Belimo TFX24-S Actuator 320788-703 The Mueller W40123 2-5/8" Tee

The Mueller W40123 2-5/8" Tee is a high-performance wrot copper fitting engineered for heavy-duty HVACR piping systems and large-scale potable water supply applications

Check your specific model number for fitment

Ensure you verify the rotation of the existing blower wheel from the lead end before installation to prevent reversed airflow

If the union housing or tailpiece is cracked or heavily pitted from corrosion

For direct steam applications

Belimo TFX24-S Actuator 320788-703 The Mueller W40123 2-5/8" TeeThe Belimo TFX24 S Actuator is a reliable spring return damper actuator designed for on off control in HVAC systems. Providing 22 in lb torque, this compact unit is engineered for small dampers and air boxes where tight space and failsafe operation are critical. Operating on either 24VAC or 24VDC, the TFX24 S draws minimal power, making it an efficient choice for large scale HVAC automation retrofits. This model features an integrated SPDT auxiliary