Cryogenic Flow Meters

Cryogenic flow meters are used to measure the flow of gasses at extremely low temperatures (at or below −150 °C; 123 K; −238 °F). Accurate flow measurement of these gasses can optimize processes, reduce waste, and enhance overall efficiency. It can also ensure the proper functioning of equipment, maintain product quality, and prevent safety hazards.

Low Temperature, Cryogenic Flow Meter Solutions:

Primary Flow Signal offers adaptable and innovative designs all supported by the industry’s largest team of specialized flow meter engineers. Our measurement devices are offered in a wide-range of sizes and materials that can handle gasses, chemicals, and tar sands, providing a long service life even in corrosive and harsh, low-temperature environments.

The growth in the use of liquefied gasses has grown significantly over the past decade, requiring innovative solutions for monitoring and metering low-temperature materials. Because there are no moving parts with a venturi meter, extremely long life expectancy is another advantage of using a differential type primary element where high accuracy and long-term reliability are required.

Low Temperature Flow Meter Applications

Accurate flow measurement is crucial in industries that rely on precise handling and transportation of low-temperature gasses. It is an essential process used in chemical, pharmaceutical, medical, electronics, and energy sectors. Examples of applications include:

  • Liquified natural gas (LNG) production: LNG flow meters monitor flow during production, storage, and transportation.
  • Industrial gas distribution: monitor and measure gasses being transported and delivered.
  • Food processing: monitor the flow of cryogenic fluids used in freezing and cooling processes.
  • Aerospace: monitor the flow of cryogenic fluids to ensure efficient fuel consumption in rocket engines.
  • Microchip manufacturing: relies on a variety of cryogenic gasses that need to be accurately measured which is an ideal application for either an insert venturi meter or a full body design.
  • Additional flow measurement of gasses. Frequent examples include nitrogen (N2), carbon dioxide (CO2), helium (He), liquid nitrogen (LN2), hydrogen (H), and liquid oxygen

Cryogenic Flow Meter Types

Not all flow meters can be used in the cryogenic industry, due to the low temperatures in which they must function. Differential pressure flow meters are commonly used for cryogenic flow measurement. DP flow meters consist of flow sensors and differential pressure transmitters. They calculate fluid flow by reading the change in fluid pressure as it flows through a pipe with a constricted section. Two types of DP flow meters are:

Venturi Flow Meters:

Built for flow measurement of pressurized line fluids, including liquids, gasses, and steam.

Orifice Flow Elements:

Differential elements commonly used for measuring clean liquids, gasses, and steam flow.

With 30 years of experience and over one million units successfully in use today, we provide the world’s most reliable differential pressure flow meters for demanding industries and applications.

Venturi Meter

Highlighted Project

Primary Flow Signal reconfigured existing 72” venturi meters for a large municipality. Read our case study to learn about this project.

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Cryogenic & Low Temperature Flow Meter Services & Support

We understand that each cryogenic application is unique. With years of experience, our team understands the different challenges and requirements you face. We offer solutions tailored to your specific needs. Our flow meters are specifically designed to provide accurate and reliable flow data in challenging conditions, including cryogenic environments. Our products are of the highest quality available in the cryogenic industry and the world. Our customer service, ranging from onsite visits, training, and complete engineering support, is unparalleled in the industry.

Extend the lifetime of your meters and trust the accuracy of your data with these aftermarket services: 

Contact us to find the right low-temperature flow meter solution for your application