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Sprinkler 121 b
Viking ESFR Upright SIN VK520
Sprinkler Wrench: Part No. 05118CW/B
Figure 1
Ordinary Temperature Rated Sprinkler
Intermediate Temperature Rated Sprinkler
NOTE: The sprinkler is contained
in a plastic cap for protection
during shipping and installation.
Carefully remove the cap from the
sprinkler AFTER installation.
(Dimensions are approximate.)
Figure 2
TECHNICAL DATA
Sprinkler Temperature
Sprinkler Nominal
Classification
Temperature Rating
Ordinary
Intermediate
Approval Chart
Viking ESFR Upright Sprinkler SIN VK520
Upright
NPT Thread
Deflector
Size
Fast Response
Inches
mm
Fusible
3/4
20
Element
Approved Sprinkler Temperature Ratings
A - 165 °F (74 °C)
1
The temperature rating is stamped on the deflector.
2
Based on NFPA-13. Other limits may apply, depending on fire loading, sprinkler location,
and other requirements of the Authority Having Jurisdiction. Refer to specific installation
standards.
3
Base part number shown. For complete part number, refer to the price list.
4
Metric K-Factor shown is for use when pressure is measured in kPa. When pressure is
measured in BAR, multiply the metric K-Factor shown by 10.0.
5
This table shows listings and approvals available at the time of printing. Other approvals
may be in process.
6
Refer to the latest Factory Mutual Loss Prevention Data Sheets and standards of the
National Fire Protection Association.
7
Accepted for use, City of New York Department of Buildings, MEA 89-92-E, Vol. 18.
Installation Guidelines
Maximum Roof or Ceiling Slope: 2 in 12 (167 mm/m or 9.5 degrees).
Note: If the ceiling is beam and girder or panel construction, locate sprinklers in the bays
rather than under the beams.
Sprinkler Position: Approved for use only in the upright position in wet systems: FM Global
Loss Prevention Data Sheet 2-2 provides the following positioning requirement: Install
K14.0 ESFR sprinklers with the center line of the thermal sensing element located a maxi-
mum of 13" (330 mm) and a minimum of 4" (102 mm) below the ceiling. NOTE: NFPA
13 indicates the following for ESFR upright sprinklers having a 14.0 nominal K-Factor:
Position the deflector a maximum of 12" (305 mm) and a minimum of 3" (76 mm) below
the ceiling.
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).
Distance Between Sprinklers: The maximum area of coverage allowed per sprinkler is 100 ft
2
(9,3 m
)**. The minimum area of coverage allowed per sprinkler is 64 ft
Global Loss Prevention Data Sheet 2-2, and 80 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.
WARNING: Viking ESFR Upright Sprinklers are to be installed in accordance with current
Viking technical data, the latest applicable Factory Mutual Loss Prevention Data Sheets,
including 2-2 and 8-9, the latest standards of the National Fire Protection Association and
any other Authorities Having Jurisdiction, and also with provisions of governmental codes,
ordinances, and standards whenever applicable.
ESFR UPRIGHT SPRINKLER
SIN VK520 (K = 14.0)
Max. Ambient
1
Ceiling Temperature
165 °F (74 °C)
100 °F (38 °C)
205 °F (96 °C)
150 °F (65 °C)
Nominal
Sprinkler
K-Factor
3
Part No.
4
U.S. metric
10625
14.0
20,2
B - 205 °F (96 °C)
Footnotes
2
2
(7,4 m
) per NFPA 13.
2
2
(9,3 m
) allowed**.
January 20, 2006
Frame Paint
2
Color
None
White
Maximum
5,6
Approvals
Pressure
7
(PSIG)
FM
NYC
175 psi
A1, B1
A1
Approved Finish
1 - Brass
2
2
2
(5,8 m
) per FM
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