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: techsvcs@vikingcorp.com
Visit the Viking website for the latest edition of this technical data page www.vikinggroupinc.com
Page 2 of 8
Form No. F_071221 Rev 001 12.10.2021
Ordering Instructions (Refer to Table 1 below):
1. Choose a sprinkler size (brass is the only available finish) to determine the base part number then,
2. add the suffix for the desired temperature rating.
NOTE:
Each sprinkler assembly includes 2 insulating boots.
EXAMPLE
:
24853AC = VK512 at 251/2
" with a 165 °F (74 °C) temperature rating. This sprinkler is to be installed into an area with a maximum
ambient temperature of 100 °F (38 °C) meaning if the area will experience temperatures above the maximum ambient rating, you
shall use a higher temperature-rated sprinkler
TABLE 1: BASE PART NUMNBER
1. Available Part Numbers and Styles
Base Part
Number
Nominal
Length (L)
Connection
Style
Connection
Size
24850A
191/2" (495 mm)
Grooved
11/2"
24853A
251/2" (648 mm)
24856A
311/2" (800 mm)
24859A
371/2" (950 mm)
L
TABLE 2: TEMPERATURE RATINGS
2. Available Temperature Ratings
Suffix Temperature
Classification
Nominal
Temperature
Rating
Maximum
Ambient
Ceiling
Temperature
1
Frame Paint
Color
C
Ordinary
165 °F (74 °C)
100 °F (38 °C)
None
E
Intermediate 205 °F (96 °C)
150 °F (65 °C)
White
Figure 1: Sprinkler Dimensions and Markings
Sprinkler
Identification Number
Approval Marking
Nominal
K-factor
Sprinkler Type
(orientation)
Sprinkler Type
(application)
Nominal Temperature
Rating
