165842 Gems Sensors Inc, 165842 Datasheet
165842
Manufacturer Part Number
165842
Description
Flow Sensor
Manufacturer
Gems Sensors Inc
Datasheet
1.165840.pdf
(1 pages)
Specifications of 165842
Pressure Max
150psi
Accuracy
0.5 GPM
Operating Pressure Range
150psi At 70°F
50psi At 212°f
Body Material
Flow Settings
0.5GPM (US)
Mounting Type
1/4-inch NPT Male
Power Rating
20VA
Port Size
0.25"
Body Material
Noryl?
Connection Size
1/4"
Features
Low Flow
Flow Rate Min
0.50GPM (US)
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
F-4
FS-3 Series – Compact, Low Flow Units
for Clean Potable Water Applications
Flow Rate Settings:
Port Size: 1/4˝ Male NPT
Primary Construction Material: Noryl
Setting Type: Fixed
These ultra compact switches have been specifi cally designed for reliable operation
in clean post-fi ltered water. They are made primarily of Noryl
materials also FDA or NSF compliant. FS-3 switches are instrument-quality, yet
affordably priced for pure water equipment...from U.V. Lamp switching to Filter Life
Monitoring.
Specifications
Wetted Materials*
Pressure Rating
Operating Temperature
Required Filtration
Switch**
Electrical Termination
Pressure Drop Data
Typical P vs Flow Rate
How To Order
Specify the FS-3 Flow Switch using part numbers tabulated below. Set points other
than those listed are available as special order; contact GEMS with your requirements.
Notes:
1. This device is designed to provide Flow/No Flow sensing. Tabulated set points specify maximum contact
2. Flow settings are based on a vertical position (inlet port down), using water (for liquids) or air (for gases) at
3. Use of 50 micron, or better, fi ltration is required.
Switch Actuation
** See “Electrical Data” on Page X-5 for more information.
Liquids (GPM)
closure thresholds on increasing fl uid fl ow. Re-establishment of a Normally Open contact occurs on
decreasing fl uid fl ow by 0 GPM.
+70°F on increasing fl ow. Some variation in set point actuation will occur with other gases or liquids, and
in other mounting orientations.
* Materials of construction are either FDA or NSF compliant.
† N.O. switches in No Flow condition are standard.
– Stock Items.
www.gemssensors.com
Set Point for
1.5
0.5
Housing and Barbs
Piston
Spring and Stop Pin
2
1
0
0
0.05
0.25
0.50
1.00
0.5
Part Numbers
for Liquids
FLOW RATE (GPM, WATER)
165840
165841
165842
165843
Liquids: 0.05 GPM to 1.00 GPM
Gases: 25 CFH to 12 CFM
1
Noryl
Noryl
316 Stainless Steel
150 PSI @ 70°F; 50 PSI @ 212°F
0°F to 212°F (100°C), Max.
50 Micron or Better
SPST, N.O.
No. 22 AWG, 18˝ L., PVC Lead Wires
®
®
2.5 CFM
1.5
Switch Actuation Set Point
25 CFH
and Epoxy
1 CFM
5 CFM
5 PSI
†
Pilot Duty 20 VA, 120-240 VAC or VDC
®
for Gases
2
60 SCFH
100 PSI
2.6 CFM
5.6 CFM
12 CFM
®
, with all other wetted
Part Numbers
165840-Air
165841-Air
165842-Air
165843-Air
for Gases
Dimensions
Other port sizes available; please call factory.
Special Requirements.
GEMS caters to OEM needs with special confi gurations,
including Gas (Air) fl ow, and customer specifi ed
electrical terminations.
1/4˝ MNPT
PORTS (2)
(25.4 mm)
1.00˝
U.L. RECOGNIZED —
FILE NO. E31926
(104 mm)
(19.7 mm)
4.10˝
.775˝
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