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GEMS SENSORS Liquid Flow Switch: Piston, Brass, 1/4 in FNPT, 1/4 in Connection Size - Compact Piston Flow Switches
GEMS SENSORSCompact Piston Flow Switches

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

Also listed as: FS92770821 · FS 927 70821 · FS-927-70821

Brand
GEMS SENSORS
Item
Liquid Flow Switch: Piston, Brass, 1/4 in FNPT, 1/4 in Connection Size
Category
Compact Piston Flow Switches
Available to Order
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Worldwide Shipping
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Technical specs
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Local availability & support — the Philippines

Delivery
5–8 business days door-to-door; Bureau of Customs clearance typically 2–4 business days.
Payment
Invoicing in PHP or USD. Bank transfer and corporate PO accepted.
Ships to
Manila, Quezon City, Cebu, Davao, Batangas

Technical Specifications

GEMS SENSORS
Manufacturer Part Number
FS-927, 70821
Type
Brass, FNPT, SPST
FNPT
1/4 in
Set Point Type
Fixed
Connection Size
1/4 in
Switch Position
Normally Open
Contact Rating (DC)
20 V

Technical Documents

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GEMS SENSORS Products
3G Electric (S) Pte. Ltd. — Singapore

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.

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

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 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 compact 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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Compatible alternatives & equivalents

Cross-referenced by specification & description
GEMS SENSORS Liquid Flow Switch: Piston, Brass, 1/4 in FNPT, 1/4 in Connection Size, FNPT, SPST (MPN FS-927, 70822)
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GEMS SENSORS Liquid Flow Switch: Piston, Brass, 1/4 in FNPT, 1/4 in Connection Size, FNPT, SPST (MPN FS-927, 70822)
GEMS SENSORS Liquid Flow Switch: Piston, Brass, 1/4 in FNPT, 1/4 in Connection Size, FNPT, SPST (MPN FS-927, 70826)
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GEMS SENSORS Liquid Flow Switch: Piston, Brass, 1/4 in FNPT, 1/4 in Connection Size, FNPT, SPST (MPN FS-927, 70826)
GEMS SENSORS Liquid Flow Switch: Piston, Brass, 3/8 in NPT, 3/8 in Connection Size, NPT, SPST, Fixed (MPN FS-380, 178353)
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GEMS SENSORS Liquid Flow Switch: Piston, Brass, 3/8 in NPT, 3/8 in Connection Size, NPT, SPST, Fixed (MPN FS-380, 178353)
GEMS SENSORS Liquid Flow Switch: Piston, Brass, 3/8 in NPT, 3/8 in Connection Size, NPT, SPST, Fixed (MPN FS-380, 168434)
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GEMS SENSORS Liquid Flow Switch: Piston, Brass, 3/8 in NPT, 3/8 in Connection Size, NPT, SPST, Fixed (MPN FS-380, 168434)

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