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Series Flow Switch FS-930 Gems Sensors

Gems Sensors Series Flow Switch

A unique, patented piston design assures accuracy within 20% over a full range of viscosities - from 40 to 1000 SSU. Ideal for use in applications where liquids of different viscosities are blended; or for use
Stock
-1
Code
FS-930

Gems Sensors Series Flow Switch

 Oil Flow Switch, Compensates for Viscosity Change In Fluids

Quick Specs... 

  • Flow Rate Settings: 0.1 GPM to 1.0 GPM 
  • Port Size: 1/4" NPT 
  • Primary Construction Material: Brass 
  • Setting Type: Fixed  

 

Overview / Design Principle: 

A unique, patented piston design assures accuracy within 20% over a full range of viscosities - from 40 to 1000 SSU. Ideal for use in applications where liquids of different viscosities are blended; or for use in lubrication systems where oil flow monitoring is critical at start-ups. Switch compensates for viscosity changes automatically. Each unit is factory preset, using 300 SSU oil, for actuation at specified flow rates.  

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: Brass
- Piston: Brass
- Spring: 316 Stainless Steel
- O-Ring: Viton®
- Other Wetted Parts: Epoxy
 

Pressure Rating 

- Operating, Maximum: 1000 PSIG (69 bar)
- Proof: 2500 PSIG (172.4 bar)
- Burst: 5000 PSIG (344.7 bar)
 

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, 20 VA 

Inlet/Outlet Ports 

1/4" NPT 

Electrical Termination 

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

Explosion-Proof Approvals 

U.L. Approved for Class I, Division 2, Groups A, B, C, D. Also available with FM approved, explosion proof junction box for Class 1, Division 1, Group D hazardous locations. 

 IMPORTANT REED SWITCH PROTECTION INFORMATION: Read before installing.

*Reference at 300 SSU set point.

 

 Dimensions:

 DimFS930.gif 
A  2-5/32" (54.7 mm) 
B  9/32" DIA. (7.1 mm), MTG. Holes (2) 
C  2-3/8" (60.3 mm) 
D  1/2" (12.7 mm) 
E  1-1/4" (31.7 mm) 
F  1/4" NPT Both Ports 
G  27/32" (21.4 mm) 
H  4-1/8" (104.7 mm) 
I  3/4" (19.0 mm) 
J  1-3/4" (44.4 mm) 
K  1" (25.4 mm) 

 

Product Documentation

FS-930 Series Flow Switch
FS-930 Series - Download PDF
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