Manual 21012921

Manual 21012921
PISTON TYPE
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.
U.L. RECOGNIZED —
FILE NO. E31926
CSA Listed —
File No. LR30200
Specifications
G
EM
®
S CO PLIAN
M
T
Ro H S
G
EM
®
S CO PLIAN
M
T
Polypropylene, Hydrolytically Stable, Glass Reinforced
Piston
Ryton® -R4, 316 Stainless Steel
O-Ring
Viton®
Spring
316 Stainless Steel
Dimensions
Operating Pressure, Maximum
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)
Operating Temperature
0°F to 212°F (-17.8°C to +100°C)
Set Point Accuracy
±15% 
Set Point Differential
20% Maximum
Switch*
SPST, 20 VA
Inlet/Outlet Ports
1/2˝ NPT Male
Electrical Termination
1/4˝ Male Quick Connect Terminals (2)
1-1/16"
(26.9 mm)
HEX
1/2" NPT
1/4" (6.3 mm)
QUICK CONNECT
TERMINALS
7/8"
(22.2 mm)
DIA. REF.
5-29/32"
(139.7 mm)
REF.
*See “Electrical Data” on Page X-5 for more information.
How To Order – Standard Models
1/2" NPT
Specify Part Number based on flow setting and switch operation.
1-3/8"
(34.9 mm) REF.
2-5/32"
(54.8 mm) REF.
Part Numbers
Flow Settings
GPM
Normally Open @ No Flow
Normally Closed @ No Flow
0.5
129660
129666
1.0
129661
129667
2.0
129662
129668
3.0
129663
129669
4.0
129664
129670
5.0
129665
129671
1-13/64"
(30.5 mm) REF.
1-5/16"
(33.3 mm)
HEX
Note: Cable output available. Please consult factory.
Pressure Drop - Typical
5
PRESSURE DROP (PSID)
Notes:
1. Flow settings are calibrated using water @ +70°F on increasing flow, with units in a horizontal position
(terminals up).
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.
­– Stock Items.
Ro H S
FLOW SWITCHES
Wetted Materials
Housing
Patent #
4.996.396
4
Part No.
129663
3
Part No.
129664
2
Part No.
129665
Part No. 129660
Part No. 129661
Part No. 129662
1
0
3
4
5
6
7
FLOW RATE - GPM
Tests conducted with units in a horizontal position with water at +70°F (21°C).
Data will vary slightly for vertically mounted units.
0
FS-150 Series / p1of1 / 30-JUL-14
Visit www.GemsSensors.com for most current information.
1
2
G-7
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