129664 Gems Sensors Inc, 129664 Datasheet
![Flow Switch](/photos/19/90/199057/3749631_sml.gif)
129664
Manufacturer Part Number
129664
Description
Flow Switch
Manufacturer
Gems Sensors Inc
Datasheet
1.129664.pdf
(1 pages)
Specifications of 129664
Pressure Max
14bar
Accuracy
+/-15%
Operating Pressure Range
200psig Max. At +70°F To +150°F
150psig Max. At +150°f To +212°f
Peak Reflow Compatible (260 C)
Circuitry
SPST
Port Size
0.5"
Body Material
Polypropylene
Flow Settings
4GPM (US)
Rohs Compliant
No
Connection Size
1/2"
Features
Low Pressure Drop
Leaded Process Compatible
No
Accuracy %
15%
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
SWITCHES
FLOW
FS-150 2.0 - 18.5 (l/min) with pre-adjusted set points
Straight flow path with low pressure drop
The FS-150 slim, inline switches reduce pressure drop to a minimum.
They incorporate a unique, dual-diameter, internal bore and piston configuration to
minimise 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
Operating pressure
Operating temperature
Set point accuracy
Set point differential
Switch
Inlet / outlet ports
Electrical termination
Mounting orientation
How to Order
Standard models (medium: water)
Specify part number based on flow setting and switch operation (see chart next column).
For liquids other than water
Special calibration is available from GEMS for media other than water. Please consult factory with your
requirements, including flow media, operating pressure, flow set point and liquid viscosity (SSU).
Order Numbers
Pressure drop - typical
48
set points
(l/min)
0.35
0.28
0.21
0.14
0.07
0
11.5
15.0
18.5
2.0
3.5
7.5
Test conducted with units in a horizontal position (terminals upwards), with water at 20°C
0
3.5
Part-Nr.
129664
(all pressure data related to water at +20°C)
Part-Nr.
129663
7.5
129660
129661
129662
129663
129664
129665
NO
Flow rate (l/min)
14 bar
-17 °C to +100 °C
±15%
20% max.
SPST, 20 VA
1/2" NPT male
6.3 mm (1/4") spade terminals (2)
Any position
11.5
15.0
Part-Nr.
129665
18.5
Part-Nr. 129660
Part-Nr. 129661
Part-Nr. 129662
129666
129667
129668
129669
129670
129671
23.0
NC
27.5
140 mm
Housing:
Piston:
O-Ring
Spring
1/2" NPT
SW 27
SW 34
Dimensions (in mm)
Polypropylene (hydrolytically stable)
Ryton®-R4 316 Stainless Steel
Viton®
316 Stainless Steel
6.3mm (1/4")
spade terminals
1/2" NPT
30.5mm
35mm
55mm