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Series Adjustable Flow Switch FS-400 Gems Sensors

Gems Sensors Series Adjustable Flow Switch

Provides accurate flow detection in water and oil with 1% repeatability. Flow settings on the adjustable version can be easily changed without disassembly. A shuttle by-pass vane inside the housing
Stock
-1
Code
FS-400

Gems Sensors Series Adjustable Flow Switch

 General Purpose, 90° Flow Path

 
 

Quick Specs... 

  • Flow Rate Settings: 0.75 GPM to 14.0 GPM 
  • Port Size: 3/4" 
  • Primary Construction Material: Bronze 
  • Setting Type: Adjustable 

Overview / Design Principle: 

Provides accurate flow detection in water and oil with 1% repeatability. Flow settings on the adjustable version can be easily changed without disassembly. A shuttle by-pass vane inside the housing is controlled externally using an ordinary flat-blade screwdriver. These switches are ruggedly constructed of non-corrosive materials and resist shock and vibration. Suitable for triggering alarms on interlocking shutdown circuitry when flow rate is improper to protect bearings, gears and cooling systems. 

Applications: 

  • Protect Bearings or Gears: oil separators, fuel systems, pumps, compressors, presses 
  • Electronics or Machinery: heat exchangers, semiconductor manufacturing equipment, induction furnaces, radio transmitters 
  • Process Systems: water filtration and reverse osmosis, chlorinators, de-icers, sterilizers, evaporators

 

Specifications: 

 Wetted Materials 

- Housing: Bronze
- Shuttle: Delrin®
- Spring: 316 Stainless Steel
- O-Ring: Viton®
- Ceramic
 

Pressure Rating, Maximum 

- Operating: 400 PSI (27.6 bar) @ 100°F (+37.8°C) 
- Proof: 800 PSI (55.2 bar) @ 100°F (+37.8°C)
 

Operating Temperature 

-20°F to 180°F (-29°C to +82.2°C)  

Repeatability 

1% Maximum Deviation 

Set Point Accuracy 

± 10% 

Set Point Differential 

15% Maximum  

Switch 

SPDT, 20 VA  

Inlet/Outlet Ports  

3/4" NPT  

Electrical Termination 

No. 18 AWG, 24" L., Polymeric Lead Wires 

 

 Dimensions:

 DimFS400.gif 
A  1-7/16" HEX (36.5 mm) 
B  1/2" NPT 
C  1-3/8" (34.9 mm) 
D  1-3/8" (34.9 mm) 
E  3-27/32" (97.6 mm) 

 

 

Product Documentation

FS-400 Series Adjustable
FS-400 Series Adjustable - Download PDF
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