QUICK RESPONSE
EXTRA-LARGE ORIFICE
UPRIGHT SPRINKLER
VK531 (STORAGE-DENSITY/AREA)
TECHNICAL DATA
Form No. F_120699 18.10.11 Rev 18.2.P65
Page 4 of 5
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
Approval Chart 1 (UL)
Quick Response Extra-Large Orifice Upright Sprinkler VK531
Maximum 175 PSI (12 Bar) WWP
Base Part
Number
1
SIN
Sprinkler
Style
Thread Size
Nominal
K-Factor
Overall Length
Listings and Approvals
3
(Refer also to Design Criteria below.)
NPT
BSP
U.S.
metric
2
Inches
mm
cULus
4,5
NYC
VdS
LPCB
10633
VK531
Upright
3/4”
20 mm
11.2
161.3
2-5/16
58.7
A1
See Footnote 6.
--
--
19304
VK5311
Upright
3/4”
20 mm
11.2
161.3
2-5/16
58.7
--
--
A2
A2
19305
VK5311
Upright
1/2”
15 mm
11.2
161.3
2-5/16
58.7
--
--
A2
A2
Approved Temperature Ratings
A - 155 °F (68 °C), 175 °F (79 °C), 200 °F (93 °C), and 286 °F (141 °C)
Approved Finishes
1 - Brass, Chrome, White Polyester
7
, Black Polyester
7
, and ENT
7
2 - Brass, Chrome, White Polyester
7
, and Black Polyester
7
Footnotes
1
Base part number shown. For complete part number, refer to Viking’s current price schedule.
2
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
10.0.
3
This table shows the listings and approvals available at the time of printing. Other approvals may be in process.
4
Listed by Underwriters Laboratories Inc. for use in the U.S. and Canada.
5
cULus-Listed only for use in wet pipe sprinkler systems (or preaction systems qualifying as wet systems).
6
Meets New York City requirements, effective July 1, 2008.
7
cULus Listed as corrosion-resistant.
DESIGN CRITERIA - UL
(Also refer to Approval Chart 1 above.)
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.
