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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
Base Part
Sprinkler
SIN
Number
Style
1
10633
VK531
Upright
19304
VK5311
Upright
19305
VK5311
Upright
Approved Temperature Ratings
A - 155 °F (68 °C), 175 °F (79 °C), 200 °F (93 °C), and 286 °F (141 °C)
Base part number shown. For complete part number, refer to Viking's current price schedule.
1
Metric K-factor measurement shown is when pressure is measured in Bar. When pressure is measured in kPa, divide the metric K-factor shown by
2
10.0.
This table shows the listings and approvals available at the time of printing. Other approvals may be in process.
3
Listed by Underwriters Laboratories Inc. for use in the U.S. and Canada.
4
cULus-Listed only for use in wet pipe sprinkler systems (or preaction systems qualifying as wet systems).
5
Meets New York City requirements, effective July 1, 2008.
6
cULus Listed as corrosion-resistant.
7
cULus Listing Requirements:
Quick Response Extra-Large Orifice Upright Sprinkler VK531 is cULus Listed for installation in accordance with the latest edition of NFPA 13 for standard
upright spray sprinklers:
Designed for use in hazard occupancies up to and including Ordinary Hazard Group II with a minimum operating pressure of 7 PSI (0.5 bar).
•
• Also Listed for use in High-Piled Storage Occupancies as defined in NFPA 13 with a minimum operating pressure of 7 PSI (0.5 bar).
• Listed only for use in wet pipe sprinkler systems (or preaction systems qualifying as wet systems).
The sprinkler installation and obstruction rules contained in NFPA 13 for standard spray upright sprinklers must be followed.
•
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, LPCB, APSAD,
VdS or other similar organizations, and also with the provisions of governmental codes, ordinances, and stan-
dards, whenever applicable.
Form No. F_120699
18.10.11
The Viking Corporation, 210 N Industrial Park Drive, Hastings MI 49058
Approval Chart 1 (UL)
Quick Response Extra-Large Orifice Upright Sprinkler VK531
Maximum 175 PSI (12 Bar) WWP
Thread Size
NPT
BSP
U.S.
3/4"
20 mm
11.2
3/4"
20 mm
11.2
1/2"
15 mm
11.2
DESIGN CRITERIA - UL
(Also refer to Approval Chart 1 above.)
Rev 18.2.P65
TECHNICAL DATA
Nominal
Overall Length
K-Factor
metric
Inches
2
161.3
2-5/16
161.3
2-5/16
161.3
2-5/16
1 - Brass, Chrome, White Polyester
2 - Brass, Chrome, White Polyester
Footnotes
QUICK RESPONSE
EXTRA-LARGE ORIFICE
UPRIGHT SPRINKLER
VK531 (STORAGE-DENSITY/AREA)
Listings and Approvals
(Refer also to Design Criteria below.)
mm
cULus
NYC
4,5
58.7
A1
See Footnote 6.
58.7
--
--
58.7
--
--
Approved Finishes
, Black Polyester
, and ENT
7
7
, and Black Polyester
7
Page 4 of 5
3
VdS
LPCB
--
--
A2
A2
A2
A2
7
7
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