G-6
FLOW SWITCHES
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Flow Settings
GPM1
3/8˝ NPT Male 3/8˝ Tube Compression Fitting 1/2˝ NPT Male
Brass Stainless Steel Stainless Steel Brass
0.15 181130 193482 212136 —
0.25 168432 179992 177592 192562
0.50 168433 179993 177593 192563
1.00 168434 179994 177594 192564
1.50 168435 179995 177595 192566
2.00 178353 179996 225525 192567
Gems FS-380
4.0˝
(102 mm)
1.25˝
(32 mm)
FLOW
7/8˝ -HEX
Gems FS-380
3.45˝
(88 mm)
0.85˝
(22 mm)
1.00˝
(25 mm)
3/4˝ -HEX
FLOW
11/16˝ -HEX
4.02˝
(102 mm)
0.86˝
(22 mm)
1.13˝
(29 mm)
FLOW
14
12
10
8
6
4
2
0
01234567
FLOW RATE - GPM
PSI DROP
SPRING 170342
1.5 + 2.0 GPM
SETTINGS
SPRING 10397
0.25 - 1.00 GPM
SETTINGS
FS-380 Series – Compact Flow Switch
for High Inline Pressures
Flow Rate Settings: 0.15 GPM to 2.00 GPM
Port Size: 3/8˝ NPT Male
Primary Construction Material: Brass or Stainless Steel
Setting Type: Fixed
These rugged inline flow switches use 100 micron filtration and are less susceptible
to clogging than other high-pressure inline flow switches. The one-piece magnetic
PPS composite piston makes the FS-380 ideal for high-pressure applications such
as industrial cleaning equipment. The FS-380 is also an excellent choice for semicon
cooling applications where simple design and reliable operation are required.
Specifications
Wetted Materials
Housing Brass or 316 Stainless Steel
Piston PPS Composite, Epoxy
Spring 316 Stainless Steel
O-Ring Fluorocarbon
Operating Pressure, Maximum 1500 PSI (107 bar)
Operating Temperature -20°F to +275°F (-28.8°C to +135°C)
Set Point Accuracy ±20% Maximum
Set Point Differential 20% Maximum
Switch* SPST, 20VA, N.O. at no Flow
Electrical Termination No. 22 AWG, 24˝ to 26˝ Polymeric leads
*See “Electrical Data” on Page X-5 for more information.
How To Order – Standard Models
Specify Part Number based on flow settings.
Spacing
To prevent sensor to sensor magnetic field interference, follow the spacing
guidelines below.
U.L. Recognized
File No. E31926
Dimensions
1/2˝ NPT Ports
3/8˝ NPT Ports
3/8˝ Tube End Compression Fitting
Pressure Drop – Typical
– Stock Items.
Note:
1. Flow settings are calibrated using water @ 70°F on increasing flow with units in horizontal position.
Consult factory for other fluid compatibility.
2 13/64˝
1 1/4˝2 3/8˝
1 1/2˝
FLOW
Gems FS-380
FLOW
Gems FS-380
FLOW
Gems FS-380
FLOW
Gems FS-380
NOTE SWITCH
ORIENTATION
