UL 193

Standard for Alarm Valves for Fire-Protection Service



1.1 These requirements cover alarm valves for use in automatic wet-pipe sprinkler systems for fire-protection service. Alarm valves covered by these requirements are of either the variable- or constant-pressure type and are of the swing-check pattern. Ordinarily, variable-pressure alarm valves are acceptable for constant-pressure service without alteration; however, in some designs, that part of the device having to do with the delaying of alarms may be omitted.

1.2 Alarm valves covered by these requirements include the sizes 1 - 12 inches, inclusive.

1.3 Alarm valves covered by these requirements are intended for installation and use in accordance with the Standard for the Installation of Sprinkler Systems, NFPA 13 .


DETAILS

  • Edition Number: 11
  • Edition Date: 02/26/2016
  • Price Code: B
  • Type: ulstd
  • ANSI Approved:
  • DOD Approved: