101 Guide To Industrial Valve Standards In America

Home 101 Guide To Industrial Valve Standards In America
Dombor Concentric Butterfly Valve
Source: Dombor

In the commercial, residential, and industrial sectors, valves have a wide range of uses. There are many significant regulatory groups that offer standards to assure correct performance, interoperability, and user safety because of this broad range of usage of the valves.

The industrial valves should correspond to specific standards based on the intended use in order to satisfy legal requirements for safety, hygienic conditions, or other issues. Engineers should evaluate the standard papers available from international and the relevant national standard organization before developing a valve for or utilizing a valve in a product or system design for global application.

Product standards from other standards organizations are typically approved for usage in target countries by national standards bodies. Additionally, they administer technical advisory groups for ISO and offer national accreditation services for standard-setting and certifying bodies.

A few valve standards from standard federal bodies are ANSI Valve Standards of United States, CSA Valve Standards of Canada, BSI Valve Standards of United Kingdom, DIN Valve Standards of Germany), JSA Valve Standards of Japan, and EEMUA Valve Standards of United Kingdom. 

NFPA Valve Standards and UL Valve Standards are examples of valve standards from safety-focused associations. Numerous additional industry-specific, federal, and international standards associations also address product safety issues or ensure that products function safely in their intended applications without causing human or property loss. 

What Are Different Valve Standards In America 

The different types of industrial valve standards in America are API standards, ASME standards, ANSI standards, and MSS standards. 

ANSI Valve Standards 

Ball Valve
Source: Dombor 

The creation of voluntary consensus standards for American goods, services, procedures, systems, and personnel is managed by the American National Standards Institute (ANSI), a private non-profit association. In order for American goods to be used throughout the world, the agency also connects foreign standards with US standards.

The ANSI-NSF international standards are utilized for commercial kitchens, including those in cafeterias, restaurants, diners, and so on. The ANSI or APSP standards for suction entrapment prevention, barriers, and hot tubs, spas, and pools are also highly used. The specifications for pumps are set by ANSI or HI. 

All US sectors employ the guidelines of the standards created by the American National Standards Institute (ANSI), which are also used to offer the consensus processes necessary to obtain ANSI accreditation. IHS Markit delivers standards for a broad range of industries. 

There are various ANSI standards, including ANSI A126, ANSI A181, ANSI 816.10 Face, ANSI 816.34, ANSI 8127.1, ANSI standard 294, ANSI standard 599, ANSI standard 607, and so on. With ANSI standards, it is possible to: 

  • Ensure the acceptance of standards
  • Process improvement
  • Reduce needless work modification

Below are the widely utilized ANSI valves for different applications. 

ANSI A126: Specification for Gray Iron Castings for Valves, Flanges, and Pipe Fittings

For castings intended to be used as flanges, pipe fittings, and valve pressure-retaining parts, this standard includes three grades of grey iron. The values given in inch-pound units should be taken as being the norm.

ANSI B16.10: Face-to-face and end-to-end Dimension of Ferrous Valves 

The dimensions of straightway valves (face-to-face and end-to-end) and angle valves (middle-to-face and middle-to-end) are covered by this standard. For valves of a specific material, kind, size, rating class, and end connection, it is meant to guarantee installation interchangeability.

ASME B16.34: Valves Flanged, Threaded and Welding End Applies to New Construction

It includes wafer or flangeless valves made of nickel-base alloys, steel, and other alloys. It also covers pressure-temperature ratings, substances, dimensions, tolerances, nondestructive inspection requirements, testing, and labeling. 

API Valve Standards 

API 6D valve
Source: SIO 

The American Petroleum Institute (API) is a pioneer in the creation of operational and equipment standards for the petroleum and petrochemical industries, with expertise ranging from drill bits to environmental protection. Numerous have been adopted by ISO for global adoption and used in state and national regulations.

Every year, API disseminates more than 200,000 publications. The publications, technical criteria, electronic products, and online services are made to aid users in increasing the effectiveness and cost-effectiveness of their procedures, ensuring compliance with legal and regulatory provisions, and preserving the environment while also protecting the health and ensuring safety.

In accordance with American Petroleum Institute (API) standards, everything from drill bits to environmental protection should be made of safe, interchangeable substances and follow tried-and-true engineering and operational procedures. Manuals, specifications, standards, suggested practices, rules, bulletins, and technical reports are all included.

More than 20 API standards are available that cover the creation, use, and safety of valves. They include API 526, API 527, API 528, API 529, API 560, API 594, API 595, API 597, API 598, API 599, API 6D, API 600, API 602, API 603, API 607, API 608, API 609, API 610, API 611, API 612, API 616, API 617, API 618, API 619, API 620, API 621, API 623, and so on. The API guidelines are beneficial in:

  • Increasing operational excellence
  • Assure adherence to safety procedures
  • Reduce the likelihood of device failure.

The most common and widely used API standards are as follows: 

API 6D: Specification For Pipeline Valves 

An adaptation of ISO 14313: 1999, Petroleum and Natural Gas Industries is API 6D. The ball, plug, gate, and check valves utilized in pipeline systems are designed, manufactured, tested, and documented in accordance with the standards laid out in this international standard. A reliable industrial valve manufacturer produces different valve types based on these standards. 

API STD 598: Valve Inspection And Testing 

The provisions for inspection, additional examination, and pressure testing for resilient-seated and metal-to-metal seated gate, check, plug, globe, and butterfly valves are covered by the standard. 

API STD 527: Seat Tightness of Pressure Relief Valves

This standard describes methods of determining the seat tightness of metal and soft-seated pressure relief valves, including those of conventional, bellows and pilot-operated designs.

API STD 609: Butterfly Valves 

For grey iron, ductile iron, steel, bronze, nickel-based alloy, or special alloy butterfly valves that ensure tight shut down in the closed position, this standard includes design, substances, face-to-face dimensions, pressure to temperature ratings, examination, inspection, and test provisions. 

ASME Valve Standards 

Check Valve
Source: Dombor 

As a non-profit membership organization, ASME, originally known as the American Society of Mechanical Engineers, facilitates teamwork, knowledge exchange, career enrichment, and skill growth across all engineering disciplines with the aim of assisting the global engineering community in creating solutions that will improve people’s lives and standard of living. It is a tiny group of prominent entrepreneurs that founded ASME in 1880, and throughout the years, it has expanded to include more than 120,000 members in more than 150 nations.

The American Society of Mechanical Engineers (ASME) creates standards for a wide range of products, including compressors, cranes, hoists, drawings and terminology, fasteners, flow measurement, industrial trucks, elevators, escalators, man lifts, piping, pressure vessels, pumps, nuclear power, environmental control, storage tanks, turbines, and so on.

The ASME Boiler and Pressure Vessel Code is the most frequently cited code and is utilized by manufacturers, technicians, and inspectors all around the world. By utilizing ASME standards, it is possible to:

  • Allow communication and information sharing between all engineering disciplines
  • Ensure mechanical systems and products are interoperable.
  • Product performance certification

There are several ASME standards, which are: ASME A105/105M, ASME A181/181M, ASME A182/182M, ASME A727/727M, ASME A961, ASME B16.10, ASME B16.34, ASME B462, ASME B834, ASME D5500, ASME F885, ASME F992, ASME F993, ASME F1020, ASME F1098, ASME F1271, ASME F1370, ASME F1508, ASME F1565, ASME F1792, ASME F1793, ASME F1794, ASME F1795, ASME A230, ASME A232, ASME A350, ASME A338, ASME A694, ASME A404, ASME A522, etc. 

Here are the highly popular ASME standards, which are used for several applications. 

