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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
cULus Listing Requirements: ECOH Pendent Sprinkler VK572 is cULus Listed as Standard and Quick Response for installation in accordance with
the latest edition of NFPA 13 for extended coverage pendent spray sprinklers as indicated below:
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The minimum water supplies and maximum areas of coverage shown in Approval Chart 1 are designed to provide the following design densities:
0.15 gpm/ft
(6.1 mm/min) for Ordinary-Hazard Group I densities; 0.2 gpm/ft.
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The sprinkler installation rules contained in NFPA 13 for extended coverage pendent spray sprinklers must be followed with the exception that
•
cULus Listing requires the spacing between Viking ECOH Pendent Sprinklers to be a minimum of 9 ft. (2.75 m) to prevent cold soldering.
Viking ECOH Pendent Sprinklers are cULus Listed for use in unobstructed construction, and noncombustible obstructed construction consisting
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of solid steel and/or concrete beams as defined in the latest edition of NFPA 13.
Ceiling slope not to exceed 2/12 (9.5°).
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Also, Viking ECOH Pendent Sprinkler VK572 is specifically cULus Listed for:
For non-combustible obstructed construction within trusses or bar joists having non-combustible web members greater than 1" (25.4 mm) when
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applying the 4 times obstruction criteria rule as defined in NFPA 13 under "Obstructions to Sprinkler Discharge Pattern Development".
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For installation under concrete tees when installed as follows:
1. The stems of the concrete tee construction must be spaced between 3 ft (0.9 m) and 7 ft-6 in (2.3 m) on center. The depth of the concrete
tees must not exceed 30 in (762 mm). The maximum permitted concrete tee length is 32 ft (9.8 m). However, where the concrete tee
length exceeds 32 ft (9.8 m), non-combustible baffles, equal in height to the depth of the tees, can be installed so that the space between
the tees does not exceed 32 ft (9.8 m).
2. The sprinkler deflector is to be located in a horizontal plane at or above 1" (25.4 mm) below the bottom of the concrete tee stems.
IMPORTANT: Always refer to Bulletin Form No. F_091699 - Care and Handling of Sprinklers. Also refer to Form No. 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.
Form No. F_072313
19.02.21
TECHNICAL DATA
The Viking Corporation, 210 N Industrial Park Drive, Hastings MI 49058
DESIGN CRITERIA - UL
(Also refer to Approval Chart 1.)
Rev 19.1
EC/QREC ORDINARY
HAZARD PENDENT
SPRINKLER VK572 (K14.0)
(8.1 mm/min) for Ordinary-Hazard Group II densities.
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