ANSI/CAN/ULC 312-22 Check valves for fire-protection service
Publication Year
2022
Document Status
Current
Abstract
Specifies check valves of 1 NPS and larger, used in piping systems supplying water for fire protection service.
Document History
Supersedes UL 312-10.
Publisher Information
Underwriters Laboratories
Established in 1894 as the Underwriters' Electrical Bureau, UL is a global safety consulting and certification company, approved to perform safety testing by the U.S. federal agency of Occupational Safety and Health Administration.
333 Pfingsten Road
Northbrook
UL
USA
Tel: +1 877 854-3577
