HomeMy WebLinkAboutBLD2021-00260-07- DESIGN
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Apr 19 2021
FREEDOM® RESIDENTIAL
CONCEALED PENDENT
SPRINKLER VK494 (K4.9)
TECHNICAL DATA
The Viking Corporation, 210 N Industrial Park Drive, Hastings MI 49058
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
Page 1 of 5
Form No. F_012116 18.04.12 Rev 18.1
1. DESCRIPTION
Viking Freedom® Residential Concealed Pendent Sprinkler VK494 is a small
thermosensitive, glass-bulb residential sprinkler designed for installation on
concealed pipe systems where the appearance of a smooth ceiling is desired. The
orifice design, with a K-Factor of 4.9 (70.6 metric*), allows the sprinkler’s efficient
use of available water supplies for the hydraulically designed fire-protection
system. The fast response glass bulb operating element and special deflector
characteristics meet the challenges of residential sprinkler standards.
The sprinkler is pre-assembled with a threaded adapter for installation with a
low-profile small-diameter cover assembly installed flush to the ceiling. The two-
piece design allows installation and testing of the sprinkler prior to installation
of the cover plate. The “push-on”, “thread-off” design of the concealed cover
plate assembly allows easy installation of the cover plate after the system has
been tested and the ceiling finish has been applied, while also providing up to
1/2” (13 mm) of vertical adjustment. The cover assembly can be removed
and reinstalled, allowing temporary removal of ceiling panels without taking
the sprinkler system out of service or removing the sprinkler. The Electroless
Nickel PTFE (ENT) coating has been investigated for installation in corrosive
atmospheres and is C-UL-US-EU Listed as corrosion resistant as indicated in the
Approval Charts. The ENT finish is only available for the sprinkler assembly, the
cover plate is not plated.
2. LISTINGS AND APPROVALS
UL Listed (C-UL-US-EU): Category VKKW
Refer to the Approval Charts and Design Criteria on for C-UL-US-EU Listing
requirements that must be followed.
3. TECHNICAL DATA
Minimum Operating Pressure: Refer to the Approval Chart.
Maximum Working Pressure: 175 psi (12 bar). Factory tested hydrostatically to
500 psi (34.5 bar).
Thread size: 1/2” (15 mm) NPT
Nominal K-Factor: 4.9 U.S. (70.6 metric*)
Glass-bulb fluid temperature rated to -65 °F (-55 °C)
* Metric K-factor measurement shown is in Bar. When pressure is measured in kPa, divide the
metric K-factor shown by 10.0.
Material Standards:
Sprinkler Body: Brass UNS-C84400 or QM Brass
Deflector: Phosphor Bronze UNS-C51000
Deflector Pins: Stainless Steel UNS-S30200
Button: Brass UNS-C36000
Pip Cap and Insert Assembly: Copper UNS-C11000 and SS UNS-S30400
Compression Screw: 18-8 Stainless Steel
Yoke: UNS-S43000 Stainless Steel or Phosphor Bronze UNS-C51000
Belleville Spring Sealing Assembly: Nickel Alloy, coated on both sides with PTFE Tape
Cover Adapter: Cold Rolled Steel UNS-G10080, Finish: Clear Chromate over Zinc Plating
Shipping Cap: Polyethylene
Cover Plate Materials:
Cover Plate Assembly: Copper UNS-C11000 and Brass UNS-C26800 or Stainless Steel UNS-S30400
Spring: Beryllium Nickel
Solder: Eutectic
Ordering Information: (Also refer to the current Viking price list.)
Viking Freedom® Residential Concealed Pendent Sprinkler VK494 and Cover Plate Assembly must be ordered separately:
Sprinkler: Order Sprinkler VK494 by first adding the appropriate suffix for the sprinkler finish and then the appropriate suffix for the
temperature rating to the sprinkler base part number.
Finish Suffix: Brass = A and ENT = JN
Temperature Suffix: 155 °F (68 °C) = B, 200 °F (93 °C) = E
For example, sprinkler VK494 with a Brass finish and a 200 °F (93 °C) temperature rating = Part No. 20759AE.
Standard Cover Plates: Base Part No. 13504 (2-3/4” diameter), Base Part No. 13642 (3-5/16” diameter),
or Base Part No. 15394 (square cover plate, 3-5/16”)
Stainless Steel Cover Plates (not availble with any finish or paint): Base Part No. 21876 (2-3/4” diameter) or Base Part No.
