IIAR is pleased to announce the publication of ANSI/IIAR 3-2022. This publication is a safety standard to specify the performance criteria to ensure the product integrity of ammonia refrigeration valves and strainers.
It has been significantly revised for the 2022 edition and includes requirements for materials of construction, pressure envelope requirements, marking, production testing, and documentation. It is not applicable to safety relief valves nor compressor slide valves.
In accordance with IIAR and ANSI requirements, the standard was reviewed and revised for periodic maintenance. The standard includes requirements for materials of construction, pressure envelope requirements, marking, production testing, and documentation.
It is not applicable to safety relief valves nor compressor slide valves. This revision includes new requirements for manufacturers’ documentation, methods of vacuum leak testing, methods for production testing, addresses the requirements for butterfly valves, and includes a new informative appendix. The new standard is available in electronic or hardcopy formats through the IIAR website.
For more information and to purchase either digital or hard-copies, please click here.