TECHNICAL DATA
QUICK RESPONSE
EXTENDED COVERAGE
CONCEALED HSW
SPRINKLER VK680 (K8.0)
The Viking Corporation, 210 N Industrial Park Drive, Hastings MI 49058
Telephone: 269-945-9501 Technical Services: 877-384-5464 Fax: 269-818-1680 Email: [email protected]
Visit the Viking website for the latest edition of this technical data page www.vikinggroupinc.com.
Form No. F_050611 18.10.25 Rev 17.1.P65
Page 5 of 5
DESIGN CRITERIA
(Also refer to the Approval Chart on page 3.)
cULus Listing Requirements:
QREC Concealed HSW Sprinkler VK680 is cULus Listed for installation in accordance with the latest edition of NFPA 13 for extended coverage sidewall
spray sprinklers:
•
Limited to Light Hazard occupancies with smooth, flat, horizontal ceilings only.
•
Minimum distance between sprinklers: 9 ft. (2.7 m)
•
THE TOP OF THE SPRINKLER BODY AND THE TOP OF THE INSTALLATION WRENCH ARE MARKED “TOP”.
Orient the top of the sprinkler
element parallel with the ceiling as shown in Figure 3.
•
Minimum distance from end walls is 4 in. (102 mm).
•
Maximum distance from the end wall 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.
NOTE:
Concealed sprinklers must be installed in neutral or negative pressure plenums only.
IMPORTANT: Always refer to Bulletin 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, FM Global, LPCB, APSAD, VdS or other similar organiza-
tions, and also with the provisions of governmental codes, ordinances, and standards, whenever applicable.
Figure 4:
Sprinkler VK680 Dimensions and Cover Installation
3/4”
(20 mm)
NPT
2-3/16” (56 mm)
diameter opening
required in the wall.
Concealed Sprinkler Wrench** 16208W/R
** A 1/2” ratchet is required (not available from Viking).
To install the Cover Plate assembly, gently push it onto the
sprinkler body with even pressure using the palm of the hand.
1/4” (6 mm) Horizontal
adjustment available.
Concealed
sprinkler body
with protective
cap
2-3/16”
(56 mm)
Maximum
1-15/16”
(49 mm)
Minimum
3-5/16”
(84 mm)
1/4”
(6 mm)
Replaces Form No. F_050611 Rev 17.1
(Added P65 Warning.)
