EXW Singapore — collect or forward from our Singapore office.

3G Electric
GEMS SENSORS FS-150 Low Pressure Drop Piston Flow Switch - Low Pressure Drop Piston Flow Switches
GEMS SENSORSLow Pressure Drop Piston Flow Switches

GEMS SENSORS FS-150 Low Pressure Drop Piston Flow Switch

The GEMS SENSORS Liquid Flow Switch: Piston is a low pressure drop piston flow switch with a fixed set point and normally closed switch position. It features a 1/2 in NPT connection size, polypropylene construction…

SKU 3G-OTH-90014

Also listed as: FS150NC05GPM · FS 150 NC 0 5GPM · FS-150-NC-0-5GPM

Brand
GEMS SENSORS
Item
FS-150 Low Pressure Drop Piston Flow Switch
Part Number
FS-150, NC, 0.5GPM
Category
Low Pressure Drop Piston Flow Switches
Available to Order
Also known as:FS-150, NC, 0.5GPMGEMS 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
FS-150, NC, 0.5GPM
Type
Polypropylene, NPT
NPT
1/2 in
Set Point Type
Fixed
Connection Size
1/2 in
Switch Position
Normally Closed
Contact Rating (DC)
20 V

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: Piston is a low pressure drop piston flow switch with a fixed set point and normally closed switch position. It features a 1/2 in NPT connection size, polypropylene construction, and a contact rating of 20 V DC. This model, MPN FS-150, NC, 0.5GPM, is designed for reliable flow detection in industrial systems.

Frequently Asked Questions

What is the GEMS SENSORS FS-150 liquid flow switch used for?

The GEMS SENSORS FS-150 liquid flow switch detects flow or no-flow conditions in industrial piping systems. It is commonly used for pump protection, cooling water monitoring, and process control where reliable flow detection is required.

What are the specifications of the GEMS SENSORS FS-150 flow switch?

The GEMS SENSORS FS-150 is a low pressure drop piston flow switch with a fixed set point and normally closed switch position. It has a 1/2 in NPT connection, polypropylene construction, and a contact rating of 20 V DC. The set point is 0.5 GPM.

Where to buy the GEMS SENSORS FS-150 flow switch worldwide?

3G Electric supplies the GEMS SENSORS FS-150 flow switch to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for a quote and lead time on this model.

How to install a GEMS SENSORS FS-150 piston flow switch?

Install the GEMS SENSORS FS-150 in a vertical or horizontal pipe run with flow in the direction of the arrow on the body. Use PTFE tape on the 1/2 in NPT threads. Ensure the switch is wired to a 20 V DC circuit and test the set point after installation.

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 low pressure drop piston flow switches. 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 →

Customer reviews

No reviews yet — be the first

Questions & answers

No questions yet — ask us the first