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Series Flow Switch FS-200 Gems Sensors

Gems Sensors Series Flow Switch

The FS-200 Series offers accurate flow detection, with 1% repeatability, over a broad range of flow settings and port sizes. Its durable construction delivers long-life reliability in either water or oil. Generous flow paths keep pressure drop low.
Stock
-1
Code
FS-200

Gems Sensors Series Flow Switch

 General Purpose, Straight-Through Flow Path

 
 

Quick Specs... 

  • Flow Rate Settings: 0.5 GPM to 100.0 GPM 
  • Port Size: 1" NPT to 2" NPT 
  • Primary Construction Material: Bronze or Stainless Steel 
  • Setting Type: Fixed 

Overview / Design Principle: 

The FS-200 Series offers accurate flow detection, with 1% repeatability, over a broad range of flow settings and port sizes. Its durable construction delivers long-life reliability in either water or oil. Generous flow paths keep pressure drop low. These switches are ideal for detection of improper flow rates in high volume lubrication, cooling or process systems. 

FS-200 Adjustable Series switches offer the same accuracy and are as rugged as those with fixed settings, but provide one additional feature: external adjustability. With these versatile switches your choice of flow settings is diverse within a given range. An ordinary, flat-blade screwdriver is all that's required for the actuation adjustment.  

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 or 316 Stainless Steel
- Shuttle: Teflon®
- Bonnet: Bronze or Stainless Steel
- Spring: 316 Stainless Steel
- Other Wetted Parts: Viton®, Ceramic
 

Pressure Rating  

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

Operating Temperature  

-20°F to +300°F (-29°C to +148.9°C)  

Repeatability  

1% Maximum Deviation 

Set Point Accuracy 

± 10% 

Set Point Differential 

15% Maximum   

Switch 

SPDT, 20VA 

Electrical Termination 

No. 18 AWG, 24" L., Polymeric Lead Wires
Red NC, Black Common, Orange NO

 IMPORTANT REED SWITCH PROTECTION INFORMATION: Read before installing.

FS-200 Series Flow Switches are U.L. Approved for Class I, Division 2, Groups A, B, C, D hazardous areas.
 
They are also available with FM-approved explosion-proof junction box for Class I, Division 1 Group D hazardous locations. Units must be completely assembled at Gems.

 

 Dimensions:

 DimFS200.gif 
1  #18 AWG., 24" L., Polymeric Jacket 
2  1/2" NPT 
3  Bonnet 
4  Switch Housing 
5  Inlet Port 
6  NPT Port 
 
Port Size NPT 
A inch (mm)  B inch (mm)  C Hex inch (mm) 
1"  3-1/4 (82.6)  3 (76.2)  1-25/32 (45.2) 
1 1/4"  4 (101.6)  3-3/16 (80.9)  2-3/16 (55.5) 
1 1/4" ss  3/8" NPT Mounting  3-3/16 (80.9)  2-3/16 (55.5) 
1 1/2"  4-1/2 (114.3)  3-1/2 (80.9)  2-1/2 (63.5) 
2"  5-3/8 (136.5) 
4 (101.6) 
3-3/32 (78.5) 

 

Product Documentation

FS-200 Series
FS-200 Series - Download PDF
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