EXW Singapore — collect or forward from our Singapore office.

3G Electric
GEMS SENSORS RFS 156268 Liquid Flow Switch with Remote Output - Flow Sights with Remote Output
GEMS SENSORSFlow Sights with Remote Output

GEMS SENSORS RFS 156268 Liquid Flow Switch with Remote Output

The GEMS SENSORS Liquid Flow Switch: Brass (MPN RFS, 156268) is a flow sight with remote output featuring a 1/2 in FNPT connection. It is UL Listed with an SPDT switch type, normally closed position, and Viton wetted…

SKU 3G-OTH-90807

Also listed as: RFS156268 · RFS 156268 · RFS-156268

Brand
GEMS SENSORS
Item
RFS 156268 Liquid Flow Switch with Remote Output
Part Number
RFS, 156268
Category
Flow Sights with Remote Output
Available to Order
Also known as:RFS, 156268GEMS SENSORS
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
EXW Singapore
Collect or forward from our office
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Local availability & support

Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

GEMS SENSORS
Manufacturer Part Number
RFS, 156268
Type
FNPT, -20°F – 212°F
Standards
UL Listed
Switch Type
SPDT
Connection Size
1/2 in
Switch Position
Normally Closed
Wetted Material
Viton

Technical Documents

No technical documents available for this product.
Request documentation →
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

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

Product Description

The GEMS SENSORS Liquid Flow Switch: Brass (MPN RFS, 156268) is a flow sight with remote output featuring a 1/2 in FNPT connection. It is UL Listed with an SPDT switch type, normally closed position, and Viton wetted material, operating in a temperature range of -20°F to 212°F.

Frequently Asked Questions

What is the GEMS SENSORS RFS 156268 liquid flow switch used for?

The GEMS SENSORS RFS 156268 liquid flow switch is used to detect flow or no-flow conditions in industrial piping systems. It provides a remote electrical output via its SPDT switch, making it suitable for process control, pump protection, and alarm systems in water, chemical, and HVAC applications.

What are the specifications of the GEMS SENSORS RFS 156268 flow switch?

The GEMS SENSORS RFS 156268 is a brass liquid flow switch with a 1/2 in FNPT connection. It features an SPDT switch type, normally closed position, and Viton wetted material. It is UL Listed and operates in a temperature range of -20°F to 212°F.

Where to buy the GEMS SENSORS RFS 156268 flow switch worldwide?

You can source the GEMS SENSORS RFS 156268 flow switch worldwide through 3G Electric. As a global industrial equipment distributor, 3G Electric handles full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time.

How to install the GEMS SENSORS RFS 156268 flow switch?

Install the GEMS SENSORS RFS 156268 flow switch by mounting it in a horizontal pipe section with the flow arrow aligned to flow direction. Use PTFE tape on the 1/2 in FNPT threads. Wire the SPDT normally closed switch per your control circuit. Ensure the Viton seals are compatible with your fluid.

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.
Not sure this is the right part? Photo-identify it→

GEMS SENSORS Products

3G Electric supplies GEMS SENSORS flow sights with remote output. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion →Pumps & Compressors →Spare Parts →All Products →

More from GEMS SENSORS

View all GEMS SENSORS parts →
This flow sight with remote output from GEMS SENSORS is designed for detecting flow or no-flow conditions in industrial piping systems. It features a polypropylene body, 1/4 in FNPT connection, SPDT switch type, and normally closed switch position. The wetted material is Buna-N, and the unit is UL Listed. Typical applications include process control, pump protection, and monitoring in water treatment, chemical processing, and HVAC systems
GEMS SENSORS
This flow sight with remote output from GEMS SENSORS is designed for detecting flow or no-flow conditions in industrial piping systems. It features a polypropylene body, 1/4 in FNPT connection, SPDT switch type, and normally closed switch position. The wetted material is Buna-N, and the unit is UL Listed. Typical applications include process control, pump protection, and monitoring in water treatment, chemical processing, and HVAC systems
This flow sight with remote output allows visual verification and remote monitoring of liquid flow in industrial piping systems. It features a polysulfone sight window, polypropylene wetted parts, and a Buna-N seal. The 1/4 in FNPT connection is designed for horizontal right flow direction. Typical applications include water treatment and chemical processing where flow indication and remote output are required
GEMS SENSORS
This flow sight with remote output allows visual verification and remote monitoring of liquid flow in industrial piping systems. It features a polysulfone sight window, polypropylene wetted parts, and a Buna-N seal. The 1/4 in FNPT connection is designed for horizontal right flow direction. Typical applications include water treatment and chemical processing where flow indication and remote output are required
Flow sight with remote output for detecting liquid flow in piping systems. Features a 1 in FNPT connection, SPDT switch (normally open), ceramic wetted material, and CE certification. Operating temperature range -20°F to 212°F. Suitable for industrial applications such as HVAC, water treatment, and process control to monitor flow conditions
GEMS SENSORS
Flow sight with remote output for detecting liquid flow in piping systems. Features a 1 in FNPT connection, SPDT switch (normally open), ceramic wetted material, and CE certification. Operating temperature range -20°F to 212°F. Suitable for industrial applications such as HVAC, water treatment, and process control to monitor flow conditions

Customer reviews

No reviews yet — be the first

Questions & answers

No questions yet — ask us the first