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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 VK470, 3.0 K-Factor Residential Pendent 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
SIN
Part Number
1
17147
VK470
Ordinary Temp Rating
(155 °F/68 °C)
Max. Coverage
Area
4
Ft.X Ft.
Flow
(m X m)
GPM
(L/min)
12 X 12
8
(3.7 X 3.7)
(30.3)
14 X 14
10
(4.3 X 4.3)
(37.9)
15 X 15
12
(4.6 X 4.6)
(45.4)
16 X 16
13
(4.9 X 4.9)
(49.2)
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 K-
2
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 European Union.
5
Approved Finishes are: Brass, Chrome, White Polyester, and Black Polyester
6
Meets New York City requirements, effective July 1, 2008.
7
Other paint colors are available on request with the same C-UL-US-EU 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-US-EU
9
Listed as corrosion resistant. ENT is available with standard surface-mounted escutcheons or the Micromatic Model E-1 Recessed
Escutcheon.
Form No. F_061011
Rev 01
The Viking Corporation, 210 N Industrial Park Drive, Hastings MI 49058
the current editions of NFPA 13, 13R or 13D
NPT Thread Size
Inches
mm
1/2
15
Intermediate Temp
Rating (175 °F/79 °C)
Pressure
Flow
4
4
PSI
GPM
(bar)
(L/min)
7.11
8
(0.49)
(30.3)
11.11
10
(0.77)
(37.9)
16
12
(1.10)
(45.4)
18.8
13
(1.29)
(49.2)
November 2022
TECHNICAL DATA
Approval Chart
Nominal K-Factor
U.S.
metric
2
3.0
43.2
Deflector
to
Pressure
4
4
Ceiling
PSI
(bar)
7.11
(0.49)
11.11
(0.77)
1-1/8 to 2
inch
16
(1.10)
18.8
(1.29)
Footnotes
FREEDOM
PENDENT SPRINKLER
VK470 (K3.0)
Maximum Water
Working Pressure
175 psi (12 bar)
Listings and Approvals
Installation
Type
5
Standard
surface-
mounted es-
cutcheons,
or recessed
See
with the
Footnotes
Micromatic®
6 and 9
Model
E-1, E-
2, or E-3
Recessed
Escutcheon
.
8
Page 3 of 5
RESIDENTIAL
®
Overall Length
Inches
mm
2-1/4
58
3
Minimum
Spacing
Ft.
(m)
NYC
NSF
See
8
Foot-
--
(2.4)
note 7
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