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GF Signet

Innovating Water & Chemical Sensors since 1960s.

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Since the 1960s, GF Piping Systems' Measurement and Control, originally known as Signet, has been designing, developing, and manufacturing products in-house. Based in Irwindale, CA, our comprehensive product portfolio includes a variety of sensors and instruments for water and chemical applications. We specialize in pH/ORP, conductivity/resistivity, flow, dissolved oxygen (DO), chlorine, and transmitters. Most sensors with associated fittings are available in plastic and are compatible with GF Piping Systems valves, pipes, and fittings. Our Measurement and Control products are used in a variety of water and wastewater treatment applications, supporting global companies with high-performance components.

60 Years of Reliability

For six decades, GF Piping Systems has been developing and manufacturing sensors in our own factory in Irwindale, California. Our extensive experience can help your systems run continuously and efficiently.

Innovative Solutions

We produce versatile products with unique designs and long service lives, suitable for everything from general usage to harsh media applications. Our products are available in various materials and can be customized to meet your specific needs.

Flexible Use

Our extensive portfolio includes sensors and instruments to cover a wide range of process controls. All our products are compatible with GF Piping Systems valves, pipes, and accessories, providing a one-stop solution to help you build and maintain your systems.

Global Presence with Local Support

As a global company, we’re committed to supporting you, no matter where you or your customers are. Our regional centers provide repair and support services, while our team of experts specializes in tailoring customized solutions for your unique application.

Our Portfolio

Chlorine Analyzer Systems

The GF Chlorine Analyzer System is an integrated, all-in-one system designed to measure free chlorine or chlorine dioxide.

Conductivity / Resistivity

GF Conductivity/Resistivity electrodes are designed to provide versatile installation and accurate sensing across a broad, dynamic range.

Dissolved Oxygen (DO)

Features the latest optical technology for dissolved oxygen measurement and eliminates the replacement of membrane and reference solutions

Insertion Paddlewheel Sensors

Paddlewheel flow sensors are highly repeatable, rugged sensors that offer exceptional value with little or no maintenance.

Magmeters

GF Magmeters are versatile, easy-to-install sensors with no moving parts and patented Magmeter technology.

In-line Rotor Flow Sensors

In-line Rotor Flow Sensors offer the ability to measure opaque and transparent liquids with simple installation.

Variable Area Flow Meters

Variable area flow meters are used to measure flows in industrial piping applications. They offer a wide range of measurement options for a variety of situations.

Conductive level switches

GF Piping Systems offers a carefully selected range of point level switches. Different application conditions require dedicated working principles, specific process connections and wetted materials of excellent quality. GF Piping Systems point level switches ensure safety in your industrial tank applications.

Float Switches

GF offers a carefully selected range of point level switches. Different application conditions require dedicated working principles, specific process connections and wetted materials of excellent quality. GF point level switches ensure safety in your industrial tank applications.

Hydrostatic Level Sensor

GF provides high-end hydrostatic level sensors for continuous level measurement. Unaffected by foam layers, agitation or chemical fumes, they provide superior chemical compatibility.

Radar continuous level measurement

In harsh applications the Radar Level Transmitters from GF Piping Systems are the best choice in terms of performance, reliability and durability.

Ultrasonic Continuous Level Measurement

The GF 2260 and 2270 are rugged and high-performance ultrasonic level transmitters for non-contacting continuous level measurement. They are easy to install and reliable within ranges up to 15 meters.

Vibrating Level Forks

GF offers a carefully selected range of point level switches. Different application conditions require dedicated working principles, specific process connections and wetted materials of excellent quality. GF point level switches ensure safety in your industrial tank applications.

pH/ORP

As general-purpose and high-performance sensors, GF pH/ORP electrodes are ideal for a wide range of applications.

U1000 V2 ultrasonic flow meter

With the versatile U1000 V2 flow meter from GF Piping Systems you can accurately measure flow contactless without affecting the production process or the end-product quality.

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