Founded in 1973 by Dr. John G. Olin, venture within Sierra and experience our passion for innovation and precision measurement and control. It was Dr. Olin’s dream that Sierra be built on innovation, creative opportunity, entrepreneurial spirit, and team camaraderie. We are proud to continue those traditions today. Discover our culture – a family-owned, open atmosphere for interaction that emphasizes individuality, respect, growth, and strong customer relationships.Our Flow Measurement and Control Division designs and manufactures manufacturer of Thermal Mass Flow Meters and Controllers for gas flow applications. We also design and manufacture Immersible Thermal Mass, Transit-Time Ultrasonic, Vortex Shedding and Multivariable flow instruments in both standard and customized versions for applications in industrial and hazardous environments.

About Us

Experience Sierra!
Founded in 1971 by Dr. John G. Olin, venture within Sierra and experience our passion for innovation and precision measurement and control. It was Dr. Olin’s dream that Sierra be built on innovation, creative opportunity, entrepreneurial spirit, and team camaraderie. We are proud to continue those traditions today. Discover our culture – a family-owned, open atmosphere for interaction that emphasizes individuality, respect, growth, and strong customer relationships.

Our Divisions:
Flow Measurement & Control Division
With more than 150 locations in over 50 countries, our Flow Measurement and Control Division is known for the design and manufacture of innovative high-performance fluid flow measurement and control instrumentation for nearly any gas, liquid and steam application spanning across global industries as diverse as scientific research, semiconductor, wastewater treatment, iron and steel, clean energy, aerospace and biotech to name a few.

Our Flow Measurement and Control Division designs and manufactures high precision capillary-sensor based Mass Flow Meters and Controllers for gas flow applications. We also design and manufacture Immersible Thermal Mass, Transit-Time Ultrasonic, Vortex Shedding and Multivariable flow instruments in both standard and customized versions for applications in industrial and hazardous environments.

Our technologies precisely measure and/or control very low flows of gas down to less than 1 sccm full scale as well as extremely high flows of gas, liquid, and steam. With rugged product design, cutting-edge innovation, and a worldwide team of flow experts, we know you will “Experience Our Passion for Flow.”

Automotive Test Systems Division
Driven by our long-established roots in engine emissions sampling systems, our acquisition of CP Engineering in late 2011 has significantly grown our Automotive Test Systems Division. We now cover the complete range of automotive test applications including engine, vehicle, powertrain, transmission, emissions, analytical and component testing.

Since the formation of our Emissions Division in the early 1990’s, we have been deeply involved in the engine and vehicle development and testing industry. Our innovative BG3 Partial Flow Dilution (PDF) engine particulate emissions sampling technology is the leading technology of its kind in the world and is viewed as the standard in the industry.

Our new Automotive Test Systems Division is now appropriately named, Sierra-CP Engineering. Sierra-CP is now the only US-owned complete turn-key automotive test systems company in the industry and has manufacturing and support facilities spread across the globe.

Mission, Vision

Our Vision: Experience Our Passion for Flow!

Our Mission: To be the leading manufacturer in the world of fluid flow and environmental flow measurement and control instrumentation in terms of: QD PICS (Quality, Delivery, Price, Innovation and Customer Support.)

Founded in 1971 by Dr. John G. Olin, Sierra has long been well known as a manufacturer of  high-performance fluid flow measurement and control instrumentation for use in numerous industries and applications throughout the world.  Adding to Sierra's expertise in fluid flow and systems integtration, Sierra founded its fast growing Environmental Flow group in 1991 which specializes in engine particulate emissions measurement and is known worldwide for its flagship partial flow sampling system called  BG-3 technology.  Sierra's two flow divisions, Fluid Flow and Environmental Flow, continue their leadership with a steady stream of innovative products that help customers meet tough flow challenges every day.

By combining superior product quality with a talented global support network of experts in over 150 locations in over 50 countries, Sierra works hard to consistently deliver quality flow measurement solutions and support to customers for the life of the product.

Our Thermal Mass, Transit-Time Ultrasonic, Vortex Shedding and Multivariable flow instruments are available in both standard and customized versions for applications in laboratory, industrial and hazardous environments. Sierra’s flow measurement technologies precisely measure or control very low flows of gas down to less than 1 sccm full scale as well as extremely high flows of gas, liquid, and steam. With rugged product design, cutting-edge innovation, and a worldwide team of flow experts: we hope you Experience Our Passion for Flow!

FEATURED PRODUCTS

Max-Trak - Model 180 + 316 - Stainless Steel Flanges

The MaxTrak with 316 Stainless Steel Flanges is specifically designed for dirty environments commonly found in heavy industrial applications like metals and ceramics manufacturing, combustion control systems, chemical processing and pharmaceutical manufacturing where the instrument outperforms the competition by meeting the rigorous requirements of NEMA 6 and IP67.   To measure or control gas flows from 100 to 1000 slpm, choose either ANSI ...

Flat-Trak - Model 780S - Inline Mass Flow Meter with Flow Condition

The Flat-Trak Model 780S offers improved measurement capabilities in installations where long straight pipe runs are not available. The meter incorporates Sierra’s unique dual-plate flow conditioning element to eliminate velocity profile distortions as well as swirl and temperature stratification in the gas stream. This product reduces piping straight run requirements to as little as three upstream diameters.  As a result, you save money on ...

FEATURED SOFTWARE

CADET - V14 - Test Automation System

Covering a wide range of industrial applications, CADET serves engine, powertrain, transmission, emissions, analytical, vehicle and component testing (Read Case Studies). Our first PC-based automation system was installed in 1982. Today the latest version of our powerful CADET Automation technology is still at the heart of our system solutions. Our successful 25+ year track record of continual development of the CADET software and the CP128 Control ...

Transient Test Scheduler

Our Transient Test Scheduler extends our flagship CADET V14Test Automation Software by adding a productivity tool speeding up the process of writing and running transient test cycles. Writing a transient test cycle where setpoints are varying almost continuously results in a test that has many (possibly several thousand) stages. Our Transient Test Scheduler ...

FEATURED DOWNLOADS

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EVENTS ATTENDED

Pittcon 2012, Pittcon 2013

Company details

Business Type:
Technology - Manufacturer

Industry Type:
Monitoring and Testing

Market Focus:
Globally (various continents)

Year Founded:
1971

Employees:
11-100

Turnover:
$10,000,000 US - $100,000,000 US

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