Description
check system flow requirements before installing in heat pump liquid lines
Will this shield prevent internal condensation
it continuously communicates with system components to optimize performance
The 61-103-01 has a flow coefficient (Cv) of 1
McDonnell & Miller FS4-3S Switch 320720-756 check system flow requirements beforeThe McDonnell & Miller FS4 3S (Part Number 114641) is a rugged general purpose liquid flow switch specifically engineered for high demand hydronic and industrial applications. This 1" NPT flow switch features a high grade stainless steel body and hardened stainless steel bearings to minimize friction and prevent mechanical failure in the field. Designed as the direct replacement for FS4 3S E, it integrates a Single Pole Double Throw (SPDT) snap switch
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
























