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.
Sierra offers a complete line of gas mass flow meters and gas flow controllers for most gases, including corrosives and ultra-high purity gases. All of our mass flow meters and flow controllers offer direct mass flow measurement, meaning they do not require pressure or temperature compensation. In addition, Sierra is one of the few companies who can offer solutions for very small flows 94 sccm up to flows in 72-inch pipes.
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.
Low flow measurement and control is a difficult application. Ultra low flow mass flow controllers can accurately control flows from 0.1 to 0.4 sccm which is ideal for measuring and controlling doping gases for pilot plants and other research houses.
From bulk gas delivery to cleaning to purging operations, Sierra`s mass flow meters and controllers offer the simplicity and robustness demanded in these applications. Our ability to handle corrosive gases, high flow rates and multiple gases with the same unit makes Sierra`s mass flow meters and controllers a tool-makers choice.
Assure accurate and repeatable gas, liquid and steam measurement at your facility. Our volumetric vortex flow meters, multivariable mass vortex flow meters, ultrasonic flow meters and thermal mass flow meters are used for precision measurement of reactants, off-gases, and numerous other fluid flows in the refining industry.
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.
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.
Sierra specializes in accurate mass flow measurement and/or control of Nitorgen gas. One of the most commonly measured gases, applications are found across numerous industries ranging from general process control to scientific research and development.
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.
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.
Maintaining the health of your water treatment facility requires instrumentation you can rely on. Sierra offers turnkey solutions for a variety of gas, liquid, and steam applications. From tracking and allocating natural gas, to measuring compressed air, to aeration basins and digester gas measurements, our thermal mass flow meters are ideal: high turndown, direct mass flow and the highest accuracy in the market—+/- 0.75% of reading.
From facilities management to district heating applications, accurate steam flow measurement provides you with substantial savings on energy and maintenance costs. A multivariable mass vortex meter measures five process variables—mass flow rate, temperature, pressure, volumetric flow rate and fluid density—with one process connection.
The consumption of scrubbing material in a scrubber is related to the mass flow of acid gases. Hydrogen chloride (HCl) and sulphur dioxide (SO2) are the major acid gases in an incinerator. By measuring the mass flow of SO2 and HCl in the raw gas going into the scrubber, it is possible to calculate the required quantity of scrubbing material.
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.