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GEMS SENSORS Liquid Flow Switch: Piston, PPS, 9/16 in UNF, 9/16 in Connection Size, UNF - General Purpose Piston Flow Switches
GEMS SENSORSGeneral Purpose Piston Flow Switches

GEMS SENSORS Liquid Flow Switch: Piston, PPS, 9/16 in UNF, 9/16 in Connection Size, UNF

The GEMS SENSORS Liquid Flow Switch: Piston is a general purpose piston flow switch with a fixed set point and normally open SPST switch position. It features a 20 V DC contact rating and a 9/16 in UNF connection…

SKU 3G-OTH-89190

Brand
GEMS SENSORS
Item
Liquid Flow Switch: Piston, PPS, 9/16 in UNF, 9/16 in Connection Size, UNF
Category
General Purpose Piston Flow Switches
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Technical Specifications

GEMS SENSORS
Manufacturer Part Number
FS-4, 122354
Type
PPS, UNF, SPST, Fixed
UNF
9/16 in
Set Point Type
Fixed
Connection Size
9/16 in
Switch Position
Normally Open
Contact Rating (DC)
20 V
View Full Spec Sheet

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GEMS SENSORS Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The GEMS SENSORS Liquid Flow Switch: Piston is a general purpose piston flow switch with a fixed set point and normally open SPST switch position. It features a 20 V DC contact rating and a 9/16 in UNF connection size, with a PPS body. This model is identified by manufacturer part numbers FS-4 and 122354.

Frequently Asked Questions

What is the GEMS SENSORS FS-4 liquid flow switch used for?

The GEMS SENSORS FS-4 liquid flow switch is used to detect the presence or absence of liquid flow in a pipe. It is commonly applied in industrial cooling systems, lubrication circuits, and water treatment equipment where a fixed set point and normally open SPST switch are required.

What are the specifications of the GEMS SENSORS piston flow switch?

The GEMS SENSORS piston flow switch has a fixed set point, normally open SPST switch position, and a 20 V DC contact rating. It features a PPS body with a 9/16 in UNF connection size. The manufacturer part numbers are FS-4 and 122354.

Where to buy the GEMS SENSORS FS-4 flow switch in worldwide?

You can source the GEMS SENSORS FS-4 flow switch through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time.

How to install a GEMS SENSORS piston flow switch?

Install the GEMS SENSORS piston flow switch in a vertical or horizontal pipe section with flow in the direction indicated on the body. Ensure the 9/16 in UNF connection is properly sealed. Wire the normally open SPST contacts to your control circuit rated for 20 V DC.

Used in

Common applications for GEMS SENSORS
Burner management — GEMS SENSORS FS-4 piston flow switch for monitoring cooling water flow in industrial burners
Pump protection — GEMS SENSORS FS-380 high-pressure flow switch to detect loss of flow in pump systems
Process control — GEMS SENSORS 230500 thermal-dispersion flow switch for low-flow detection in chemical processes
Cooling systems — GEMS SENSORS RFS flow sight with remote output for visual and electrical flow indication in heat exchangers
Water treatment — GEMS SENSORS FT-110 turbine flow sensor for measuring flow rates in filtration systems
Hydraulic systems — GEMS SENSORS FS-500 polypropylene piston flow switch for corrosive fluid monitoring in hydraulic circuits

GEMS SENSORS Products

3G Electric supplies GEMS SENSORS general purpose piston flow switches. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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