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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 closed switch position. It features a 1/2 in NPT connection size, polypropylene construction…

SKU 3G-OTH-90014

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, NC, 0.5GPM
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
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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 closed switch position. It features a 1/2 in NPT connection size, polypropylene construction, and a contact rating of 20 V DC. This model, MPN FS-150, NC, 0.5GPM, is designed for reliable flow detection in industrial systems.

Frequently Asked Questions

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

The GEMS SENSORS FS-150 liquid flow switch detects flow or no-flow conditions in industrial piping systems. It is commonly used for pump protection, cooling water monitoring, and process control where reliable flow detection is required.

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

The GEMS SENSORS FS-150 is a low pressure drop piston flow switch with a fixed set point and normally closed switch position. It has a 1/2 in NPT connection, polypropylene construction, and a contact rating of 20 V DC. The set point is 0.5 GPM.

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

3G Electric supplies the GEMS SENSORS FS-150 flow switch to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for a quote and lead time on this model.

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

Install the GEMS SENSORS FS-150 in a vertical or horizontal pipe run with flow in the direction of the arrow on the body. Use PTFE tape on the 1/2 in NPT threads. Ensure the switch is wired to a 20 V DC circuit and test the set point after installation.

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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GEMS SENSORS Liquid Flow Switch: Piston, Polypropylene, 3/4 in FNPT, 3/4 in Connection Size, FNPT (MPN FS-500, 170231). Key specifications — Brand: GEMS SENSORS; Set Point Type: Fixed; Switch Position: Normally Open; Contact Rating (DC): 20 V.
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GEMS SENSORS Liquid Flow Switch: Piston, Polypropylene, 1/2 in NPT, 1/2 in Connection Size, NPT (MPN FS-150, NO, 1.0GPM). Key specifications — Brand: GEMS SENSORS; Set Point Type: Fixed; Switch Position: Normally Open; Contact Rating (DC): 20 V.
GEMS SENSORS Liquid Flow Switch: Piston, Polypropylene, 1/2 in NPT, 1/2 in Connection Size, NPT (MPN FS-150, NO, 0.5GPM). Key specifications — Brand: GEMS SENSORS; Set Point Type: Fixed; Switch Position: Normally Open; Contact Rating (DC): 20 V.
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GEMS SENSORS Liquid Flow Switch: Piston, Polypropylene, 1/2 in NPT, 1/2 in Connection Size, NPT (MPN FS-150, NO, 0.5GPM). Key specifications — Brand: GEMS SENSORS; Set Point Type: Fixed; Switch Position: Normally Open; Contact Rating (DC): 20 V.
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