Universal mechanical flow switch for hydronic and water systems. Detects flow in 1"–8" pipes and controls pumps, alarms, burners, and motors via SPDT relay contact. NEMA 4 enclosure rated for outdoor use; includes four stainless steel paddles and adjustable sensitivity screw. cULus listed.
Xylem-McDonnell & Miller FS254 Flow Switch NEMA 4 1" NPT
Xylem-McDonnell & Miller
$285.95
In Stock — 10+ available
- OEM / cross-reference
- McDonnell & Miller FS-8W, Hydrolevel FS204, Taco IFSWS
- Replaces
- McDonnell & Miller FS-8W
- Fits brands
- Johnson/Penn, Potter/Taco, Watts, Hydrolevel
- SKU:
- FS254
- Product Type:
- Flow Switch
- Subcategory:
- Mechanical Liquid Flow Switch
- Application:
- Residential/Commercial
- System Type:
- Boiler, Hydronic, Circulator
- Installation Type:
- OEM Replacement
- Voltage:
- 120/240V AC
- Voltage Class:
- Line Voltage
- Phase:
- Single Phase
- Mounting Type:
- Threaded Pipe Connection
- Temperature Range:
- 32°F to 250°F
- Pressure Rating:
- 160 PSI
- Inlet Size:
- 1" NPT Male
- Connection Type:
- NPT
- Connection / Joint:
- NPT
- Material:
- Stainless Steel (paddles), EPDM O-ring seal
- Control Type:
- Non-Programmable
- Switch Action:
- SPDT