S-12 sprinkler FDNY
Concealed sprinkler - answer A recessed sprinkler with a cover plate
Control valve - answer A valve controlling flow to water based fire protection systems.
Control valves do not include hose valves, inspectors test valves, drain valves, trim
valves for dry pipe, reaction and deluge valves, check valves or relief valves
Deficiency - answer A condition in which the application of the component or system is
not within its designed limits or specifications.
Discharge device - answerA device designed to discharge water or foam water solution
in a predetermined fixed or adjustable pattern. Examples include but are not limited to
sprinklers spray nozzles and hose nozzles
Early suppression fast response sprinkler (ESFR) - answerA type of fast response
sprinkler that is listed for its capability to provide fire suppression of specific high
challenge fire hazards
Extra large orifice sprinklers (ELO) - answerA sprinkler head with an orifice size equal to
or greater than 1" Particularly for protection of high piled storage in warehouses and
less pressure is required to achieve a given discharge density
Extended coverage sprinklers - answerA type of spray sprinkler with a maximum area of
coverage of 400 square feet (20 foot by 20 foot spacing between sprinklers) for light
hazard occupancies to a maximum of 144 square feet (12 foot by 12 foot spacing
between sprinklers) for extra hazard occupancies
Siamese connection - answerFire department connection
Fire department connection - answerA connection normally on the exterior of the
building through which the fire department can pump supplemental water into sprinkler
system standpipe or other system furnishing water for fire extinguishment to supplement
existing water supplies ( formerly known as Siamese connection)
(SIN) - answerSprinkler identification number
Sprinkler identification number(SIN) - answerSprinklers manufactured after January
2000 are required to be marked to identify performance characteristics
An accelerator and an exhauster - answerTwo devices used to reduce the time needed
to open the clapper and allow water into the system. They are both activated when a
drop of 2psi in air pressure is detected in the system
Concealed sprinkler - answer A recessed sprinkler with a cover plate
Control valve - answer A valve controlling flow to water based fire protection systems.
Control valves do not include hose valves, inspectors test valves, drain valves, trim
valves for dry pipe, reaction and deluge valves, check valves or relief valves
Deficiency - answer A condition in which the application of the component or system is
not within its designed limits or specifications.
Discharge device - answerA device designed to discharge water or foam water solution
in a predetermined fixed or adjustable pattern. Examples include but are not limited to
sprinklers spray nozzles and hose nozzles
Early suppression fast response sprinkler (ESFR) - answerA type of fast response
sprinkler that is listed for its capability to provide fire suppression of specific high
challenge fire hazards
Extra large orifice sprinklers (ELO) - answerA sprinkler head with an orifice size equal to
or greater than 1" Particularly for protection of high piled storage in warehouses and
less pressure is required to achieve a given discharge density
Extended coverage sprinklers - answerA type of spray sprinkler with a maximum area of
coverage of 400 square feet (20 foot by 20 foot spacing between sprinklers) for light
hazard occupancies to a maximum of 144 square feet (12 foot by 12 foot spacing
between sprinklers) for extra hazard occupancies
Siamese connection - answerFire department connection
Fire department connection - answerA connection normally on the exterior of the
building through which the fire department can pump supplemental water into sprinkler
system standpipe or other system furnishing water for fire extinguishment to supplement
existing water supplies ( formerly known as Siamese connection)
(SIN) - answerSprinkler identification number
Sprinkler identification number(SIN) - answerSprinklers manufactured after January
2000 are required to be marked to identify performance characteristics
An accelerator and an exhauster - answerTwo devices used to reduce the time needed
to open the clapper and allow water into the system. They are both activated when a
drop of 2psi in air pressure is detected in the system
