Description
it eliminates the guesswork of universal seals that fail under thermal expansion
stem and diaphragm assembly
High-Flow Capacity: Rated for up to 270
ensuring consistent airflow and thermal management for critical refrigeration and HVACR systems
a standard calibration check of the 5 to 10 psi range is recommended to account for wear on the existing diaphragm or linkage
McDonnell & Miller 247-2 Water Feeder R-410A it eliminates the guesswork ofThe McDonnell & Miller 247 2 (Part Number 133800) is a heavy duty mechanical water feeder specifically designed for steam and hot water boilers requiring consistent cold water makeup. This unit features a built in No. 2 Switch, providing integrated Low Water Cut Off (LWCO) functionality with two snap acting SPDT switches. This configuration ensures that if the water level drops below a safe threshold, the burner circuit is interrupted while
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy

























