KMC Controls HLO-1016 Collar 30067439-890 If the circuit remains open

If the circuit remains open at lower temperatures

you ensure the integrity of the boiler’s safety controls and optimize performance for residential and commercial heating loops

as it prevents convective heat loss and ensures proper venting of flue gases

designed specifically for a clockwise (CW) rotation

Can I use this for a short-shaft installation

KMC Controls HLO-1016 Collar 30067439-890 If the circuit remains openThe KMC Controls HLO 1016 Collar is a precision engineered actuator accessory designed to ensure a non slip, secure connection between actuators and shaft driven HVAC equipment. This retaining collar is specifically optimized for use with 1 2 inch round or 3 8 inch square shafts, providing the high torque stability required for consistent damper and valve positioning. As a critical component for shaft adapter alignment, the HLO 1016 prevents