Description
McDonnell & Miller FS7-4E Explosion Proof Industrial Liquid Flow Switch
The McDonnell & Miller FS7-4E is a heavy-duty, explosion proof industrial liquid flow switch engineered for demanding commercial and industrial HVAC and process applications. Featuring a robust 1-1/4″ NPT connection and a reliable SPDT (Single Pole Double Throw) snap-action switch mechanism, this unit delivers precise, dependable flow detection in systems operating at pressures up to 300 PSI. Its explosion proof construction makes it suitable for use in hazardous environments where safety and reliability are paramount.
Key Features
- 1-1/4″ NPT pipe connection for straightforward installation into existing piping systems
- SPDT snap-action switch for reliable, positive switching action
- Explosion proof design rated for use in hazardous industrial environments
- Maximum operating pressure of 300 PSI for high-pressure system compatibility
- Trimmable stainless steel paddles allow field adjustment to suit various pipe sizes and flow rates
- Stainless steel paddle construction provides excellent corrosion resistance and long service life
- Part Number: 120100
Applications
- Industrial HVAC and hydronic systems
- Chilled water and hot water piping circuits
- Process cooling and heating systems
- Pump protection and flow verification
- Hazardous location installations requiring explosion proof rated equipment
Product Specifications
- Brand: McDonnell & Miller (Xylem)
- Model: FS7-4E
- Part Number: 120100
- Connection Size: 1-1/4″ NPT
- Switch Type: SPDT Snap Switch
- Maximum Pressure: 300 PSI
- Paddle Material: Stainless Steel (Trimmable)
- Construction: Explosion Proof
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