ESFR DRY PENDENT SPRINKLER
VK512 K25.2 (GROOVED)
TECHNICAL DATA
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
Page 7 of 8
Form No. F_071221 Rev 001 12.10.2021
Listing and Approval Specifications
ESFR Dry Pendent Sprinkler VK512
Maximum 175 PSI (12 bar) WWP
Base Part
Number
1
Nominal Length
SIN
Connection Size
Nominal K-Factor
Approval Specification
3
U.S.
metric
2
FM
24850A
191/2" (495 mm)
VK512
11/2"
25.2
363
A1
24853A
251/2" (648 mm)
24856A
311/2" (800 mm)
24859A
371/2" (950 mm)
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 by 10.0.
3
This chart shows listings and approvals available at the time of printing. Other approvals may be in process.
IMPORTANT: Refer to Bulletin Form No. F_091699 - Care and Handling of Sprinklers. Also refer to Table 2.
TABLE 4
COMMODITY SELECTION AND DESIGN CRITERIA OVERVIEW FOR MODEL VK512 ESFR PENDENT SPRINKLERS
Storage Type
NFPA
FM
Sprinkler Type
ESFR
Storage
Response Type
ESFR
QR
System Type
Wet Pipe system only
Wet Pipe system only
Temperature Rating(s) ºF (ºC)
165 ºF (74 ºC) and 205 (96 ºC)
165 ºF (74 ºC) and 205 (96 ºC)
Open Frame Single, Double, Multiple-
Row, or Portable Rack Storage of Class I-IV
and Group A or B Plastics
Refer to NFPA 13.
Refer to FM 2-0 and 8-9.
Solid Pile or Palletized Storage of Class I-IV and
Group A or B Plastics
Refer to NFPA 13.
Refer to FM 2-0 and 8-9.
Idle Pallet Storage
Refer to NFPA 13.
Refer to FM 2-0, 8-9, and 8-24.
Rubber Tire Storage
Refer to NFPA 13.
Refer to FM 2-0 and 8-3.
Rolled Paper Storage (Refer to the standard.)
Refer to NFPA 13.
Refer to FM 8-21.
Flammable Liquid Storage (Refer to the standard.)
Refer to NFPA 30.
Refer to FM 7-29
Aerosol Storage (Refer to the standard.)
Refer to NFPA 30B
Refer to FM 7-31
Automotive Components in Portable Racks
(Control mode only, refer to the standard.)
Refer to NFPA 13.
N/A
Minimum exposed barrel length
Refer to NFPA 13.
Refer to FM 2-0