ASME B31.1: Power Piping

Specifically covered by this code are valves used in electrical and geothermal power generators as well as heating and cooling power station systems. Since it applies to boiler and pressure vessel systems all across the world, B31.1 is one of the ASME’s most often requested standards. It ought to be utilized in conjunction with the ASME Process Piping Code. 

ASME B16.34: Valves Flanged, Threaded and Welding End 

In high-pressure and high-temperature applications like boilers and water heaters, this standard specifies the requirements for the manufacture and usage of flanged, threaded, and welding ends that are cast, forged, and fabricated. In contrast to improvements to existing construction, it is most frequently utilized in new construction.

ASME B31.3: Process Piping 

This standard should be utilized by the businesses that create and maintain process pipework, especially those working in the chemical and petroleum refinery sectors. It ought to be used in conjunction with the Power Piping standard from ASME codes. 

ASME B31.4: Pipeline Transportation Systems for Fluids and Slurries 

The piping systems between production facilities and receiving terminals that transfer fluid or non-hazardous slurries are covered by this standard. Coal, mineral ores, and concentrates can all be considered non-hazardous aqueous slurries. This standard is utilized by manufacturers, regulators, inspectors, owners, and designers of fluid pipelines.

MSS Valve Standards 

Wedge Gate Valve
Source: Dombor 

The Manufacturers Standardization Society (MSS) of the Valve and Fittings Industry was formally established in 1924. It is a non-profit technical organization dedicated to the advancement of federal and international codes and standards for valves, valve modification, valve actuators, pipe fittings, pipe supports, pipe hangers, flanges, and related seals.

The main goal of MSS standards is to give its members the tools they need to create engineering best practices for the industry as a whole and the consumers of its goods. The Society, the only entity completely focused on the technical requirements of the sector, presently has 24 technical councils that establish, amend, and reaffirm sector standards.

International codes and standards are published by the Manufacturers Standardization Society of the Valve and Fittings Industry (MSS) to guarantee the compatibility, observance, and functionality of procedure piping systems. For items like valves, pipe fittings, flanges, and seals, MSS standards address requirements for process piping in the petrochemical, food, beverage, petroleum, and utility industries.

The MSS valve standard list includes 

MSS SP-6, MSS SP-9, MSS SP-25, MSS SP-42, MSS SP-43, MSS SP-44, MSS SP-45, MSS SP-51, MSS SP-58, MSS SP-65, MSS SP-69, MSS SP-70, MSS SP-71, MSS SP-72, MSS SP-75, MSS SP-79, MSS SP-81, MSS SP-83, MSS SP-85, MSS SP-88, MSS SP-95, MSS SP-97. These industrial norms assist in:

  • Encouraging interoperability
  • Ensure excellence
  • Boost safety 

Go through the below listed MSS valve standards that are used around the world for several applications. 

MSS SP 25: Ideal Marking System for Valves, Flanges, Fittings, and Unions 

The labeling of new valves, fittings, flanges, and unions utilized in piping connections, such as flanged, brazed, threaded, soldered, or welded joints, is covered by this standard marking system.

MSS SP-67: Butterfly Valves 

The specifications for butterfly valves’ dimensions, design, testing, and labeling are covered by this standard. It includes pressure ratings for flanged-end, single-flange (lug-type), flangeless (wafer-type), grooved-end, and shouldered-end valves in sizes NPS 1½. 

MSS SP-82: Valves pressure testing procedures 

This standard contains rules for specifying the real type of testing utilized and defines various production pressure examinations that can be conducted on valves. Production units made for sale are subjected to pressure tests, including closing member and shell examinations, to evaluate the production units’ ability to contain pressure.


There are various types of valve standards followed by valve manufacturers across the world. Some countries even have their own set of valve standards and regulating bodies. The above-listed valve standards are primarily used in America and in some other nations as well. 

In order to make the best quality valves, the manufacturers rely on the rules specified in these standards. Contact a valve manufacturer and get instant quotes for bulk valve orders for industrial purposes.