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GEMS SENSORS FS-550 Insertion-Style Hazardous-Location Liquid Flow Switch - Insertion-Style Hazardous-Location Switches for Liquids
GEMS SENSORSInsertion-Style Hazardous-Location Switches for Liquids

GEMS SENSORS FS-550 Insertion-Style Hazardous-Location Liquid Flow Switch

The GEMS SENSORS Liquid Flow Switch: Paddle is an insertion-style hazardous-location switch for liquids, designed for pipe sizes of 1-1/2 in. This 316 Stainless Steel unit features a 1 in NPT connection and carries a…

SKU 3G-OTH-88380

Also listed as: FS55029608 · FS 550 29608 · FS-550-29608

Brand
GEMS SENSORS
Item
FS-550 Insertion-Style Hazardous-Location Liquid Flow Switch
Part Number
FS-550, 29608
Category
Insertion-Style Hazardous-Location Switches for Liquids
Available to Order
Also known as:FS-550, 29608GEMS SENSORS
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Technical Specifications

GEMS SENSORS
Manufacturer Part Number
FS-550, 29608
For Pipe Size
1-1/2 in
Stainless Steel
316
Contact Rating (DC)
20 V
Hazardous Location Rating
Class I, Div 2, Group A, B, C, D

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

Product Description

The GEMS SENSORS Liquid Flow Switch: Paddle is an insertion-style hazardous-location switch for liquids, designed for pipe sizes of 1-1/2 in. This 316 Stainless Steel unit features a 1 in NPT connection and carries a Hazardous Location Rating of Class I, Div 2, Group A, B, C, D. It has a Contact Rating (DC) of 20 V and is identified by manufacturer part number FS-550, 29608.

Frequently Asked Questions

What is the GEMS SENSORS FS-550 liquid flow switch used for?

The GEMS SENSORS FS-550 paddle flow switch detects liquid flow or no-flow conditions in pipes. It is designed for hazardous locations rated Class I, Div 2, Groups A–D, making it suitable for oil and gas, chemical, and industrial processing environments where flammable gases or vapors may be present.

What are the specifications of the GEMS SENSORS FS-550 flow switch?

The FS-550 is a 316 stainless steel insertion-style paddle switch for 1-1/2 in pipe size. It has a 1 in NPT connection, a DC contact rating of 20 V, and a hazardous location rating of Class I, Div 2, Groups A, B, C, D. The manufacturer part number is FS-550, 29608.

Where to buy the GEMS SENSORS FS-550 flow switch worldwide?

3G Electric supplies the GEMS SENSORS FS-550 flow switch worldwide. As a global industrial distributor, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time; we source and deliver this hazardous-location switch to any country.

How to install a GEMS SENSORS paddle flow switch?

Install the FS-550 by inserting the paddle into a 1-1/2 in pipe through a 1 in NPT fitting. Ensure the flow arrow on the body aligns with pipe flow direction. For hazardous locations, follow local electrical codes and verify the switch is wired to a 20 V DC circuit. Test for proper paddle movement before commissioning.

Used in

Common applications for GEMS SENSORS
Cooling water systems — Gems Sensors flow sights with remote output (e.g., 1AMB2) monitor flow to critical equipment and signal alarms.
Lubrication lines — Gems Sensors flow indicators (e.g., 1AMD3) provide visual confirmation of oil flow to bearings and gears.
Process water monitoring — Gems Sensors flow sights (e.g., 1AMB9) verify flow in water treatment and chemical dosing systems.
HVAC systems — Gems Sensors flow switches (e.g., 1AMB5) detect flow in chilled water and condenser loops for pump control.
Food and beverage — Gems Sensors flow sights with stainless steel bodies (e.g., 1AMD4) are used in clean-in-place (CIP) systems for flow verification.
Power generation — Gems Sensors flow sights (e.g., 1AMB6) monitor cooling water and lube oil flow in turbines and generators.
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GEMS SENSORS Products

3G Electric supplies GEMS SENSORS insertion-style hazardous-location switches for liquids. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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