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Telephone: 269-945-9501 Technical Services: 877-384-5464 Fax: 269-818-1680 Email: techsvcs@vikingcorp.com
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Wrench Flat
Figure 1: Sprinkler Wrench
Base Part
SIN
Thread Size
Number
1
12080
VK510
12200
VK510 25 mm BSPT
20373
VK510
8
Approved Temperature Ratings
A - 165 °F (74 °C) and 205 °F (96 °C)
Base part number shown. For complete part number, refer to the price list.
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 10.0.
2.
This chart shows listings and approvals available at the time of printing. Other approvals may be in process.
3.
Refer to the latest standards of NFPA 13, FM Global Loss Prevention Data Sheets, LPCB Loss Prevention Standards, and the latest VdS standards.
4.
Listed by Underwriters Laboratories Inc. for use in the U.S. and Canada as a Specific Application ESFR Sprinkler (refer to the deflector position requirements).
5.
FM Approved as a quick response pendent Storage sprinkler. Refer toTables 3 & 5.
6.
Meets New York City requirements, effective July 1, 2008.
7.
Approved according to China GB Standard.
8.
Form No. F_121022
Rev 01
TECHNICAL BULLETIN
The Viking Corporation, 210 N Industrial Park Drive, Hastings MI 49058
Protective Sprinkler
Cap
Use Side B Only
ESFR Pendent Sprinkler VK510
Maximum 175 PSI (12 bar) WWP
Nominal K-Factor
U.S.
metric
1" NPT
25.2
363
25.2
363
1" NPT
25.2
363
B - 165 °F (74 °C)
December 2022
Dimensions are
Approval Chart
Overall Length
Inches
mm
cULus
2
3-3/16
81
3-3/16
81
3-3/16
81
Footnotes
ESFR PENDENT SPRINKLER
UL: SPECIFIC APPLICATION ESFR SPRINKLER
FM: STORAGE SPRINKLER
NFPA: SPECIAL SPRINKLER
VK510 (K25.2)
1-9/16"
(40 mm)
3-3/16"
(81 mm)
1-5/8"
(42 mm)
approximate.
Figure 2: Sprinkler Dimensions
Listings and Approvals
(Refer also to Tables 3 and 4.)
NYC
VDS
5
A1
A1
See Footnote7.
A1
A1
See Footnote 7.
B1
--
--
Approved Finish
1 - Brass
Page 5 of 7
1-3/4"
(45 mm)
3,4,6
China
LPCB
FM
6
Approval
A1
A1
--
A1
A1
--
--
B1
B1
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