Flow Calibration Services
NIST-traceable calibration for flow meters, thermal mass flow devices, laminar flow meters, and mass flow controllers. Precision measurement for critical liquid and gas flow applications.
Why Flow Calibration Matters
Flow calibration is necessary for industrial and commercial applications that rely on accurate flow rate measurements of fluids (liquid or gas). Accurate flow measurements ensure proper process control, regulatory compliance, custody transfer accuracy, and product quality. Examples of flow rate measurements are volumetric and mass flow rates. Various types of flow meters, such as thermal mass and laminar, measure flow rates for different purposes and require regular NIST-traceable calibration to maintain accuracy.
Flow Devices We Calibrate
Comprehensive calibration services for all types of flow measurement equipment
Mass Flow Meters
Precision calibration of thermal and coriolis mass flow meters for gas and liquid applications.
- Thermal mass flow meters
- Coriolis mass flow meters
- Mass flow controllers (MFC)
- Mass flow indicators
- Digital mass flow devices
- Inline mass flow sensors
- Portable mass flow meters
Volumetric Flow Meters
Expert calibration of volumetric flow measurement devices for accurate volume-based flow control.
- Turbine flow meters
- Positive displacement meters
- Vortex flow meters
- Ultrasonic flow meters
- Electromagnetic flow meters
- Variable area flow meters (rotameters)
- Paddle wheel flow meters
Laminar Flow Devices
Calibration of laminar flow meters and elements for precision low-flow applications.
- Laminar flow meters
- Laminar flow elements (LFE)
- Low-flow gas meters
- Differential pressure flow devices
- Capillary flow meters
- Laboratory flow standards
Gas Flow Meters
Specialized calibration for gas flow measurement instruments across various pressure ranges.
- Air flow meters
- Natural gas meters
- Compressed air meters
- Nitrogen flow meters
- Oxygen flow meters
- Specialty gas flow devices
- Stack gas flow meters
Liquid Flow Meters
Calibration services for liquid flow measurement across diverse industrial applications.
- Water flow meters
- Chemical flow meters
- Oil flow meters
- Sanitary/hygienic flow meters
- Corrosive liquid flow meters
- High-viscosity flow meters
- Custody transfer meters
Flow Controllers & Transmitters
Expert calibration of flow control and transmission devices for automated systems.
- Mass flow controllers (MFC)
- Flow transmitters (4-20mA)
- Flow indicators and totalizers
- Flow switches and alarms
- Digital flow controllers
- Proportional flow control valves
Our Calibration Process
Multi-point testing with NIST-traceable flow standards for complete accuracy assurance
Receiving & Inspection
Each flow device is logged into our system with unique identification. Visual inspection documents condition, fluid compatibility, and connection specifications.
As-Found Testing
We test your flow meter at multiple flow points across its full range using our NIST-traceable flow standards. This documents the device's accuracy before calibration.
Adjustment & Calibration
Flow devices are adjusted to meet manufacturer specifications or customer requirements. Calibration factors, zero offsets, and span adjustments are made as needed.
As-Left Testing
After calibration, we re-test at the same flow points to verify accuracy. This ensures the device meets required specifications across its entire flow range.
Certification & Documentation
Complete calibration certificates include as-found and as-left data, uncertainty calculations, traceability information, test conditions, and pass/fail status.
Labeling & Return
Devices are marked with calibration date and due date labels. Complete documentation is provided digitally and in print, and instruments are securely packaged for return.
Compliance & Standards
Flow Measurement Standards
We adhere to internationally recognized standards for flow calibration:
- ISO 5167: Measurement of fluid flow
- ASME MFC: Measurement and control of fluids
- API MPMS: Manual of Petroleum Measurement
- AGA Reports: Gas measurement standards
- NIST SP 250: Flow measurement procedures
- Multi-point calibration protocols
NIST Traceability
Every calibration is traceable to the National Institute of Standards and Technology:
- Primary flow standards calibrated at NIST
- Master flow meter standards
- Complete uncertainty analysis
- Documented traceability chain
- Comprehensive calibration certificates
- ISO/IEC 17025 compliant processes
Industry Applications
Our flow calibration services support critical operations across multiple industries:
- Oil & Gas Production
- Chemical Processing
- Pharmaceutical Manufacturing
- Semiconductor Fabrication
- Water & Wastewater Treatment
- Food & Beverage Processing
- HVAC Systems
- Custody Transfer Applications
Calibration Intervals
Recommended calibration frequency depends on usage, accuracy requirements, and criticality:
- Custody Transfer: Quarterly to Semi-annually
- Critical Process Control: Every 6 months
- Regular Use: Annually
- Light Use: Every 2 years
- Reference Standards: Annually
- After Contamination/Damage: Immediately
Ensure Accurate Flow Measurements
Don't risk process control failures, custody transfer disputes, or regulatory non-compliance with uncalibrated flow devices. Schedule your NIST-traceable flow calibration today.
Fast turnaround available • On-site calibration for large systems