New MT3809 Variable Area Flow Meter from Brooks Instrument Delivers Supreme Performance in Extreme Conditions

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The MT3809 armored variable area flow meter is designed to perform effectively in extreme conditions in chemicals, petrochemicals, oil and gas, and LP gas applications.

Brooks Instrument, a world-leading provider of advanced flow, pressure, vacuum, level and vapor delivery solutions, has launched the MT3809 armored variable area (VA) flow meter, an instrument designed to perform effectively in extreme conditions in chemicals, petrochemicals, oil and gas, and LP gas applications.

The MT3809 provides unprecedented flexibility to use a single flow meter regardless of application, process configuration or flow rate. It works accurately across a vast range of operating temperatures — from -196ºC to 420ºC (-320ºF to 780ºF) — and at pressures to 1380 bar (20K psi). Even in demanding applications measuring gases, liquids and steam, the MT3809 delivers 2% full-scale/1.6 VDI accuracy. The explosion-proof housing meets the most stringent hazardous-area classifications worldwide, and a flameproof option is available for IIC/Class 1 Division 1 locations. For further peace of mind, Brooks guarantees that the MT3809 can be built with specified country-of-origin materials.

In addition to offering flexibility, the new MT3809 can help simplify design and maintenance, reducing downtime and saving money. Installation is fast and easy, construction is of rugged stainless steel, and weldneck flanges provide long-term durability in all configurations. No back pressure is needed for gas applications, and ASME sealing specifications are met with a standard gasket, eliminating the cost of custom gaskets.

For more information about the new MT3809, visit

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, first high-performance digital mass flow controller, 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, follow us on Twitter (@BrooksInstrmnt), LinkedIn ( and Facebook (


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Brian Courtney
Schubert Communications
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