Valve Standards
ANSI
American National Standards Institute (ANSI) sets the industrial standards for the design and testing of valves. ANSI designates dimensions and performance parameters for all types of valves, including ball valves, gate valves, globe valves and butterfly valves. ANSI also sets standards for pipeline inspection and materials used in valves, such as steel and alloys. The American Petroleum Institute (API) is a close ally of ANSI, and many of the standards it sets are adopted by ANSI.
ASME
In the United States, the American Society of Mechanical Engineers (ASME) works to set the standard for valve design and materials in a number of industries. The institution devotes a subsection of its B16 Standard to valves and related equipment. This six-part collection of standards covers valve materials, dimensions, connections and tests. In addition, the ASME publishes the Boiler and Pressure Vessel Code, a comprehensive set of standards on the design, fabrication and testing of boilers, valves and pressure vessels.
ISO
The International Organization for Standardization (ISO) sets generally accepted valves standards for the global market. This group is composed of national standards bodies from more than 100 countries, and it includes the ANSI. The ISO standards focus on terms, definitions and materials for valves. It also addresses some operational characteristics, such as the operating temperature and pressure of valves.
API
The American Petroleum Institute (API) sets safety, performance and other standards for valves used in oil and gas production, transportation and processing. Valves used in these areas must meet the requirements set by the API. The organization also offers training, certification and licensing to companies that manufacture and inspect valves used in the oil and gas industry.
IEC
The International Electrotechnical Commission (IEC) sets performance and testing standards for valves used in the electrical power industry. This group defines the terms and ratings for electrical pressure and test parameters for electric valves. The IEC also sets standards for actuators, and pressure transducers used to control and monitor electric valves.
BSI
The British Standards Institute (BSI) sets several standards for valves used in the United Kingdom. The institution publishes the BS 5153, BS 5154 and BS 5155 standards that cover safety, performance, design and testing requirements for a variety of valves. The BSI also provides guidance to companies that manufacture valves and offer advice to those who use valves in the U.K.
DIN
The Deutsches Institut für Normung (DIN) is a German standards organization that sets standards for all types of valves used in the European Union. The organizations valve standards cover testing, performance, materials and design specifications. The DIN standards are widely accepted in the EU and other parts of the world.
JIS
The Japanese Industrial Standards (JIS) committee sets standards for valves made and installed in Japan. The organization publishes the JIST 3101 and JIST 3110 standards that address valve design, materials, connections and testing. These standards are based on the ISO standards but have been tailored to meet specific Japanese needs.
Conclusion
As the global market for valves continues to grow, standards organizations progressively develop and refine the standards for valve design, materials, performance and testing. These organizations include the American National Standards Institute (ANSI), American Society of Mechanical Engineers (ASME), International Organization for Standardization (ISO), American Petroleum Institute (API), International Electrotechnical Commission (IEC), British Standards Institute (BSI), Deutsches Institut für Normung (DIN) and Japanese Industrial Standards (JIS) committees. By adhering to these standards, companies ensure the safety and performance of their valves.
