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Telephone: 269-945-9501 Technical Services: 877-384-5464 Fax: 269-818-1680 Email: techsvcs@vikingcorp.com
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Viking VK484, 4.2 K-Factor Residential Horizontal Sidewall Sprinkler
For systems designed to NFPA 13D or NFPA 13R. For systems designed to NFPA 13, refer to the design criteria. For Ceiling types refer to
Sprinkler Base Part
SIN
Number
1
16240
VK484
Max. Coverage
Max.
Area
4
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)
16 X 16 (4.9 X 4.9)
16 (4.9)
16 X 18 (4.9 X 5.5)
16 (4.9)
16 X 20 (4.9 X 6.1)
16 (4.9)
12 X 12 (3.7 X 3.7)
12 (3.7)
14 X 14 (4.3 X 4.3)
14 (4.3)
16 X 16 (4.9 X 4.9)
16 (4.9)
16 X 18 (4.9 X 5.5)
16 (4.9)
16 X 20 (4.9 X 6.1)
16 (4.9)
Part number shown is the base part number. For complete part number, refer to Viking's current price schedule.
1
Metric K-factor measurement shown is when pressure is measured in Bar. When pressure is measured in kPa, divide the metric
2
K-factor shown by 10.0.
This chart shows the listings and approvals available at the time of printing. Other approvals may be in process. Check with the
3
manufacturer for any additional approvals. Refer also to Design Criteria.
For areas of coverage smaller than shown, use the "Flow" and "Pressure" for the next larger area listed. Flows and pressures listed
4
are per sprinkler.
Listed by Underwriter's Laboratories, Inc. for use in the U.S.,Canada, and the European Union.
5
Meets New York City requirements, effective July 1, 2008.
6
Approved Finishes are: Brass, Chrome, White Polyester, and Black Polyester
7
Other paint colors are available on request with the same cULus listings as the standard finish colors.
8
Approved finish is Electroless Nickel PTFE (ENT). Sprinklers with ENT, White Polyester, and Black Polyester finishes are C-UL-
9
US-EU Listed as corrosion resistant. ENT is available with standard surface-mounted escutcheons or the Model E-1 Recessed
Escutcheon.
Form No. F_050310
Rev 01
TECHNICAL DATA
The Viking Corporation, 210 N Industrial Park Drive, Hastings MI 49058
NFPA 13, 13R or 13D current editions
NPT Thread Size
Nominal K-Factor
Inches
mm
U.S.
1/2
15
Ordinary Temp Rating
Intermediate Temp
(155 °F/68 °C)
Rating (175 °F/79 °C)
Flow
Pressure
Flow
4
4
GPM
PSI
GPM
(L/min)
(bar)
(L/min)
13 (49.2)
9.6 (0.66)
13 (49.2)
14 (53.0)
11.1 (0.77) 15 (56.8)
16 (60.6)
14.5 (1.00) 17 (64.4)
19 (71.9)
20.5 (1.41) 19 (71.9)
22 (83.3)
27.4 (1.89) 22 (83.3)
14 (53.0)
11.1 (0.77) 14 (53.0)
16 (60.6)
14.5 (1.00) 16 (60.6)
18 (68.1)
18.4 (1.27) 18 (68.1)
20 (75.7)
22.7 (1.56) 20 (75.7)
25 (94.6)
35.4 (2.44) 25 (94.6)
November 2022
Approval Chart
Maximum Water Working
metric
2
4.2
57
175 psi (12 bar)
Top of
Deflector
Pressure
4
4
to Ceiling
PSI
(bar)
9.6 (0.66)
12.8 (0.88)
4 to 6
16.4 (1.13)
inches
20.5 (1.41)
27.4 (1.89)
11.1 (0.77)
14.5 (1.00)
6 to 12
18.4 (1.27)
inches
22.7 (1.56)
35.4 (2.44)
Footnotes
8
FREEDOM
®
HORIZONTAL SIDEWALL
SPRINKLER VK484 (K4.2)
Pressure
Inches
3
Listings and Approvals
Installation
Type
C-UL-US-
EU
5
Standard
surface-
mounted
escutcheons
or recessed
See
with the
Footnotes 7
Micromatic®
and 9.
Model E-1,
E-2, E-3, or
G-1 Recessed
Escutcheon
Page 3 of 5
RESIDENTIAL
Overall Length
mm
76
3
Minimum
Spacing
Ft.
(m)
NYC
See
8
Footnote 6
(2.4)
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