Viking VK512 - Page 2

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:
" 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

Grooved 
24853A

24856A

24859A

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