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International Flow Meter Standards

A comprehensive guide to international flow meter standards compiled by experts with 35 years of experience. Covers the key content and practical application of major standards such as ISO, ASME, JIS and KS.

6
Major international standards
35
Years of application experience
15+
Countries supplied
ISO 5167
Reference standards

ISO 5167

International standard for DP flow measurement

The international standard for measuring fluid flow by differential pressure, covering the design and use of orifice plates, venturi tubes and flow nozzles.
  • ISO 5167-1: General principles and requirements
  • ISO 5167-2: Orifice plates
  • ISO 5167-4: Venturi tubes
  • ISO 5167-6: Wedge meters
Details

ASME MFC-3M

ASME flow measurement standards

Standards for measuring fluid flow in pipes issued by the American Society of Mechanical Engineers, providing detailed guidance on the design, installation and use of DP flow meters.
  • Supports SI and imperial units
  • Detailed uncertainty analysis methods
  • Practice-oriented application guidance
  • Widely adopted by North American industry
Details

JIS Z 8762

Japanese Industrial Standard for DP flow meters

A Japanese Industrial Standard setting criteria for the design, manufacture and inspection of DP flow meters, widely used across Asia.
  • High compatibility with ISO standards
  • Reflects Asian industrial practice
  • Metric unit based
  • Accommodates precision manufacturing requirements
Details

KS A 0612

Korean Industrial Standard for differential-pressure flow measurement

A Korean Industrial Standard specifying the method of measuring flow in pipes by means of differential-pressure primary devices such as orifice plates, nozzles and venturi tubes, corresponding to ISO 5167.
  • Reflects domestic regulations and certification requirements
  • Harmonized with ISO/JIS standards
  • Technical documentation in Korean
  • Optimized for the domestic industrial environment
Details

API 21.1

American Petroleum Institute DP flow meter standard

A DP flow meter standard for the oil and gas industry issued by the American Petroleum Institute, providing guidance for accurate flow measurement under extreme conditions.
  • For extreme environmental conditions
  • High accuracy requirements
  • Safety-focused design
  • Recognized for international trade
Details

AGA Report No. 3

American Gas Association natural gas metering standard

The natural gas orifice metering standard issued by the American Gas Association, the most widely used international standard in natural gas trading.
  • Optimized for natural gas properties
  • Custody transfer accuracy
  • Real-time correction
  • Recognized internationally
Details
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Technical Resources

Based on 35 years of experience, we provide resources detailing the key content and practical application of each standard.

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Practical Application Guide

A practice-oriented guide covering not only theory but also field application methods, precautions and troubleshooting.

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International Standards Compliance

Based on export experience in more than 15 countries, we provide certification requirements and standard application examples for each country.

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Latest Revisions

We continuously monitor the latest revisions of each standard to always provide up-to-date information.

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