1.1 These requirements cover the performance of and methods for testing hydrants intended for use in piping systems supplying water for fire-protection service.
1.2 Hydrant types covered by this standard include:
a) Base valve design and
b) Wet barrel design.
1.2A Traffic model hydrants of both the base valve and wet barrel design may be covered by this Standard. However, these requirements are not intended to cover the performance of and methods for testing break features of traffic model hydrants.
1.3 Requirements for the installation and use of hydrants covered by these requirements include, among others, the Standard for the Installation of Private Fire Service Mains, NFPA 24.
1.4 A product that contains features, characteristics, materials, or systems new or different from those in use when the standard was developed, and that involves a risk of fire, electric shock, or injury to persons shall be evaluated using the appropriate additional component and end-product requirements as determined by the intent of this standard.
This revision of UL 246 dated July 29, 2020 includes barrel wall thickness requirements; 8.1, Table 8.1
RevisionsRed Line Std. (8)
CSDS Proposals (14)
CSDS Proposals
An electronic document associated with a UL Standard for Safety or Outline of Investigation, and issued by UL to propose:
UL LLC CRD (1)
Other Updates (1)
Bulletins
These bulletins are not used in CSDS. These are announcement and report type bulletins.
This bulletin announces the availability of the Outline of Investigation for Non-Threaded Connections for Fire Hydrants and Fire Department Connections, UL 246A.
Referenced Standards (0)
Reverse Referenced Standards (1)
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