• UL 193

UL 193

Alarm Valves for Fire-Protection Service

Underwriters Laboratories , 02/26/2016

Publisher: UL

File Format: PDF

$315.00$631.00


Please note: All interim revisions for this edition available at time of your purchase will be included.

Alarm Valves for Fire-Protection Service
UL 193
1 Scope

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.

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