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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.
Viking VK480, 4.0 K-Factor Residential Concealed HSW Sprinkler
For systems designed to NFPA 13D or NFPA 13R. For systems designed to NFPA 13, refer to the design criteria on page 4.
Sprinkler Base
Part Number
2
16116A
12
16116JN
10,11
Max. Coverage
Max.
Area
7
Spacing
Width X Length
Ft.
Ft. X Ft.
(m)
(m X m)
12 X 12 (3.7 X 3.7)
12 (3.7)
14 X 14 (4.3 X 4.3)
14 (4.3) 13 (49.3) 10.6 (0.73) 13 (49.3)
16 X 16 (4.9 X 4.9)
16 (4.9) 16 (60.6)
16 X 18 (4.9 X 5.5)
16 (4.9) 17 (64.4) 18.1 (1.25) 18 (68.1)
12 X 12 (3.7 X 3.7)
12 (3.7) 12 (45.5)
14 X 14 (4.3 X 4.3)
14 (4.3) 14 (53.0) 12.3 (0.84) 14 (53.0)
16 X 16 (4.9 X 4.9)
16 (4.9) 16 (60.6)
16 X 18 (4.9 X 5.5)
16 (4.9) 18 (68.1) 20.3 (1.40) 18 (68.1)
1
For North American Markets only.
2
For complete part number, also refer to current Viking price list schedule.
3
Metric K-factor measurement shown is when pressure is measured in Bar. When pressure is measured in kPa, divide the metric K-factor shown by 10.0.
4
This chart shows the listings and approvals available at the time of printing. Other approvals may be in process. Check with the manufacturer for
any additional approvals. Refer also to Design Criteria listed below.
Sprinkler VK480 is Listed by Underwriter's Laboratories, Inc. for use in the U.S., Canada, and European Union.
5
6
Meets New York City requirements, effective July 1, 2008.
For areas of coverage smaller than shown, use the "Flow" and "Pressure" for the next larger area listed. Flows and pressures listed are per sprinkler.
7
The distance from sprinklers to wall shall not exceed one half of the allowable maximum distance between sprinklers.
8
Other paint colors are available on request with the same listings as the standard finish colors. Listings and approvals apply for any paint
manufacturer. Contact Viking for additional information. Custom colors are indicated on a label inside the cover assembly. Refer to Figure 1.
9
Cover Temperature Rating is UL: 139 °F (59 °C). Cover Part No. 16207
10
Accepted Cover Plate Finishes are: White Polyester
11
cULus Listed as corrosion resistant.
Form No. F_121609
Rev 01
The Viking Corporation, 210 N Industrial Park Drive, Hastings MI 49058
For Ceiling types refer to the most current Edition of NFPA 13, 13R or 13D.
NPT Thread Size
SIN
Inches
VK480
1/2
VK480
1/2
Intermediate Temp
Ordinary Temp Rating
(165 °F/74 °C)
(205 °F/96 °C)
Flow
Pressure
Flow
7
7
GPM
PSI
GPM
(L/min)
(bar)
(L/min)
11 (41.7)
7.6 (0.52)
13 (49.3)
16 (1.10)
16 (60.6)
9 (0.62)
13 (49.3)
16 (1.10)
16 (60.6)
.
8
September 7, 2022
TECHNICAL DATA
Approval Chart
1
mm
15
15
Rating
Centerline of
Sprinkler to
Pressure
7
7
Ceiling
PSI
(bar)
10.6 (0.73)
4-3/8 to 6-3/8
10.6 (0.73)
inches
16 (1.10)
(111 to 162mm)
20.3 (1.40)
10.6 (0.73)
6-3/8 to 12-3/8
12.3 (0.84)
inches
16 (1.10)
(162 to 314mm)
20.3 (1.40)
Footnotes
.
2
FREEDOM
RESIDENTIAL
®
CONCEALED HORIZONTAL
SIDEWALL SPRINKLER VK480
(K4.0)
Nominal K-Factor
Maximum Water Working
U.S.
metric
3
4.0
57.7
4.0
57.7
Listings and Approvals
Installation
Type
5
Concealed
with Cover
See Footnote 9
Plate As-
and 10
sembly
Page 4 of 9
Pressure
175 psi (12 bar)
175 psi (12 bar)
4
Minimum
Spacing
Ft.
(m)
NYC
8
See
(2.4)
Footnote 6
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