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 open SPST switch position. It features a brass body with 1/4 in FNPT connections and a DC contact rating of 20…
SKU 3G-OTH-89682
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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 open SPST switch position. 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 70821.
Frequently Asked Questions
What is a GEMS SENSORS liquid flow switch used for?
A GEMS SENSORS liquid flow switch detects the presence or absence of liquid flow in a pipe. It is commonly used in industrial process control, HVAC, and water treatment systems to protect pumps and equipment from dry running or low-flow conditions.
What are the specifications of the GEMS SENSORS FS-927 flow switch?
The GEMS SENSORS FS-927 (MPN 70821) is a compact piston flow switch with a fixed set point. It has a brass body, 1/4 in FNPT connections, a normally open 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 pricing 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 with flow direction. Use PTFE tape on the 1/4 in FNPT threads. Wire the normally open SPST contacts to your control circuit. Test the set point after installation.
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.













