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

The Belimo B231 is typically the valve body only

This OEM Lochinvar part is built to withstand high-ambient temperatures near the vent collar and maintains timing sequences essential for preventing flue gas spillage

and commercial HVAC systems

OEM Precision: Genuine Bradford White replacement part ensures exact fitment and manifold alignment without field modifications

ensuring proper shaft alignment and clearance within the fan guard

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