Flow Switches - GEMS SENSORS & CONTROLS - (Version JPG) - Page n° 24 - PDF Catalogue | Technical Documentation

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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

U.L. Recognized — File No. E31926 CSA Listed — File No. LR30200


	Wetted Materials
	Housing and Piston	Brass, Stainless Steel
	Spring	316 Stainless Steel
	Other Wetted Parts	Stainless Steel
	Operating Pressure, Maximum	1000 PSIG (69 bar)
	Operating Temperature	-20°F to +200°F (-29°C to +93.3°C)
	Set Point Accuracy	±15%
	Set Point Differential	20% Maximum
	Switch*	SPST, 20 VA
	Inlet/Outlet Ports	1/4" NPT
	Electrical Termination	No. 18 AWG, 24" L., PVC Lead Wires

Dimensions

— 5/8" (15.9 mm)

1/4" NPT

3/8" _.-(9.5 mm)J

(25.4 mm)

(69.9 mm)

125.4 mirò

1/4 NPT

*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).

WO LU

O _i

Ll_


Flow Settings GPM	Part Numbers
	Brass		Stainless Steel
	Normally Open @ No Flow	Normally Closed @ No Flow	Normally Open
0.10	70820 /	70826	26969
0.25	70821 /	70827	26970
0.50	70822/	70828	26971
0.75	70823/	70829	26972
1.00	70824/	70830	26973
1.50	70825	70831	26974

essure Drop - Typical



Part No. 708	*13-►*	--~~
y	/___.	Part	No.70820

o cc a

cc =>

00 00

Notes:

1. Flow settings are calibrated using water @ +70°F on increasing flow, with units in a vertical position (lead wires up).

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.

/ - Stock Items.

0.5

1.0

1.5

FLOW RATE - GPM

Tests conducted with units in vertical position (lead wires up) with water at +70°F (21°C).

Visit www.GemsSensors.com for most current information.

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Flow Switches - GEMS SENSORS & CONTROLS - #24

Solenoid valve, Magnetic level indicator, Relay, Indicator, Flow switch