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GEMS SENSORS Liquid Flow Switch: Piston, Polypropylene, 1/2 in NPT, 1/2 in Connection Size - Low Pressure Drop Piston Flow Switches
GEMS SENSORSLow Pressure Drop Piston Flow Switches

GEMS SENSORS Liquid Flow Switch: Piston, Polypropylene, 1/2 in NPT, 1/2 in Connection Size

The GEMS SENSORS Liquid Flow Switch: Piston is a low pressure drop piston flow switch with a fixed set point and normally open switch position. It features a polypropylene body, 1/2 in NPT connection size, and a…

SKU 3G-OTH-89089

Brand
GEMS SENSORS
Item
Liquid Flow Switch: Piston, Polypropylene, 1/2 in NPT, 1/2 in Connection Size
Category
Low Pressure Drop Piston Flow Switches
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Technical Specifications

GEMS SENSORS
Manufacturer Part Number
FS-150, NO, 3.0GPM
Type
Polypropylene, NPT
NPT
1/2 in
Set Point Type
Fixed
Connection Size
1/2 in
Switch Position
Normally Open
Contact Rating (DC)
20 V
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GEMS SENSORS Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The GEMS SENSORS Liquid Flow Switch: Piston is a low pressure drop piston flow switch with a fixed set point and normally open switch position. It features a polypropylene body, 1/2 in NPT connection size, and a contact rating of 20 V DC. The manufacturer part number is FS-150, NO, 3.0GPM.

Frequently Asked Questions

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

The GEMS SENSORS FS-150 is a low pressure drop piston flow switch used to detect liquid flow or no-flow conditions in piping systems. It is commonly applied in water treatment, HVAC, and industrial process control to protect pumps and equipment from dry running or insufficient flow.

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

The GEMS SENSORS FS-150 is a fixed set point, normally open piston flow switch with a polypropylene body and 1/2 in NPT connections. It has a contact rating of 20 V DC and a set point of 3.0 GPM. The manufacturer part number is FS-150, NO, 3.0GPM.

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

3G Electric supplies the GEMS SENSORS FS-150 flow switch to customers worldwide. As a global industrial sourcing partner, we handle full logistics, customs clearance, and delivery to your site. Contact us for a quote and lead time on this item.

How to install a GEMS SENSORS piston flow switch?

Install the GEMS SENSORS FS-150 in a horizontal pipe section with the flow arrow aligned to flow direction. Ensure the pipe is full of liquid and free of air pockets. Use PTFE tape on the 1/2 in NPT threads and wire the normally open contacts per the 20 V DC rating. Test for proper actuation at 3.0 GPM.

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 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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