Cryogenic Flow Meters


Reliable Low Temperature, Cryogenic Flow Meter Solutions

Cryogenic systems require flow meters that can perform reliably under extremely low temperatures, typically at or below −150 °C (123 K / −238 °F), while maintaining accuracy, repeatability, and long-term durability. From liquefied natural gas (LNG) and liquid nitrogen to oxygen, argon, hydrogen, and helium, accurate flow measurement helps optimize processes, reduce waste, improve efficiency, maintain product quality, and support safe operation across industrial applications.

PFS provides differential pressure flow meter solutions engineered for cryogenic service. Backed by one of the industry’s largest teams of specialized flow meter engineers, our flow meters are designed to withstand demanding operating conditions while delivering dependable measurement performance with minimal pressure loss and long service life.

Common Low Temperature Flow Meter Applications

Cryogenic flow measurement is crucial in the safe handling, storage, and transfer of liquefied gases across a wide range of industrial, energy, medical, and research applications where accuracy and reliability are critical. Examples of applications include:

  • Liquified Natural Gas (LNG) Production
    • Measure flow from LNG flow meters during production, storage, transportation and regasification.
  • Industrial Gas Production & Distribution
    • Monitor the production and transfer of nitrogen, oxygen, argon, helium, hydrogen, and other cryogenic gases.
  • Food & Beverage Processing
    • Monitor the flow of cryogenic fluids used in freezing, chilling, and temperature-controlled food processing.
  • Aerospace & Rocket Propulsion
    • Support accurate measurement of cryogenic propellants used in aerospace testing and launch systems.
  • Semiconductor & Electronics Manufacturing
    • Measure ultra-pure cryogenic gases used in semiconductor fabrication and precision manufacturing.
  • Research, Medical & Specialty Gas Systems
    • Provide reliable measurement for labs, healthcare facilities, and specialty gas applications. Frequent examples include nitrogen (N2), carbon dioxide (CO2), helium (He), liquid nitrogen (LN2), hydrogen (H), and liquid oxygen.

Cryogenic Flow Meter Types

Cryogenic applications require flow meters capable of maintaining accuracy and reliability under extremely low temperatures. Differential pressure flow meters are a proven solution for measuring liquefied gases and other cryogenic fluids, offering dependable performance across a wide range of industrial processes.

Fabricated Venturi Flow Meter

Venturi Flow Meters

Accurate measurement with low pressure loss.
Built for measuring pressurized liquids, gases, and steam. With no moving parts, Venturi flow meters deliver exceptional long-term reliability, low maintenance, and energy-efficient performance for demanding cryogenic applications.

Orifice Flow Meters

Flexible, cost-effective measurement for cryogenic fluids.
Provides a practical differential pressure solution for clean cryogenic liquids and gases across a variety of industrial applications.

Specialty Flow Meter

Specialty & Custom Flow Meters

Engineered solutions for specialized cryogenic systems.
Custom-designed flow meters and materials for unique process requirements, installation constraints, and extreme operating conditions.

Solving Cryogenic Flow Measurement Challenges Since 1983

Cryogenic applications demand flow measurement solutions that remain accurate and reliable despite extreme temperatures, changing operating conditions, and specialized material requirements.

PFS helps industrial facilities, gas producers, EPC firms, and research organizations specify engineered flow measurement solutions for liquefied gases and other cryogenic processes.

Flow Meters Engineered for Extreme Low Temperatures

Cryogenic fluids place unique demands on flow measurement equipment. PFS designs flow meters in a wide range of sizes and material options using engineering practices suited for extremely low-temperature service and long-term reliability.


Accurate Measurement with Low Permanent Pressure Loss

Cryogenic processes often require precise measurement while minimizing energy loss. PFS Venturi flow meters provide highly accurate measurement with low permanent pressure loss to support efficient system operation.


Solutions for Liquefied Gases & Specialty Fluids

From LNG and liquid nitrogen to oxygen, argon, hydrogen, and helium, PFS offers differential pressure flow technologies designed for a wide range of cryogenic applications and operating conditions.


Engineering Support from Specification Through Service

PFS provides application review, hydraulic analysis, custom engineering, calibration, technical support, and flow meter rehabilitation to help customers maximize long-term measurement performance.

Venturi Meter Reconfiguration

Reconfiguring 72″ Venturi Meters Without Rebuilding the Pipeline

See how PFS re-engineered two existing 72-inch Venturi meters to fit a new piping configuration, helping the customer avoid costly pipeline reconstruction while maintaining accurate flow measurement.

Read the Full Case Study

Cryogenic & Low Temperature Flow Meter Services & Support

Cryogenic processes require dependable flow measurement throughout the life of the system. PFS supports engineers, plant operators, and EPC firms with services that help optimize meter performance, verify accuracy, and extend equipment life.

flow meter rehabilitation

Meter Rehabilitation

Restore performance in existing flow meters through inspection, repair, modification, and recalibration.

Utah Laboratory Calibration Services

Laboratory Calibration

Verify meter accuracy under controlled conditions to support dependable measurement and process confidence.

Hydraulic Analysis

Evaluate flow conditions, pressure loss, operating requirements, and installation constraints to optimize meter selection and system performance.

Venturi Meter

Engineering & Technical Support

Receive application-specific guidance for product selection, custom engineering, installation planning, troubleshooting, and technical support.