Technical Data - Viking VK3522 Technical Data Manual

Telephone: 269-945-9501 Technical Services: 877-384-5464 Fax: 269-818-1680 Email: techsvcs@vikingcorp.com
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Size
Sprinkler
Base Part
NPT BSPT
No.
Inch mm
19921 1/2 --
19933 -- 15
Example: 19921MB/W = VK3522 with White Polyester Finish and 155 °F (68 °C) Nominal 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.
Accessories
Sprinkler Wrenches (see Figure 1):
A. Installer Wrench: Part No. 22055 (available since 2017)
B. Cabinet Wrench: Part No. 20901M/B (available since 2017)
C. Recessed Socket Wrench: Part No. 20951M/B
D. Straight Wrench: Part No. 22940MB
Sprinkler Cabinet:
A. Up to 6 sprinklers: Part number 01724A (available since 1971)
B. 6-12 Sprinklers: Part number 01725A (available since 1971)
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.
cULus Listed as corrosion resistant.
4
FM Approved as corrosion resistant.
5
The corrosion resistant coatings have passed the standard corrosion test required by the approving agencies indicated in the Approval Chart. These tests cannot and
6
do not represent all possible corrosive environments. Prior to installation, verify through the end-user that the coatings are compatible with or suitable for the proposed
environment. For automatic sprinklers, the ENT coating is applied to all exposed exterior surfaces, including the waterway.
A B
Figure 1: Sprinkler Wrenches
Form No. F_021416 Rev 22.1

TECHNICAL DATA

The Viking Corporation, 210 N Industrial Park Drive, Hastings MI 49058
TABLE 1: ORDERING INFORMATION
Instructions: Using the sprinkler base part number,
(1) add the suffix for the desired Finish
(2) add the suffix for the desired Temperature Rating.
1: Finishes
Description Suffix
Brass A
Chrome F
White Polyester M-/W
4,6
Black Polyester M-/B
4,6
ENT JN
4,5,6
(available since 2017)
2
C
March 3, 2022
Nominal Rating
1
135 °F (57 °C)
155 °F (68 °C)
175 °F (79 °C)
200 °F (93 °C)
286 °F (141 °C)
Open
D
15 mm BSPT
VK3522 QUICK RESPONSE
PENDENT SPRINKLER (K8.0)
2: Temperature Ratings
Max. Ambient Ceiling
Bulb Color
Temperature
Orange 100 °F (38 °C)
Red 100 °F (38 °C)
Yellow 150 °F (65 °C)
Green 150 °F (65 °C)
Blue 225 °F (107 °C)
--
7/16" (11 mm)
Nominal Pipe
Engagement
1/2" NPT
Figure 2: Sprinkler Dimensions
Page 2 of 6
Suffix
3
A
B
D
E
G
-- Z
1-15/16"
(49 mm)