GEMS SENSORS Liquid Flow Switch: Piston, Brass, 1/4 in FNPT, 1/4 in Connection Size
The GEMS SENSORS Liquid Flow Switch is a compact piston flow switch with a fixed set point and normally closed SPST switch. It features a brass body with 1/4 in FNPT connections and a DC contact rating of 20 V. This…
SKU 3G-OTH-89793
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Product Description
The GEMS SENSORS Liquid Flow Switch is a compact piston flow switch with a fixed set point and normally closed SPST switch. It features a brass body with 1/4 in FNPT connections and a DC contact rating of 20 V. This model is identified by manufacturer part numbers FS-927 and 70831.
Frequently Asked Questions
What is a GEMS SENSORS liquid flow switch used for?
A GEMS SENSORS liquid flow switch detects flow or no-flow conditions in piping systems. It is used in industrial applications such as pump protection, cooling systems, and process control to trigger an alarm or shut down equipment when flow stops.
What are the specifications of the GEMS SENSORS FS-927 flow switch?
The GEMS SENSORS FS-927 (MPN 70831) is a compact piston flow switch with a brass body, 1/4 in FNPT connections, fixed set point, normally closed SPST switch, and a DC contact rating of 20 V. It is designed for liquid service.
Where to buy a GEMS SENSORS FS-927 flow switch worldwide?
3G Electric supplies the GEMS SENSORS FS-927 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 piston flow switch?
Install the GEMS SENSORS piston flow switch in a horizontal pipe section with the arrow on the body aligned to flow direction. Use PTFE tape on the 1/4 in FNPT threads. Wire the normally closed SPST switch per your control circuit. Test flow activation before finalizing.
Used in
Common applications for GEMS SENSORSGEMS SENSORS Products
3G Electric supplies GEMS SENSORS compact piston flow switches. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.













