120171 Model FS7-4SJ McDonnell Miller Flow Switch
$1,656.60
1 1/4″ BSPT, SPDT Snap Switch, Industrial Liquid Flow Switch with Stainless Steel Body for up to 1000 PSI Max Pressure with Trimmable Stainless Steel Paddles (Part Number 120171)
1 1/4″ BSPT, SPDT Snap Switch, Industrial Liquid Flow Switch with Stainless Steel Body for up to 1000 PSI Max Pressure with Trimmable Stainless Steel Paddles (Part Number 120171)
Features and Benefits
- Universal design serves the widest variety of large pipe applications, including heating and hydronic systems, air conditioning, refrigeration and process work
- 11⁄4″ NPT
- Brass with sealed tube construction
- Single pole, double throw snap switch
- Magnetic switching mechanism eliminates need for bellows
- Sensitivity adjusting screw makes flow adjustment easy
- Paddles can be trimmed to suit application needs
- Optional features
- Extended paddle arm – Model FS7-4L
- Two SPDT switches to make or break two separate circuits
- Stainless steel body and paddles
- BSPT threads
- Minimum temperature (fluid or ambient) 32°F (0°C)
- Maximum temperature 300°F (149°C)
- Maximum operating pressure
- 300 psi (21 kg/cm2)
- 1000 psi (70 kg/cm2) – Stainless Steel models
| Weight | 4 lbs |
|---|---|
| Dimensions | 9 × 9 × 9 in |
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