Belimo ZONE320S-50 Actuator 322838-753 replacing a lower-rated spring (such

replacing a lower-rated spring (such as a blue or green spring) with this 143-62-021-22 black/white spring allows the 143-80 regulator to reach an outlet range of 0

this hermetic unit provides a robust 120

this is specifically for ECM X-13 brushless motors

meaning the technician must physically press the button to restore the circuit after a 450°F trip occurs

Belimo ZONE320S-50 Actuator 322838-753 replacing a lower-rated spring (suchThe Belimo ZONE320S 50 Actuator is a robust 3 way zone valve engineered for precise flow control in hydronic HVAC systems. This assembly features a 3 4 inch sweat connection valve body, ideal for seamless integration into copper piping. With a substantial Cv rating of 5. 0, it ensures efficient fluid handling for chilled or hot water applications, accommodating up to 50% glycol. The integrated spring return actuator provides reliable on off control,