Viking VK426 Technical Data Manual page 2

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Sprinkler
Style Base Part
Number
QR Pendent 19663
QR Pendent 20110
QR or SR HSW 22885
6
QR or SR HSW 22908
6
QR EC Pendent 19876
QR EC Pendent 20111
QR EC HSW 22884
QR EC HSW 22907
Examples
Sprinkler: 19663MC/RAL9006 = VK426 Quick Response Pendent with Painted gray Finish and 165 °F (74 °C) Nominal tempera-
ture 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.
Escutcheon: 23196M/RAL9006 = 3" Diameter Escutcheon with Painted gray finish.
Accessories
Sprinkler Wrench (see Figure 1): Socket Wrench: Part No. 22847MB
Retaining Flange (see Figure 1): Part Numer 10599 (includes 1/8" allen head set screw
Sprinkler Cabinet: Holds Up to 6 sprinklers: Part number 01731A
Footnotes
Where a dash (-) is shown in the Finish suffix designation, insert the desired Temperature Rating suffix. See example above.
1.
Requires a 1/2" ratchet which is not available from Viking.
2.
Based on NFPA 13, NFPA 13R, and NFPA 13D. Other limits may apply, depending on fire loading, sprinkler location, and other requirements of the Authority Having
3.
Jurisdiction. Refer to specific installation standards.
The escutcheons are available with the same finishes as the sprinkler.
4.
Requires a 1/8" allen wrench which is not available from Viking.
5.
The VK427 is FM Approved as Standard Response. Refer the Approval Charts and design criteria for further details.
6.
Sprinkler Wrench
Figure 1: Sprinkler Accessories
Form No. F_032319 Rev 02
© 2023 Viking Group Inc. All rights reserved
TECHNICAL DATA
The Viking Corporation, 210 N Industrial Park Drive, Hastings MI 49058
TABLE 1: ORDERING INFORMATION
Choose a sprinkler style and base part number then,
(1) add the suffix for the desired Finish
(2) add the suffix for the desired Temperature Rating.
(3) select an escutcheon plate and finish
Size
SIN
NPT BSPT
Inch mm
VK426 1/2 --
VK426 -- 15
VK427 1/2 --
VK427 -- 15
VK650 1/2 --
VK650 -- 15
VK651 1/2 --
VK651 -- 15
Retaining Flange
Hex Screw
January 2023
INSTRUCTIONS:
1: Available Finishes
Description Suffix
Chrome F
Painted white M-/W
Painted gray M-/RAL9006
NOTE: The escutcheons


are available with the same
finishes as the sprinklers.
2
Nominal Pipe
7/16" (11mm)
1/8"
Figure 2: Sprinkler Dimensions (Pendent and HSW)
INSTITUTIONAL SPRINKLERS K5.6
.
4
2: Available Temperature Ratings
Max. Ambient
Nominal
1
Rating
Temperature
165 °F (74 °C) 100 °F (38 °C)
205 °F (96 °C) 150 °F (65 °C)
3: Escutcheons
Description Base Part Number
3" (75 mm)
4" (100 mm)
)
5
Engagement
1-3/4" (45 mm)
1/4" (6 mm)
Page 2 of 10
Ceiling Suffix
3
C
E
4
23196
23197
3" (75 mm)
or
4" (100 mm)