UL 1478A:2017
$78.65
Pressure Relief Valves for Sprinkler Systems
Published By | Publication Date | Number of Pages |
UL | 2017-08-04 | 15 |
1 Scope
1.1 These requirements cover pressure relief valves intended for use in sprinkler systems for fire protection service to relieve excessive pressures caused by thermal expansion, downstream of a pressure reducing valve or in valve trim.
Section 1 effective May 20, 2015
1.2 Requirements for installation of these valves are included in the Standard for the Installation of Sprinkler Systems, NFPA 13.