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Series Flow Switch FS-4 Gems Sensors

Gems Sensors Series Flow Switch

Low Cost, Molded Plastic Construction. New molded body design features uniform wall thickness for more reliable performance!
Stock
-1
Code
FS-4

Gems Sensors Series Flow Switch

 Low Cost, Molded Plastic Construction. New molded body design features uniform wall thickness for more reliable performance!

Quick Specs... 

  • Flow Rate Settings: 0.1 GPM to 1.5 GPM 
  • Port Size: 9/16" - 18 UNF 
  • Primary Construction Material: Ryton®  
  • Setting Type: Fixed 
  • More robust porting hubs offer better structural integrity 
  • Molded cable grommet offers improved moisture protection

 

Overview / Design Principle: 

The FS-4 Series makes flow protection economical for a broad range of industrial applications such as welders, lubrication systems, medical sterilizers and laundry chemicals dispensing.  

Applications: 

  • Electronic Equipment: Laser Heads, Welders, Power Supplies, High Speed Spindles, X-Ray Tubes, Semiconductor Equipment 
  • Bearings or Gears: Presses, Rotating Equipment, Conveyors, Machine Tools, Robotics 
  • Processing & Dispensing Equipment: Water Purifications and Filtering, X-Ray Film Processing, Beverage Dispensing, Chemical Additives, Gas Sampling, Distilling

 

Specifications: 

Wetted Materials 

- Housing and Piston: Ryton® R4
- Spring: 316 Stainless Steel
- O-Ring: Viton®
- Other Wetted Parts: Epoxy
 

Operating Pressure, Maximum 

250 PSIG (17.24 bar) @ 70°F (21°C)  

Operating Temperature 

0°F to 225°F (17°C to +107°C) 

Set Point Accuracy 

±15% Maximum 

Set Point Differential 

20% Maximum  

Switch 

- SPST: 20 VA (120-240 VAC) 18 AWG, Zip Cord, 24-26" Long
- SPDT: 20 VA (240 VAC Max) 18 AWG, PVC 24" long leads
 

Recommended Filtration 

50 Microns or better  

Inlet/Outlet Ports 

9/16" -18 UNF-2B Thread   

 IMPORTANT REED SWITCH PROTECTION INFORMATION: Read before installing.

*Polysulfone bodies and fittings available; consult factory.
 

Port Adapters for FS-4 
fs4Adapters.gif Converst 9/16" threaded ports to NPT or barbed connection. Made of Ryton-R4 or polypropylene with O-Rings in place.
 

CAUTION: Do not exceed 15 in./lbs. maximum torque when installing adapter fittings. 

Material  Adpater Size  Part Numbers 
Ryton  1/8" NPT*  123028  
1/4" NPT*  123029  
Polypropylene  1/4" NPT*  158602  
1/2" Barb**  158603  

 

Stock Items
* Wrench flats provide for proper assembly.
**Accepts 1/2" I.D. flexible hose
 

 

Dimensions:

 1/4" NPT Mounting

 DimFS4.gif 
A  3.64" 
B  1-1/4" (31.8 mm) 
C  9/16" (14.3 mm) 
D  1" (25.4 mm) 
E  .920" (23.3 mm) DIA. 
9/16"-18 UNF-2B THD. Both Ports 

Product Documentation

FS-4 Series
FS-4 Series - Download PDF
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