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GEMS SENSORS FS-150 Low Pressure Drop Piston Flow Switch - Low Pressure Drop Piston Flow Switches
GEMS SENSORSLow Pressure Drop Piston Flow Switches

GEMS SENSORS FS-150 Low Pressure Drop Piston Flow Switch

The GEMS SENSORS Liquid Flow Switch is a low pressure drop piston flow switch with a fixed set point and normally closed switch position. It features a polypropylene body with 1/2 in NPT connections and a contact…

SKU 3G-OTH-90026

Also listed as: FS150NC10GPM · FS 150 NC 1 0GPM · FS-150-NC-1-0GPM

Brand
GEMS SENSORS
Item
FS-150 Low Pressure Drop Piston Flow Switch
Part Number
FS-150, NC, 1.0GPM
Category
Low Pressure Drop Piston Flow Switches
Available to Order
Also known as:FS-150, NC, 1.0GPMGEMS SENSORS
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

GEMS SENSORS
Manufacturer Part Number
FS-150, NC, 1.0GPM
Type
Polypropylene, NPT
NPT
1/2 in
Set Point Type
Fixed
Connection Size
1/2 in
Switch Position
Normally Closed
Contact Rating (DC)
20 V

Technical Documents

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

Product Description

The GEMS SENSORS Liquid Flow Switch is a low pressure drop piston flow switch with a fixed set point and normally closed switch position. It features a polypropylene body with 1/2 in NPT connections and a contact rating of 20 V DC. The switch is designed for flow detection applications where a fixed 1.0 GPM set point is required.

Frequently Asked Questions

What is the GEMS SENSORS FS-150 liquid flow switch used for?

The GEMS SENSORS FS-150 is a low pressure drop piston flow switch used for flow detection in industrial piping systems. It is ideal for applications requiring a fixed 1.0 GPM set point, such as cooling water lines, lubrication systems, and process control loops where reliable flow/no-flow indication is needed.

What are the specifications of the GEMS SENSORS FS-150 flow switch?

The GEMS SENSORS FS-150 is a polypropylene piston flow switch with 1/2 in NPT connections. It has a fixed set point, normally closed switch position, and a contact rating of 20 V DC. The manufacturer part number is FS-150, NC, 1.0GPM. It is designed for low pressure drop flow detection at 1.0 GPM.

Where to buy the GEMS SENSORS FS-150 flow switch worldwide?

3G Electric supplies the GEMS SENSORS FS-150 liquid flow switch worldwide. As a global industrial equipment distributor since 1990, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time; we source and deliver this fixed set point, normally closed piston flow switch globally.

How to install the GEMS SENSORS FS-150 piston flow switch?

Install the GEMS SENSORS FS-150 in a horizontal pipe section with the flow arrow aligned to flow direction. Use PTFE tape on the 1/2 in NPT threads to prevent leaks. Ensure the switch is wired to a 20 V DC circuit per the normally closed configuration. Test the set point at 1.0 GPM to verify proper flow detection.

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
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GEMS SENSORS Products

3G Electric supplies GEMS SENSORS low pressure drop 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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