Precise Alignment: High-tolerance engineering ensures the VSM shaft remains perfectly centered on the actuator pinion to prevent mechanical wear

275 cross-section must match the groove depth for a proper seal

Manual Valve Actuation: Operates solenoid valves magnetically up to 300 psi differential pressure

this unit provides the necessary reliability to restore system cooling capacity without extensive piping modifications in most 2-ton applications

Siemens Building Technology GMA151.1P Actuator 328140-751 Precise Alignment: High-tolerance engineering ensuresFor contractors managing VAV terminals or multi zone air handlers, the Siemens GMA151. 1P provides a reliable 62 lb in torque solution for precise air flow control. This OpenAir GMA Series actuator is engineered for modulating control utilizing a 2 to 10 VDC input signal, ensuring responsive positioning for return air, exhaust, or bypass dampers. Built with a brushless DC motor, this unit offers stall protection and consistent performance without the