ULSE - UL 1478
Fire Pump Relief Valves
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| Organization: | ULSE |
| Publication Date: | 17 March 2023 |
| Status: | active |
scope:
1.1 These requirements cover direct acting (spring loaded) and pilot operated fire pump relief valves of nominal 3/4 inch (19.05 mm) size and larger, intended for use in water supply systems for fire protection service.
1.2 Requirements for the installation and use of these valves are included in the Standard for the Installation of Stationary Pumps for Fire Protection, NFPA 20.
Document History
UL 1478
March 17, 2023
Fire Pump Relief Valves
1.1 These requirements cover direct acting (spring loaded) and pilot operated fire pump relief valves of nominal 3/4 inch (19.05 mm) size and larger, intended for use in water supply systems for fire...
May 13, 2004
Standard for Fire Pump Relief Valves
1.1 These requirements cover direct acting (spring loaded) and pilot operated fire pump relief valves of nominal 3/4 inch (19.05 mm) size and larger, intended for use in water supply systems for fire...