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Telephone: 269-945-9501 Technical Services: 877-384-5464 Fax: 269-818-1680 Email: techsvcs@vikingcorp.com
Visit the Viking website for the latest edition of this technical data page: www.vikinggroupinc.com
UL Listing Requirements (C-UL-US-EU):
When using Viking Residential Upright Sprinkler VK467 for systems designed to NFPA 13D or NFPA 13R, apply the listed areas of coverage and mini-
mum water supply requirements shown in the Approval Chart.
For systems designed to NFPA 13: The number of design sprinklers is to be the four contiguous most hydraulically demanding sprinklers. The mini-
mum required discharge from each of the four sprinklers is to be the greater of the following:
The flow rates given in the Approval Chart for NFPA 13D and NFPA13R applications for each listed area of coverage, or
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Calculated based on a minimum discharge of 0.1 gpm/sq. ft. over the "design area" in accordance with sections 8.5.2.1 or 8.6.2.1 of NFPA 13.
Minimum distance between residential sprinklers: 9 ft. (2.74 m).
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C-UL-US-EU Listed for installation in residential occupancies with beam ceilings (with horizontal ceilings only).
Sprinkler Location: Locate sprinklers on the underside of the beams (not in the bays or pockets formed by the beams). Refer to Figure 2. The vertical
distance from the sprinkler deflector to the bottom of the primary beam must be between 1" and 3" (25 to 76 mm). The horizontal distance from the
centerline of the sprinkler to the primary beam cannot be more than 2" (51 mm) (Figure 2).
Beam Position: Directly attached to the underside of a combustible or non-combustible smooth ceiling of any height.
Beam Size and Shape (Cross section):
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Depth: Maximum 14" (356 mm) for primary beams. Secondary beam depth cannot be greater than the primary beam.
Width: Unlimited.
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Beam Shape: Rectangular to circular.
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Beam Types: Combustible or non-combustible, solid surface, solid or hollow core.
Beam Spacing:
A. For primary beams, the distance from the wall to the center of the nearest primary beam must be at least 3'-4" (1.0 m), and not more than one-half
the listed sprinkler spacing. Note: Sprinklers may not be required to be located in the first beam nearest the wall. Center-to-center distance between
primary beams is to be a maximum of 16 ft (4.9 m). Refer to Figure 3A.
B. When beam pockets created by the primary beams exceed 20 ft (6.1 m) in length, secondary beams are required as follows (also refer to Figure 3B):
1. Secondary beam depth must be equal to primary beam depth.
2. Secondary beams must be placed so that the bays formed by the primary beams do not exceed 20 ft (6.1 m) in length.
C. When primary beam spans do not exceed 20 ft (6.1 m), secondary beams (not required) may have any distance from wall to nearest secondary beam
and any distance center to center between secondary beams. Refer to Figure 3C.
Also:
When primary beam spans exceed 20ft (6.1m) an alternate protection scheme for the compartment would be to calculate all the sprinklers in the com-
partment. Refer to Figure 5.
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More stringent design requirement.
Secondary beams or baffles would not be required for a compartment space design.
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The minimum required discharge from each sprinkler would utilize flow rates given in the Approval Chart for NFPA 13D and NFPA13R applications
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Lintels: Must be present over doorways exiting the compartment. Lintel height must be at least 8" (203 mm), or at least the depth of the primary beams,
whichever is greater.
Beam and Soffit Arrangements: If a soffit is installed, beams may be arranged within the soffit. The cross section of the soffit may be any size, pro-
vided it does not create an obstruction to water distribution per the obstruction rules of NFPA 13 for residential sprinklers. Where there is a soffit, beam
spacing from the wall is to be measured from the face of the soffit rather than the wall. Refer to Figure 3D. NOTE: The sprinkler area of coverage is to
be measured from the wall.
Definitions:
Primary beams: The main beams that run primarily in one direction.
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Secondary beams: The beams that run perpendicular to the main beams.
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IMPORTANT: Always refer to Bulletin Form No. F_091699 - Care and Handling of Sprinklers. Also refer to Form No.s F_080190,
F_080814, and F_080415 for general care, installation, and maintenance information. Viking sprinklers are to be installed
in accordance with the latest edition of Viking technical data, the appropriate standards of NFPA and any other similar
Authorities Having Jurisdiction, and also with the provisions of governmental codes, ordinances, and standards, whenever
applicable. Final approval and acceptance of all residential sprinkler installations must be obtained from the Authorities
Having Jurisdiction.
Form No. F_090413
Rev 01
TECHNICAL DATA
The Viking Corporation, 210 N Industrial Park Drive, Hastings MI 49058
(Also refer to the Approval Chart.)
BEAM CEILING GUIDELINES
Refer to the Approval Chart for sprinkler areas of coverage and hydraulic design.
November 2022
DESIGN CRITERIA
FREEDOM
RESIDENTIAL
®
UPRIGHT SPRINKLER
VK467 (K4.9)
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