129661 Gems Sensors Inc, 129661 Datasheet
129661
Manufacturer Part Number
129661
Description
Flow Sensor
Manufacturer
Gems Sensors Inc
Datasheet
1.129660.pdf
(1 pages)
Specifications of 129661
Accuracy
+/-15%
Operating Pressure Range
200psig Max. At +70°F To +150°F
150psig Max. At +150°f To +212°f
Sensing Accuracy
Body Material
Polypropylene
Flow Settings
1GPM (US)
Port Size
0.5"
Connection Size
1/2"
Features
Low Pressure Drop
Flow Rate Min
1GPM (US)
Leaded Process Compatible
No
Mounting Type
1/2-inch NPT
Rohs Compliant
No
Accuracy %
15%
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
FS-150 Series – Straight Flow Path with
Low Pressure Drop
Flow Rate Settings: Liquids: 0.5 GPM to 5 GPM
Port Size: 1/2˝ NPT
Primary Construction Material: Polypropylene
Setting Type: Fixed
These slim, inline switches reduce pressure drop to a minimum. They incorporate
a unique, dual-diameter, internal bore and piston configuration to minimize flow
constriction. Liquids are able to smoothly pass around the piston and flow through
the switch with little pressure loss to the down stream line.
Specifications
Wetted Materials
Operating Pressure, Maximum
Operating Temperature
Set Point Accuracy
Set Point Differential
Switch*
Inlet/Outlet Ports
Electrical Termination
*See “Electrical Data” on Page X-5 for more information.
How To Order – Standard Models
Specify Part Number based on flow setting and switch operation.
Notes:
1. Flow settings are calibrated using water @ +70°F on increasing flow, with units in a horizontal position
2. Care should be taken by specifiers to ensure fluid compatibility with the above listed wetted materials.
3. Use of 150 micron filtration is recommended.
(terminals up).
Housing
Piston
O-Ring
Spring
– Stock Items.
Flow Settings
GPM
0.5
1.0
2.0
3.0
4.0
5.0
Normally Open @ No Flow
Polypropylene, Hydrolytically Stable, Glass Reinforced
Ryton
Viton
316 Stainless Steel
200 PSIG (13.8 bar)
@+70°F to +150°F (+21.1°C to 65.5°C)
150 PSIG (10.3 bar)
@+150°F to +212°F (+65.5°C to +100°C)
0°F to 212°F (-17.8°C to +100°C)
±15%
20% Maximum
SPST, 20 VA
1/2˝ NPT Male
1/4˝ Male Quick Connect Terminals (2)
129660
129661
129662
129663
129664
129665
®
®
-R4, 316 Stainless Steel
Visit www.GemsSensors.com for most current information.
Part Numbers
Normally Closed @ No Flow
129666
129667
129668
129669
129670
129671
Dimensions
Note: Cable output available. Please consult factory.
Pressure Drop - Typical
5
4
3
2
1
0
Tests conducted with units in a horizontal position with water at +70°F (21°C).
Data will vary slightly for vertically mounted units.
0
(22.2 mm)
DIA. REF.
1
7/8"
Part No.
129664
(139.7 mm)
5-29/32"
Part No.
129663
REF.
U.L. RECOGNIZED —
FILE NO. E31926
CSA Listed —
File No. LR30200
(26.9 mm)
(33.3 mm)
1/2" NPT
1-1/16"
1-5/16"
2
HEX
HEX
FLOW RATE - GPM
3
4
PISTON TYPE
1/2" NPT
QUICK CONNECT
Part No.
1/4" (6.3 mm)
129665
TERMINALS
(34.9 mm) REF.
(54.8 mm) REF.
(30.5 mm) REF.
5
2-5/32"
1-3/8"
1-13/64"
Part No. 129660
Part No. 129661
Part No. 129662
Patent #
4.996.396
6
7
G-5
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