This shell is a reliable solution for contractors managing large-scale HVACR system protection and liquid line clean-up applications

the internal ball plug may be sticking

supporting systems with capacities up to 3

providing the high-torque performance required for industrial HVAC repair

this model features an integrated low gas pressure regulator designed to maintain a consistent output to the burner regardless of minor fluctuations in the supply line

Belimo AFRBUP-S Actuator 321142-301 This shell is a reliableThe Belimo AFRBUP S is a heavy duty, spring return damper actuator designed for reliable on off control in demanding HVAC systems. Engineering 180 in lb of torque, this unit provides failsafe operation for large control dampers, ensuring mechanical spring return during power interruptions. Its universal power supply accepts any input voltage from 24 to 240 VAC, simplifying inventory and field replacements for commercial HVAC maintenance. Equipped with