Sierra is an expert in the control of high flows of gases. With our large and powerful control valves and PID valve control, Sierra`s mass flow controllers, with industry-best low pressure drop, can control much higher flows than equivalent flow controllers with minimal pressure drop requirements.
Compressed air isn`t free, so more and more companies carefully monitor and control its usage. We manufacture a range of thermal mass flow meters and vortex flow meters that are ideal for accurate compressed air monitoring. Search for your compressed air application below for the best flow measurement solution.
Our flow instrumentation has been on numerous space shuttles and is currently on the International Space Station. Our high pressure mass flow controllers are used extensively in the development of advanced composites for aerospace.
For over 40 years, Sierra has designed and manufactured a wide range of today’s most advanced digital gas flowmeters and controllers for reasearchers and systems integrators, including a high-flow, high-pressure gas flowmeter with a complete suite of digital protocols for network integration.
Assure accurate and repeatable gas, liquid and steam measurement throughout the oil patch, from monitoring injection at the wellhead and measuring natural gas for heaters and boilers to measuring the various process gases at the refinery or flared in the field. Our volumetric vortex flow meters, multivariable mass vortex flow meters, ultrasonic flow meters and thermal mass flow meters are used for precision measurement in the oil and gas industry.
With its high turndown and direct mass flow, our immersible thermal meters are the instrument of choice for measuring aeration basin air flow and monitoring digester gas. Our multivariable vortex meters are used to measure steam in the cogeneration processes, while our ultrasonic flowmetersare used for influent and effluent measurement.
Our thermal flow meters are widely used in flotation cells in mining. Our multivariable mass vortex flow meters are used in the oil and gas industry both at the wellhead and in the refinery. Thermal mass flow meters also have a place in the power generation industry where they are used to measure and control fuel-to-fuel air ratios.
Sierra designs and manufactures a wide range of today’s most advanced analog and digital gas flowmeters and controllers, including a high-pressure gas flowmeter. For gas mixing and blending applications, accuracy and precision control and measurement are always a central requirement. Sierra’s precise flow meters and controls provide end-users with high performance in gas mixing and blending applications like creating artificial atmospheres, gas mixing in manufacturing, inerting and gas chromatography.
Most chemical reactions are based on direct mass flow readings, and thus, Sierra`s immersible thermal mass flow meters and our volumetric vortex and multivariable mass vortex flow meters see extensive used in oil, gas and steam measurement. In addition, process liquid flows can be addressed with our non-intrusive clamp-on ultrasonic flow meters. Finally, our capillary thermal mass flow meters and controllers are perfect for semiconductor processing applications.
Thermal mass flowmeters and controllers are ideal for Argon application where precision is key. Sierra specializes in accurate mass flow measurement and/or control of Argon gas. Popular applications range from general industrial process control, inerting and steel purification processes to name a few.
Precise measurement of natural gas requires high accuracy, low pressure drop and direct mass flow reading—all the hallmarks of Sierra’s immersible thermal, mass vortex and thermal mass flow controllers. Our mass flow controllers are ideal for natural gas flow measurement with 100:1 turndown and no moving parts, providing a robust MFC solution. Our natural gas flow measurement instruments can also handle liquefied natural gas (LNG) via our cryogenic mass vortex meters.
The measurement of gas flow in large ducts or pipes offers its own set of challenges. Large ducts and pipes often have swirls or turbulence in them which makes measurement of true gas flow difficult. Sierra has developed a number of solutions to this vexing problem, including stand-alone flow conditioning elements and multiple arrays of thermal sensors. By including hot taps and purging systems, such arrays can be very flexible.
Precision high pressure mass flow control is very difficult. Sierra has met this challenge with a patented high pressure mass flow controller design that offers impermeable elastomers with very little leakby.
Our mass flow controllers in particular see extensive use in bioreactors, pill coating and the creation of artificial atmospheres for research. Our flow meters are used to leak test critical medical devices like stents, while our larger industrial devices are used to heat or steam-clean bioreactors and in facilities management in hospitals.