G-7
FLOW SWITCHES
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Flow Settings
GPM
Part Numbers
3/8˝ NPT Male 1/4˝ QDC Male*
0.07 216445** 216446**
0.15 209876 203206
0.25 197081 197091
0.50 197082 197092
1.00 197083 197093
1.50 197084 197094
2.00 197085 197095
Description Part Numbers
Straight Through with Shut-Off Valve
1/4˝ NPT Male Pipe Thread 195787 198063
1/4˝ BSPT Male Pipe Thread 198064 195788
3/8˝ NPT Male Pipe Thread 198065 198066
3/8˝ BSPT Male Pipe Thread 198067 198068
1/4˝ O.D., .27˝ I.D. (6 mm O.D., 4.3 mm I.D.) Polytube 198096 198097
3/8˝ O.D., 1/4˝ I.D. (9.5 mm O.D., 6 mm I.D.) Polytube 198099 198098
1/4˝ (6.4 mm) I.D. Barb 198401 198402
5/16˝ (7.9 mm) I.D. Barb 198403 198404
3/8˝ (9.5 mm) I.D. Barb 198408 198405
1/4˝ O.D. (6.4 mm) O.D. JG®198470 198406
3/8˝ O.D. (9.5 mm) O.D. JG®198459 198407
FLOW
FLOW
11/16˝ HEX
11/16˝ HEX
4.00˝
(102 mm)
4.22˝
(107 mm)
1.00˝
(25 mm)
1.00˝
(25 mm)
0.75˝
(19 mm)
ACROSS FLATS
0.75˝
(19 mm)
ACROSS FLATS
0.43˝
(11 mm)
DIA. TYPICAL
FLOW
FLOW
11/16˝ HEX
11/16˝ HEX
4.00˝
(102 mm)
4.22˝
(107 mm)
1.00˝
(25 mm)
1.00˝
(25 mm)
0.75˝
(19 mm)
ACROSS FLATS
0.75˝
(19 mm)
ACROSS FLATS
0.43˝
(11 mm)
DIA. TYPICAL
PISTON TYPE
FS-380P Series – Industrial Strength
Inline Plastic Flow Switch
Flow Rate Settings: 0.25 GPM to 2.00 GPM
Port Size: 3/8˝ NPT Male and 1/4˝ Quick Disconnect (QDC) Male
Primary Construction Material: Polypropylene
Setting Type: Fixed
This rugged inline flow switch offers the same superior performance to
non-clogging as its metal cousin (FS-380). The fixed set point and simple design
make it a dependable switch. The FS-380P is an ideal choice for coolant applications
requiring reliable flow detection in HVAC, semiconductor, welding, medical and
other industries. 1/4˝ quick disconnect units have a host of snap-on mating
adapters to fit most piping requirements.
Specifications
Wetted Materials
Housing Glass Reinforced Polypropylene
Piston PPS Composite
Spring 316 Stainless Steel
O-Ring Fluorocarbon
Operating Pressure 125 PSI (8.6 bar) @ 70°F (21°C),
50 PSI (3.4 bar) @ 212°F (100°C)
Operating Temperature 0°F to 212°F (-18°C to +100°C)
Set Point Accuracy 20% of Set Point
Set Point Differential 20% Maximum
Switch* SPST, 10VA, N.O. at no Flow
Electrical Termination 24˝ to 26˝ Polymeric Leads, 22 AWG
Filtration 100 Micron
Approvals CUL
*See “Electrical Data” on Page X-5 for more information.
How To Order
Specify Part Number based on flow settings. Adapters
for the 1/4˝ Quick Disconnect (QDC) Male unit are listed
in the table at right.
* See selection of adapters at right.
QDC = Quick Disconnect
** Set point accuracy 0.06 to 0.1 GPM
– Stock Items.
Dimensions
1/4˝ Quick Disconnect Male Adapter
See table at bottom right for adapter Part Numbers.
3/8˝ NPT Port
Acetal Adapters for 1/4˝ Quick Disconnect
Male Tube Fitting Units (180°F max.)
These adapters are available with or without an integral
shut-off valve. The shut-off valve will stop line flow
when the adapter is removed from the unit. Flow
resumes when connected.
Typical shown: 1/4˝ NPT Male
Pipe Thread with Shut-off Valve
JG® is a registered trademark of John Guest USA, Inc.
File No. E31926
