70830 Gems Sensors Inc, 70830 Datasheet
70830
Manufacturer Part Number
70830
Description
Flow Switch
Manufacturer
Gems Sensors Inc
Series
FS-927r
Datasheet
1.70821.pdf
(1 pages)
Specifications of 70830
Accuracy
+/-15%
Operating Pressure Range
1000psig Max.
Circuitry
SPST
Body Material
Brass
Flow Settings
1GPM (US)
Mounting Type
Conduit
Power Rating
20VA
Operating Temperature Range
0°C To +25°C
Port Size
0.25"
Port Style
NPT
Rohs Compliant
Yes
Connection Size
1/4"
Features
Normally Closed At No Flow
Accuracy %
15%
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
FS-927 Series – Small Design
for Tight Instrumentation Packages
Flow Rate Settings: 0.10 GPM to 1.50 GPM
Port Size: 1/4˝ NPT
Primary Construction Material: Brass, Stainless Steel
Setting Type: Fixed
Measuring only 1˝ x 2-3/4˝, these compact switches are ideal for use where space
is at a premium. Designed for use with water and oil, these switches are suitable for
high volume OEM applications. They are ideal for coolant or lubricant flow monitoring
in portable equipment and many other applications with space constraints.
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.
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).
Notes:
1. Flow settings are calibrated using water @ +70°F on increasing flow, with units in a vertical position
2. Care should be taken by specifiers to ensure fluid compatibility with the above listed wetted materials.
3. Use of 50 micron filtration is recommended.
Flow Settings
(lead wires up).
Housing and Piston
Spring
– Stock Items.
Other Wetted Parts
GPM
0.10
0.25
0.50
0.75
1.00
1.50
Normally Open @ No Flow
70820
70821
70822
70823
70824
70825
Brass
Normally Closed @ No Flow
Part Numbers
Visit www.GemsSensors.com for most current information.
Brass, Stainless Steel
316 Stainless Steel
Stainless Steel
1000 PSIG (69 bar)
-20°F to +200°F (-29°C to +93.3°C)
±15%
20% Maximum
SPST, 20 VA
1/4˝ NPT
No. 18 AWG, 24˝ L., PVC Lead Wires
70826
70827
70828
70829
70830
70831
Stainless Steel
Normally Open
26969
26970
26971
26972
26973
26974
Dimensions
Pressure Drop – Typical
4
3
2
1
0
0
Tests conducted with units in vertical position (lead wires up) with water at
+70°F (21°C).
Part No. 70823
1/4 " NPT
(69.9 mm)
2-3/4 "
0.5
OUT
(25.4 mm)
1 "
FLOW RATE - GPM
(9.5 mm)
U.L. Recognized —
File No. E31926
CSA Listed —
File No. LR30200
3/8 "
1.0
PISTON TYPE
(25.4 mm)
Part No. 70820
1 "
IN
1.5
(15.9 mm)
(25.4 mm)
5/8 "
1 "
1/4 " NPT
2
G-9
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