable solution for driving VB 7xxx and VB 8xxx globe valves without the need for complex linkages. Its internal spring return fail safe mechanism ensures the valve