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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
STANDARD COVERAGE PENDENT
cULus Listing Requirements:
The sprinkler VK426 is cULus Listed as a Quick Response, Flush, Pendent Sprinkler as indicated in the Approval Chart for installation in accordance
with the latest edition of NFPA 13. The following requirements must be followed:
•
Designed for use in Light and Ordinary Hazard occupancies.
•
The sprinkler must be installed in the pendent position in fixed fire protection systems (wet, dry, deluge, or preaction systems).
Protection areas and maximum spacing shall be in accordance with the tables provided in NFPA 13.
•
Minimum spacing allowed is 6 ft. (1.8 m) unless baffles are installed in accordance with NFPA 13.
•
Minimum distance from walls is 4 in. (100 mm).
•
•
Maximum distance from walls shall be no more than one-half of the allowable distance between sprinklers. The distance shall be measured perpen-
dicular to the wall.
The sprinkler installation and obstruction rules contained in NFPA 13 for standard coverage pendent spray sprinklers must be followed.
•
EXTENDED COVERAGE PENDENT
cULus Listing Requirements:
The sprinkler VK650 is cULus Listed as an Extended Coverage, Quick Response, Flush, Pendent Sprinkler as indicated in the Approval Chart for
installation in accordance with the latest edition of NFPA 13. The following requirements must be followed:
Designed for use in Light Hazard occupancies only.
•
The sprinkler must be installed in the pendent position in fixed fire protection systems (wet, dry, deluge, or preaction systems).
•
Minimum spacing allowed is 8 ft. (2.4 m) unless baffles are installed in accordance with NFPA 13.
•
•
Maximum protection area allowed is 16' x 16' (4.9 m x 4.9 m).
Minimum distance from walls is 4 in. (100 mm).
•
Maximum distance from walls shall be no more than one-half of the allowable distance between sprinklers. The distance shall be measured perpen-
•
dicular to the wall.
•
The sprinkler installation and obstruction rules contained in NFPA 13 for extended coverage pendent spray sprinklers must be followed.
STANDARD COVERAGE HORIZONTAL SIDEWALL
cULus Listing Requirements:
The sprinkler VK427 is cULus Listed as a Quick Response, Flush, Horizontal Sidewall Sprinkler as indicated in the Approval Chart for installation in
accordance with the latest edition of NFPA 13. The following requirements must be followed:
•
Designed for use in Light and Ordinary Hazard occupancies below smooth, flat, horizontal ceilings.
•
The sprinkler must be installed in the horizontal sidewall position in fixed fire protection systems (wet, dry, deluge, or preaction systems).
Orient the top of the deflector parallel with the ceiling. The wrench is marked with the word "top".
•
Must be located with deflector 4" to 12" (102 mm to 304 mm) below the ceiling, and flush with the wall in which they are installed.
•
Protection areas and maximum spacing shall be in accordance with the tables provided in NFPA 13.
•
•
Minimum spacing allowed is 6 ft. (1.8 m) unless baffles are installed in accordance with NFPA 13.
Minimum distance from end walls is 4 in. (102 mm).
•
Maximum distance from end walls shall be no more than one-half of the allowable distance between sprinklers. The distance shall be measured
•
perpendicular to the wall.
The sprinkler installation and obstruction rules contained in NFPA 13 for standard coverage sidewall spray sprinklers must be followed.
•
EXTENDED COVERAGE HORIZONTAL SIDEWALL
cULus Listing Requirements:
The sprinkler VK651 is cULus Listed as an Extended Coverage, Quick Response, Flush, Horizontal Sidewall Sprinkler as indicated in the Approval
Chart for installation in accordance with the latest edition of NFPA 13. The following requirements must be followed:
Designed for use in Light Hazard occupancies only below smooth, flat, horizontal ceilings.
•
•
The sprinkler must be installed in the horizontal sidewall position in fixed fire protection systems (wet, dry, deluge, or preaction systems).
Orient the top of the deflector parallel with the ceiling. The wrench is marked with the word "top".
•
Must be located with deflector 4" to 12" (102 mm to 304 mm) below the ceiling, and flush with the wall in which they are installed.
•
Maximum protection area allowed is 16' x 16' (4.9 m x 4.9 m).
•
•
Maximum spacing shall be in accordance with the tables provided in NFPA 13.
•
Minimum spacing allowed is 8 ft. (2.4 m) unless baffles are installed in accordance with NFPA 13.
Minimum distance from end walls is 4 in. (102 mm).
•
Maximum distance from end walls shall be no more than one-half of the allowable distance between sprinklers. The distance shall be measured
•
perpendicular to the wall.
•
The sprinkler installation and obstruction rules contained in NFPA 13 for extended coverage sidewall spray sprinklers must be followed.
IMPORTANT: Always refer to Form No. F_091699 - Care and Handling of Sprinklers. Also refer to Form No. F_080614 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, LPCB, APSAD, VdS or other similar organizations, and
also with the provisions of governmental codes, ordinances, and standards, whenever applicable.
Form No. F_032319
Rev 02
© 2023 Viking Group Inc. All rights reserved
TECHNICAL DATA
The Viking Corporation, 210 N Industrial Park Drive, Hastings MI 49058
DESIGN CRITERIA - UL
January 2023
INSTITUTIONAL SPRINKLERS K5.6
Page 9 of 10
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