21875 (3-5/16” diameter).
Replaces Form No. F_012116 Rev 17.2
(added stainless steel cover plates)
Apr 19 2021
FREEDOM® RESIDENTIAL
CONCEALED PENDENT
SPRINKLER VK494 (K4.9)
TECHNICAL DATA
The Viking Corporation, 210 N Industrial Park Drive, Hastings MI 49058
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
Page 2 of 5
Form No. F_012116 18.04.12 Rev 18.1
Specify finish and temperature rating of the cover plate assembly by adding the appropriate suffixes for the finish and the cover
temperature rating to the base part number:
Finish Suffix: Polished Chrome = F, Brushed Chrome = F-/B, Bright Brass = B, Antique Brass = B-/A, Brushed Brass = B-/B, Brushed
Copper = E-/B, Painted White = M-/W, Painted Ivory = M-/I, Painted Black = M-/B
Temperature Suffix: 135 °F/57 °C = A
For example, cover 13504 with a Polished Chrome finish and a 135 °F/57 °C temperature rating = 13504FA.
Available Finishes And Temperature Ratings: Refer to Table 1.
Accessories: (Also refer to the Viking website.)
Sprinkler Wrenches**:
A. Heavy Duty Part No. 14047W/B** (available since 2006), or
B. Head Cabinet Wrench Part No. 14031*** (available since 2006)
C. Optional Concealed Cover Plate Installer Tool Part No. 14412 (available since 2007)
D. Optional Large Concealed Cover Plate Installer Tool Part No. 14867 (available since 2007)
**Requires a ½” ratchet (not available from Viking). ***Also optional for removal of the protective cap. Ideal for sprinkler cabinets.
Sprinkler Cabinet: Part No. 01731A (available since 1971)
4. INSTALLATION
Refer to appropriate NFPA Installation Standards.
5. OPERATION
During fire conditions, when the temperature around the sprinkler approaches its operating temperature, the cover plate detaches,
releasing the deflector. Continued heating of the exposed sprinkler causes the heat-sensitive liquid in the glass bulb to expand,
causing the glass to shatter, releasing the yoke and pip cap and sealing spring assembly. . Water flowing through the sprinkler
orifice strikes the deflector, forming a uniform spray pattern over a specific area of coverage determined by the water supply pres-
sure at the sprinkler to extinguish or control the fire.
6. INSPECTIONS, TESTS AND MAINTENANCE
Refer to NFPA 25 for Inspection, Testing and Maintenance requirements.
7. AVAILABILITY
Viking Sprinkler Model VK494 is available through a network of domestic and international distributors. See The Viking Corporation
web site for the closest distributor or contact The Viking Corporation.
8. GUARANTEE
For details of warranty, refer to Viking’s current list price schedule or contact Viking directly.
TABLE 1: AVAILABLE SPRINKLER TEMPERATURE RATINGS AND FINISHES
Sprinkler
Temperature
Classification
Sprinkler
Nominal
Temperature
Rating1
Maximum
Ambient
Ceiling
Temperature2
Temperature Rating
of the Cover
Assembly
(Required)3
Cover
Plate
Base Part
Number4
Large
Cover Plate
Base Part
Number4
Square
Cover Plate
Base Part
Number4
Bulb Color
Ordinary 155 °F (68 °C) 100 °F (38 °C) 135 °F (57 °C)
13504 or
218766
13642 or
218756 15394 Red
Intermediate 200 °F (93 °C) 150 °F (65 °C) 135 °F (57 °C)
13504 or
218766
13642 or
218756 15394 Green
Sprinkler Finishes: Brass and ENT
Cover Plate Finishes6: Polished Chrome, Brushed Chrome, Bright Brass, Antique Brass, Brushed Brass, Brushed Copper, Painted
White, Painted Ivory, or Painted Black
Corrosion Resistant Coatings5: ENT
Footnotes
1.The sprinkler temperature rating is stamped on the deflector.
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
Jurisdiction. Refer to specific installation standards.
3.Maximum ambient temperature for cover assembly is 100 °F (38 °C).
4.Part number shown is the base part number. For complete part number, refer to current Viking price list schedule.
5.The corrosion resistant coatings have passed the standard corrosion test required by the approving agencies indicated in the Approval Charts. These tests cannot and
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. For ENT coated sprinklers, the Belleville
spring is exposed.
6.Stainless Steel versions are not available with any finishes or paint.
