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We understand flow is tough.  We can solve this together.

A global leader in flow measurement and control for over 45 years, Sierra Instruments designs and manufactures fluid flow measurement and control solutions for customers spanning across global industries as diverse as scientific research, oil & gas, energy management, semiconductor, clean energy, aerospace and biotech to name a few.  

Sierra provides state-of-the-art calibration and fast localized service.

With over 150 locations in over 50 countries, Sierra is uniquely positioned to provide innovative products and lifetime support for the leading companies of today and the growth enterprises of tomorrow.

Sierra Instruments is a member of the TASI Group.

What's Your Flow?



What we can do



Buy Manufacturer Direct.  Get Major Benefits.

Shop Sierra instruments' online store for the entire Sierra product line!  We offer the largest factory direct selection on the web, with next day shipping and lifetime support.

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Technical Articles

Complete Guide to Gas Mixing and Blending (Gas Handling Equipment) Gas mixing sounds simple enough. You simply mix a number of pure gasses to create a new mixture. Unfortunately, it's not usually as simple as it sounds. There are many variables and factors that play... (View Full Article)
Take Control of Your Facility Flows - A Sierra Flow Energy Field Guide (Calibration Instruments, Standards and Reference Sources) To achieve your goals, you want to make your facility as efficient and productive as possible and know you are in control of costs. Accurate flow measurement is one great way to make this happen. But... (View Full Article)