Thermal Mass Flow Controller features 5.28 in. length.

Press Release Summary:

Used for gas flow rates up to 300 slpm, GF81 has all-metal seal flow path that allows handling of almost any gas – including corrosive and hazardous gases. Minimized footprint and power draw enables design of smaller, more efficient systems; sensor fosters stable, accurate, and repeatable mass flow measurement; and digital and analog I/O options offer range of communication protocols. MFC suits high-flow applications in thin film, solar, analytical, biotech, and fuel cell applications.

Original Press Release:

GF81 High-Flow MFC

Featuring the Shortest Lay Length on the Market

HATFIELD, Pa. – Brooks Instrument excited to announce the release of our new GF81 MFC that can be used for gas flow rates up to 300 slpm, making it ideal for high-flow applications in:

• Thin Film

• Solar

• Analytical

• Biotech

• Fuel Cell

Here are a few reasons why...

Design Smaller, More Efficient Systems

The compact footprint and low power draw of GF81 allows you to design smaller, more efficient systems. With the shortest lay length on the market, installation is easy making GF81 a simple drop-in replacement for many existing systems.

In addition, the GF81 valve requires the same amount of power as our low-flow GF MFCs, so tool integration will be a breeze.

One Product Series for All Your Process Gases

Since it's part of our GF40 (elastomer seal) and GF80 (metal seal) Series, the GF81 uses the same high-stability sensor as its low-flow siblings, guaranteeing stable, accurate, and repeatable mass flow measurement.

The all-metal seal flow path allows GF81 to handle almost any gas - including many corrosive and hazardous gases.

An Ideal Upgrade

A wide range of digital and analog I/O options offers the broadest range of communication protocols, making the GF81 an ideal upgrade for existing high-flow MFCs or MFMs. Now, you can upgrade to a device that offers better actual process gas accuracy and repeatability over devices that use traditional single-point conversion factors, while keeping the same advanced digital communication protocols.


Want to learn more?

These benefits are only part of the story. There's more to share about how and why this robust family of devices can be used for a variety of applications.


We'd enjoy the opportunity to talk with you so please visit our website, give us a call 1-888-554-3569 or reply to this email

About Brooks Instrument

Brooks Instrument, LLC, based in Pennsylvania, is a multi-technology instrumentation company serving a range of demanding markets. The Company has a proven history of innovation, including the original commercial design that set the standard for today’s thermal mass flow controllers, the first high-performance digital mass flow controller, the first gas and range programmable thermal mass flow controller (MultiFlo™), the first watertight and explosion-proof thermal mass flow controller (Mf Series), the first thermal mass flow controller with Foundation Fieldbus (SLA Series) and the first variable area meter with Foundation Fieldbus (MT3809 & MT3750). Today, Brooks Instrument’s portfolio includes glass and metal tube variable area meters (rotameters), thermal mass flow controllers and meters from ultra-high purity to industrial grade, Coriolis mass flow controller (Quantim), vacuum measurement and pressure control products, direct liquid injection vapor delivery systems, magnetic level instruments, and a variety of flow accessories. The Company also owns Key Instruments, which offers precision machined acrylic flow meters, molded plastic flow meters, glass tube flow meters, and flow control valves. Brooks Instrument has manufacturing locations, sales, and service offices in the Americas, Europe, and Asia. For more information on flow solutions, products, or sales contacts please visit Also visit us on Twitter (, LinkedIn ( and Facebook (

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