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GEMS SENSORS Liquid Flow Switch: Piston, 316 Stainless Steel, 3/8 in NPT - High-Pressure-Rated Compact Flow Switches
GEMS SENSORSHigh-Pressure-Rated Compact Flow Switches

GEMS SENSORS Liquid Flow Switch: Piston, 316 Stainless Steel, 3/8 in NPT

The GEMS SENSORS Liquid Flow Switch: Piston is a high-pressure-rated compact flow switch with a fixed set point and normally open switch position. It features a 316 stainless steel construction with 3/8 in NPT…

SKU 3G-OTH-90423

Brand
GEMS SENSORS
Item
Liquid Flow Switch: Piston, 316 Stainless Steel, 3/8 in NPT
Category
High-Pressure-Rated Compact Flow Switches
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Technical Specifications

GEMS SENSORS
Manufacturer Part Number
FS-380, 179995
NPT
3/8 in
Set Point Type
Fixed
Connection Size
3/8 in
Stainless Steel
316
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 high-pressure-rated compact flow switch with a fixed set point and normally open switch position. It features a 316 stainless steel construction with 3/8 in NPT connection size and a 20 V DC contact rating. This product is identified by manufacturer part numbers FS-380 and 179995.

Frequently Asked Questions

What is the GEMS SENSORS FS-380 liquid flow switch used for?

The GEMS SENSORS FS-380 liquid flow switch is used to detect flow or no-flow conditions in high-pressure piping systems. Its 316 stainless steel construction and 3/8 in NPT connection make it suitable for industrial applications such as cooling systems, lubrication circuits, and process control where reliable flow monitoring is critical.

What are the specifications of the GEMS SENSORS FS-380 flow switch?

The GEMS SENSORS FS-380 is a piston-type liquid flow switch with a fixed set point and normally open switch position. It has a 316 stainless steel body, 3/8 in NPT connection size, and a 20 V DC contact rating. The manufacturer part numbers are FS-380 and 179995.

Where to buy the GEMS SENSORS FS-380 flow switch worldwide?

3G Electric supplies the GEMS SENSORS FS-380 flow switch worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time on this 316 stainless steel, 3/8 in NPT piston flow switch.

How to install a GEMS SENSORS FS-380 piston flow switch?

Install the GEMS SENSORS FS-380 flow switch in a vertical or horizontal pipe section with flow direction matching the arrow on the body. Use thread sealant on the 3/8 in NPT connection and ensure the normally open circuit is wired correctly for 20 V DC. Verify the fixed set point matches your system flow rate before commissioning.

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 high-pressure-rated compact 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, 316 Stainless Steel, 3/8 in NPT, 3/8 in Connection Size (MPN FS-380, 179996). 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, 3/8 in NPT, 3/8 in Connection Size, NPT (MPN FS-380P, 197082). Key specifications — Brand: GEMS SENSORS; Set Point Type: Fixed; Switch Position: Normally Open; Contact Rating (DC): 10 V.
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GEMS SENSORS Liquid Flow Switch: Piston, Polypropylene, 3/8 in NPT, 3/8 in Connection Size, NPT (MPN FS-380P, 197082). Key specifications — Brand: GEMS SENSORS; Set Point Type: Fixed; Switch Position: Normally Open; Contact Rating (DC): 10 V.
GEMS SENSORS Liquid Flow Switch: Piston, Polypropylene, 3/8 in NPT, 3/8 in Connection Size, NPT (MPN FS-380P, 197081). Key specifications — Brand: GEMS SENSORS; Set Point Type: Fixed; Switch Position: Normally Open; Contact Rating (DC): 10 V.
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GEMS SENSORS Liquid Flow Switch: Piston, Polypropylene, 3/8 in NPT, 3/8 in Connection Size, NPT (MPN FS-380P, 197081). Key specifications — Brand: GEMS SENSORS; Set Point Type: Fixed; Switch Position: Normally Open; Contact Rating (DC): 10 V.
GEMS SENSORS Liquid Flow Switch: Piston, Brass, 3/8 in NPT, 3/8 in Connection Size, NPT, SPST, Fixed (MPN FS-380, 168435). Key specifications — Brand: GEMS SENSORS; Set Point Type: Fixed; Switch Position: Normally Open; Contact Rating (DC): 20 V.
GEMS SENSORS
GEMS SENSORS Liquid Flow Switch: Piston, Brass, 3/8 in NPT, 3/8 in Connection Size, NPT, SPST, Fixed (MPN FS-380, 168435). 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, 3/8 in NPT, 3/8 in Connection Size, NPT (MPN FS-380P, 197083). Key specifications — Brand: GEMS SENSORS; Set Point Type: Fixed; Switch Position: Normally Open; Contact Rating (DC): 10 V.
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GEMS SENSORS Liquid Flow Switch: Piston, Polypropylene, 3/8 in NPT, 3/8 in Connection Size, NPT (MPN FS-380P, 197083). Key specifications — Brand: GEMS SENSORS; Set Point Type: Fixed; Switch Position: Normally Open; Contact Rating (DC): 10 V.