UL 1478A

UL Standard for Safety Pressure Relief Valves for Sprinkler Systems

active, Most Current
Buy Now
Organization: UL
Publication Date: 20 May 2013
Status: active
Page Count: 15
scope:

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.

Requirements for installation of these valves are included in the Standard for the Installation of Sprinkler Systems, NFPA 13.

Document History

UL 1478A
May 20, 2013
UL Standard for Safety Pressure Relief Valves for Sprinkler Systems
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...
May 20, 2013
UL Standard for Safety Pressure Relief Valves for Sprinkler Systems
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...
May 20, 2013
UL Standard for Safety Pressure Relief Valves for Sprinkler Systems
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...
December 6, 2011
OUTLINE OF INVESTIGATION FOR PRESSURE RELIEF VALVES FOR SPRINKLER SYSTEMS
These requirements cover pressure relief valves intended for use in sprinkler systems for fire protection service. Pressure relief valves are intended for installation in wet pipe automatic...
December 7, 2006
Outline of Investigation for Pressure Relief Valves for Sprinkler Systems
A description is not available for this item.
February 23, 1998
Outline of Investigation for Pressure Relief Valves for Sprinkler Systems
A description is not available for this item.
Advertisement