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GEMS SENSORS FS-500 General Purpose Piston Flow Switch - General Purpose Piston Flow Switches
GEMS SENSORSGeneral Purpose Piston Flow Switches

GEMS SENSORS FS-500 General Purpose Piston Flow Switch

The GEMS SENSORS Liquid Flow Switch is a general purpose piston flow switch with a fixed set point and normally open switch position. It features a polypropylene body with 3/4 in FNPT connections and a contact rating…

SKU 3G-OTH-89247

Also listed as: FS500175117 · FS 500 175117 · FS-500-175117

Brand
GEMS SENSORS
Item
FS-500 General Purpose Piston Flow Switch
Part Number
FS-500, 175117
Category
General Purpose Piston Flow Switches
Available to Order
Also known as:FS-500, 175117GEMS SENSORS
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Payment
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Technical Specifications

GEMS SENSORS
Manufacturer Part Number
FS-500, 175117
Type
Polypropylene, FNPT
FNPT
3/4 in
Set Point Type
Fixed
Connection Size
3/4 in
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 is a general purpose piston flow switch with a fixed set point and normally open switch position. It features a polypropylene body with 3/4 in FNPT connections and a contact rating of 20 V DC. This model is identified by manufacturer part numbers FS-500 and 175117.

Frequently Asked Questions

What is the GEMS SENSORS FS-500 liquid flow switch used for?

The GEMS SENSORS FS-500 is a general purpose piston flow switch used to detect liquid flow or no-flow conditions in industrial piping systems. It is commonly applied in water treatment, HVAC, and process control to protect pumps and equipment from dry running or low flow.

What are the specifications of the GEMS SENSORS FS-500 flow switch?

The GEMS SENSORS FS-500 is a fixed set point, normally open piston flow switch with a polypropylene body and 3/4 in FNPT connections. Its DC contact rating is 20 V. The manufacturer part numbers are FS-500 and 175117. It is designed for general purpose liquid flow monitoring.

Where to buy the GEMS SENSORS FS-500 flow switch worldwide?

3G Electric supplies the GEMS SENSORS FS-500 flow switch worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time; we source and deliver this model globally.

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 3/4 in FNPT threads to prevent leaks. Wire the normally open contacts to your control circuit. Always verify the set point and test operation 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 general purpose 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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