Siemens Building Technology 656-600 Valve Actuator 319825-402 The Belimo B231 is typically

The Belimo B231 is typically the valve body only

Is the Copeland 050-0445-01 a universal motor

ensuring proper shaft alignment and clearance within the fan guard

It is standard practice for contractors to inspect and replace the mounting gasket to ensure a gas-tight seal on the boiler burner plate

Siemens Building Technology 656-600 Valve Actuator 319825-402 The Belimo B231 is typicallyThe Siemens 656 600 is a heavy duty pneumatic valve actuator replacement top designed for seamless integration with Siemens Powermite series valves. This replacement actuator with trim is engineered for 3 4" line sizes and features a normally open (NO) fail safe position, ensuring the valve remains open upon loss of control air. Built for precision in pneumatic HVAC controls, the 656 600 operates on a standard 3 8 psi spring range, providing reliable