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Series Flow Switch FS-500 Gems Sensors

Gems Sensors Series Flow Switch

The FS-500 offers low cost flow monitoring with a variety of switch actuation points and low pressure drop. All wetted parts are polypropylene or stainless steel, making this switch ideal for a wide range of chemical and temperature requirements.
Stock
-1
Code
FS-500

Gems Sensors Series Flow Switch

 Low Cost Units for Threaded Plastic Piping

Quick Specs... 

  • Flow Rate Settings: 0.25 GPM to 5.0 GPM 
  • Port Size: 3/4" NPT 
  • Primary Construction Material: Polypropylene 
  • Setting Type: Fixed  

 

Overview / Design Principle: 

The FS-500 offers low cost flow monitoring with a variety of switch actuation points and low pressure drop. All wetted parts are polypropylene or stainless steel, making this switch ideal for a wide range of chemical and temperature requirements. The materials are also NSF or FDA approved for potable water treatment applications including chlorinators, purifiers and heaters. The FS-500 is ideal for equipment cooling including welders, lasers, etc. A J-box version with a 5 amp relay is also available for direct control of higher electrical loads, such as chlorinator pumps. 

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, Bonnet, Shuttle, Shuttle Cap: Polypropylene, Hydrolytically Stable
- O-Ring: Viton® or Buna N
- Spring: 316 Stainless Steel
- Retaining Clip: PH 15-7 Mo Stainless Steel
 

Operating Pressure, Maximum 

100 PSIG @ +70°F (6.9 bar @ 21°C)
50 PSIG @ +180°F (3.4 bar @ 82°C)
40 PSIG @ +210°F (2.8 bar @ 100°C)

Operating Temperature, Maximum 

0°F to 212°F (100°C)   

Set Point Accuracy 

±20%  

Set Point Differential 

±20% Maximum 

Switch 

SPST, N.O. Pilot Duty 20 VA, 120-240 VAC or VDC 

J-Box with 5A Relay 

Coil: 120 VAC 50/60 Hz
Contacts SPDT: 5A - 240 VAC Res
1/3 HP - 120 VAC
5A - 28 VDC Res. 
 

Inlet/Outlet Ports 

3/4" Female NPT  

Electric Termination  

Pilot 

No. 22 AWG, 24" Zip Chord Lead Wires 

J-Box 

6' PVC Cable  

 

 Dimensions:

 DimFS500.gif 
A  1.8" (45 mm) 
B  1.48" (37.5 mm) 
C  3.80" (96.5 mm) 
D  2.00" (50.8 mm) 
E  1.32" (33.5 mm) 

Product Documentation

FS-500 Series
FS-500 Series - Download PDF
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