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Series Flow Switch FS-400P Gems Sensors

Gems Sensors Series Flow Switch

Designed for low cost flow/no-flow monitoring. This series is available with a clear, transparent PVC housing which is ideal for use where visual flow confirmation is desirable.
Stock
-1
Code
FS-400P

Gems Sensors Series Flow Switch

 Low Cost Units for Plastic Piping

Quick Specs... 

  • Flow Rate Settings: 0.5 GPM or 2.0 GPM 
  • Port Size: 3/4" or 1" IPS 
  • Primary Construction Material: Clear PVC 
  • Setting Type: Fixed 

Overview / Design Principle: 

Designed for low cost flow/no-flow monitoring. This series is available with a clear, transparent PVC housing which is ideal for use where visual flow confirmation is desirable. These corrosion-resistant switches offer broad chemical compatibility. With only one moving part, their rugged construction offers long life with minimum maintenance. Ideal for water heating or purification, equipment cooling and general chemical processing use. 

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, Shuttle and Bonnet: PVC
- O-Ring: Buna N
- Other Wetted Parts: Epoxy
 

Pressure Rating, Maximum 

- 120 PSIG (8.3 bar): @ +70°F to +100°F (+21°C to +37.8°C) 
- 50 PSIG (3.4 bar): @ +101°F to +120°F (+38.3°C to +48.9°C)
 

Operating Temperature, Maximum 

Clear Version +120°F (+48.9°C)  

Set Point Accuracy 

±20% 

Set Point Differential 

20% Maximum 

Switch 

SPST, 20 VA N.O. @ No Flow 

Inlet/Outlet Ports 

3/4" or 1" IPS and 1/2" NPT 

Mounting Attitude  

Vertical, Inlet Down  

Electrical Termination 

No. 22 AWG, 24" L., PVC Lead Wires 

 

Dimensions:

 3/4 " IPS Size (both ports)
 DimFS400P.gif 
A  1-5/8" (41.3 mm) DIA 
B  3-13/16" (96.8 mm) 
C  1-1/2" (38.1 mm) 
D  Housing 
E  Bonnet 
 1" IPS Size (both ports)
 DimFS400P.1.gif 
All other dimensions are the same as 3/4" size. 
 1/2" NPT
 DimFS400P2.gif 
A  4-3/8" (111.1 mm) 
B  2-1/16" (52.4 mm) 

Product Documentation

FS-400P Series
FS-400P Series - Download PDF
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