Advertisement
Sprinkler 124 d
General Guidelines:
Maximum Roof or Ceiling Slope: 2 in 12 (167 mm/m or 9.5 degrees).
Sprinkler Position: Approved for use only in the pendent position. Align the deflector parallel with the ceiling or roof.
System Type: Wet systems only.
Deflector Distance from Walls: At least 4" (102 mm) from walls, and no more than one-half the allowable distance permitted
between sprinklers.
Clearance from Deflector to Top of Storage: At least 36" (914 mm).
Maximum Distance Between Sprinklers: The maximum area of coverage allowed per sprinkler is 100 ft
•
For buildings over 30 ft (9,1 m) high, spacing between sprinklers and/or branch lines must be from 8 to 10 ft (2,4 to 3,1 m)**.
•
For building heights up to 30 ft (9,1 m), the spacing allowed between sprinklers and/or branch lines is 8 to 12 ft (2,4 to
3,7 m), provided the area covered per sprinkler does not exceed the maximum 100 ft
**Refer to the Installation Standards for permissible deviations from the maximum sprinkler spacing rules above, to eliminate obstructions
created by trusses and bar joists when using ESFR sprinklers.
Note: If the ceiling is beam and girder or panel construction, locate sprinklers in the bays rather than under the beams.
cULus Listing Requirements: ESFR Pendent Sprinkler VK510 is cULus Listed as indicated in the Approval Chart for installation in
accordance with the latest appropriate NFPA standards (including NFPA 13) for ESFR Pendent K25.2 Sprinklers, for:
•
Protecting rack storage of certain specified materials up to 40 ft (12,2 m) high in buildings with 45 ft (13,7 m) high ceil-
ings with NO in-rack sprinklers.
•
Exception to NFPA 13 sprinkler installation rules for ESFR Pendent K25.2 Sprinklers:
cULus Listing Requirement for Buildings up to 40 ft. (12,2 m) High: Install with the deflector between 6" and 18"
(152 and 457 mm) below the ceiling.
cULus Listing Requirement for Buildings Between 40 ft. (12,2 m) and 45 ft. (13,7 m) High: Install with the deflector
between 6" and 14" (152 and 356 mm) below the ceiling.
•
The minimum area of coverage allowed per sprinkler is 80 ft
FM Approval Requirements: ESFR Pendent Sprinkler VK510 is FM Approved as indicated in the Approval Chart for instal-
lation in accordance with the latest applicable FM Loss Prevention Data Sheets (including 2-2 and 8-9) and Technical
Advisory Bulletins for ESFR Pendent K25.2 Sprinklers for:
•
Protecting rack storage of certain specified materials up to 40 ft (12,2 m) high in buildings with 45 ft (13,7 m) high ceil-
ings with NO in-rack sprinklers.
•
FM Global Loss Prevention Data Sheet 2-2 provides the following positioning requirement: Install K25.2 ESFR sprin-
klers with the center line of the thermal sensing element located between 4" and 13" (102 and 330 mm) below the
ceiling. Position the deflector between 5" and 18" (152 and 457 mm) below the ceiling.
•
The minimum area of coverage allowed per sprinkler is 64 ft
NOTE: The FM installation guidelines may differ from cULus and/or NFPA criteria.
IMPORTANT: Always refer to Bulletin Form No. F_091699 - Care and Handling of Sprinklers. Viking ESFR Pendent
Sprinklers are to be installed in accordance with the latest edition of Viking technical data, the latest applicable
Factory Mutual Loss Prevention Data Sheets, including 2-2 and 8-9, the latest standards of VdS, NFPA, and any
other Authorities Having Jurisdiction, and also with provisions of governmental codes, ordinances, and standards
whenever applicable.
TECHNICAL DATA
DESIGN CRITERIA
(also applies for the ESFR Cold Storage System)
(Also refer to the Approval Chart on page 124 c.)
ESFR PENDENT SPRINKLER
2
(9,3 m
2
2
(7,4 m
) per NFPA 13.
2
2
(5,8 m
) per FM Global Loss Prevention Data Sheet 2-2.
August 24, 2006
SIN VK510 (K25.2)
2
2
(9,3 m
)**.
2
) allowed**.
Advertisement
