The Schneider Electric MA40-7043-501 is a high-performance DuraDrive spring return actuator designed for two-position control of dampers and valves in commercial HVAC systems

eliminating the risks associated with generic aftermarket seals

and cloning of settings across identical TEC3000 series models

Its galvanized steel construction offers the structural integrity required for long-term reliability in residential and light commercial air handlers

Johnson Controls V-4440-1008 Valve Assembly Refrigerant The Schneider Electric MA40-7043-501 isThe Johnson Controls V 4440 1008 is a professional grade three way brass valve assembly specifically engineered for return valve applications in terminal unit control systems. Featuring a 1 2" NPT connection and a 2. 4 Cv flow coefficient, this assembly provides precise modulation for hot water, chilled water, or 50% glycol solutions. The integrated pneumatic actuator operates within a 6 to 9 psi spring range, ensuring reliable proportional control