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UL 1478

4th Edition, October 30, 2008

Complete Document

UL Standard for Safety Fire Pump Relief Valves

Includes all amendments and changes through Revision Page(s) , February 8, 2013


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Product Details:

  • Revision: 4th Edition, October 30, 2008
  • Published Date: February 8, 2013
  • Status: Active, Most Current
  • Document Language: English
  • Published By: UL (UL)
  • Page Count: 16
  • ANSI Approved: Yes
  • DoD Adopted: No

Description / Abstract:

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.

Requirements for the installation and use of these valves are included in the Standard for the Installation of Centrifugal Fire Pumps, NFPA 20.