ESFR PENDENT SPRINKLER
VK503 (K16.8)
TECHNICAL DATA
Page 5 of 6
Form No. F_120106 18.10.11 Rev 18.2
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)
ESFR Pendent Sprinkler VK503
Maximum 175 PSI (12 bar) WWP
Base Part
Number
1
SIN
NPT Thread Size
Nominal
K-Factor
Overall Length
Listings and Approvals
3,4
(Refer also to Design Criteria on page 4.)
Inches
NPT
mm
BSPT
U.S.
metric
2
Inches
mm
cULus
5
NYC
6
14073
VK503
3/4”
--
16.8
242
2-7/8
73
A1
A1
--
--
14818
VK503
--
20 mm
16.8
242
2-7/8
73
A1
A1
--
--
19856
VK503
--
20 mm
16.8
242
2-7/8
73
--
--
--
B1
20372
VK503
--
20 mm
16.8
242
2-7/8
73
--
--
--
B1
Approved Temperature Ratings
A - 165 °F (74 °C) and 205 °F (96 °C)
B - 165 °F (74 °C)
Approved Finish
1 - Brass
Footnotes
1
Base part number shown. For complete part number, refer to the price list.
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 chart shows listings and approvals available at the time of printing. Other approvals may be in process.
4
Refer to the latest standards of NFPA 13.
5
Listed by Underwriters Laboratories Inc. for use in the U.S. and Canada.
6
Accepted for use, City of New York Department of Buildings, MEA Number 89-92-E, Vol. 41.
Approval Chart 2 (FM)
ESFR Pendent Sprinkler VK503
Maximum 175 PSI (12 bar) WWP
Base Part
Number
1
SIN
Thread Size
Nominal K-Factor
Overall Length
FM Approvals
3,4
(Refer also to Design Criteria below.)
Inches
NPT
mm
BSPT
U.S.
metric
2
Inches
mm
14073
VK503
3/4”
--
16.8
242
2-7/8
73
A1
14818
VK503
--
20 mm
16.8
242
2-7/8
73
A1
Approved Temperature Ratings
A - 165 °F (74 °C) and 205 °F (96 °C)
Approved Finish
1 - Brass
Footnotes
1
Base part number shown. For complete part number, refer to the price list.
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 chart shows the FM Approvals available at the time of printing. Other approvals may be in process.
4
FM Approved as a quick response pendent
Non-Storage
sprinkler and also FM Approved as a quick response pendent
Storage
sprinkler. Refer to
Design Criteria below.
