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GEMS SENSORS Flow Sight with Remote Output - Flow Sights with Remote Output
GEMS SENSORSFlow Sights with Remote Output

GEMS SENSORS Flow Sight with Remote Output

The GEMS SENSORS Flow Indicator: Rotor is a flow sight with remote output, featuring a polysulfone sight material and polypropylene wetted material. It has a 1/4 in FNPT connection, Buna-N seal material, and is…

SKU 3G-OTH-90753

Also listed as: RFO155421 · RFO 155421 · RFO-155421

Brand
GEMS SENSORS
Item
Flow Sight with Remote Output
Part Number
RFO, 155421
Category
Flow Sights with Remote Output
Available to Order
Also known as:RFO, 155421GEMS SENSORS
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Local availability & support

Delivery
Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

GEMS SENSORS
Manufacturer Part Number
RFO, 155421
Type
Polypropylene, FNPT, Buna-N
Seal Material
Buna-N
Flow Direction
Horizontal Right
Sight Material
Polysulfone
Connection Size
1/4 in
Wetted Material
Polypropylene

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

Product Description

The GEMS SENSORS Flow Indicator: Rotor is a flow sight with remote output, featuring a polysulfone sight material and polypropylene wetted material. It has a 1/4 in FNPT connection, Buna-N seal material, and is designed for horizontal right flow direction. This product is identified by manufacturer part number RFO, 155421.

Frequently Asked Questions

What is the GEMS SENSORS flow indicator with rotor used for?

This flow indicator with rotor is used to visually verify and remotely monitor liquid flow in industrial piping systems. It is suitable for applications requiring a polysulfone sight window and polypropylene wetted parts, such as water treatment or chemical processing, where horizontal right flow direction is specified.

What are the specifications of the GEMS SENSORS RFO 155421 flow indicator?

The GEMS SENSORS RFO 155421 flow indicator has a 1/4 in FNPT connection, polysulfone sight material, polypropylene wetted material, and Buna-N seal material. It is designed for horizontal right flow direction and includes a rotor for remote output. The manufacturer part number is RFO, 155421.

Where to buy the GEMS SENSORS RFO 155421 flow indicator worldwide?

3G Electric supplies the GEMS SENSORS RFO 155421 flow indicator worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us to source this flow indicator with rotor for your application.

How to install a GEMS SENSORS flow indicator with rotor?

Install the GEMS SENSORS flow indicator in a horizontal pipe section with flow direction matching the horizontal right arrow on the body. Use PTFE tape on the 1/4 in FNPT threads to ensure a leak-free seal. Avoid overtightening to prevent damage to the polysulfone sight material.

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

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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
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

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