Apr 19 2021
FREEDOM® RESIDENTIAL
CONCEALED PENDENT
SPRINKLER VK494 (K4.9)
TECHNICAL DATA
The Viking Corporation, 210 N Industrial Park Drive, Hastings MI 49058
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
Page 3 of 5
Form No. F_012116 18.04.12 Rev 18.1
Approval Chart
Viking VK494, 4.9 K-Factor Residential Concealed 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
current editions of NFPA 13, 13R or 13D
Sprinkler Base
Part Number 1 SIN NPT Thread Size Nominal K-Factor Maximum Water Wor-
king PressureInches mm U.S. metric
2
20759 VK494 1/2 15 4.9 70.6 175 psi (12 bar)
Max. Coverage
Area 6
W X L
Ft. X Ft.
(m X m)
Flow
GPM
(LPM)
Pressure
PSI (bar)
Ceiling
Installation
Type
Listings and
Approvals3,5
Minimum
Spacing
Ft.
(m)155 °F (68 °C), 200 °F (93 °C) Temperature
Rated Sprinklers
4
12 X 12
(3.7 X 3.7)
13
(49.2)
7.0
(0.48)
Refer to Figure 2
Concealed with
Cover Plate
Assembly.
See Footnote 8.
See Footnotes 7,9, 10,
& 11 8
(2.4)
14 X 14
(4.3 X 4.3)
13
(49.2)
7.0
(0.48)
16 X 16
(4.9 X 4.9)
13
(49.2)
7.0
(0.48)
18 X 18
(5.5 X 5.5)
17
(64.4)
12.0
(0.83)
20 X 20
(6.1 X 6.1)
20
(75.7)
16.7
(1.15)
Footnotes
1.Part number shown is the base part number. For complete part number, refer to current Viking price schedule.
2.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.
3.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.
4.Listed by Underwriter’s Laboratories, Inc. for use in the U.S., Canada, and European Union.
5.Meets New York City requirements, effective July 1, 2008.
6.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. The distance from
sprinklers to walls shall not exceed one-half the sprinkler spacing indicated for the minimum “Flow” and “Pressure” used.
7.Cover Temperature Rating is 135 °F (57 °C). Cover Part No. 135041, 136421 (large diameter), or 153941 (square cover plate).
8.Other paint colors are available on request with the same listings as the standard finish colors. Stainless Steel cover plates are not available with any finishes or paint.
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 3.
9.Accepted Cover Plate Finishes are: Polished Chrome, Brushed Chrome, Bright Brass, Antique Brass, Brushed Brass, Brushed Copper, Painted White, Painted Ivory, or
Painted Black 8.
10. C-UL-US-EU Listed as corrosion resistant - Electroless Nickel PTFE (ENT)
11. Stainless Steel Cover plate temperature rating is 135 °F (57 °C). Stainless Steel Cover Part Numbers: 21876 1 and 218751 (large diameter).
Apr 19 2021
FREEDOM® RESIDENTIAL
CONCEALED PENDENT
SPRINKLER VK494 (K4.9)
TECHNICAL DATA
The Viking Corporation, 210 N Industrial Park Drive, Hastings MI 49058
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
Page 4 of 5
Form No. F_012116 18.04.12 Rev 18.1
DESIGN CRITERIA
(Also refer to the Approval Chart on page 3.)
UL Listing Requirements (C-UL-US-EU):
When using Viking Residential Concealed Pendent Sprinkler VK494 for systems designed to NFPA 13D or NFPA 13R, apply the listed areas of cover-
age and minimum water supply requirements shown in the Approval Chart.
For systems designed to NFPA 13: The number of design sprinklers is to be the four contiguous most hydraulically demanding sprinklers. The minimum
required discharge from each of the four sprinklers is to be the greater of the following:
The flow rates given in the Approval Chart for NFPA 13D and NFPA 13R applications for each listed area of coverage, or
Calculated based on a minimum discharge of 0.1 gpm/sq. ft. over the “design area” in accordance with sections 8.5.2.1 or 8.6.2.1.2 of NFPA 13.
Minimum distance between residential sprinklers: 8 ft. (2.4 m).
NOTE: Concealed sprinklers must be installed in neutral or negative pressure plenums only.
IMPORTANT: Always refer to Bulletin Form No. F_080415 - Best Practices for Residential Sprinkler Handling and Installation.
Also refer to Form No. F_080614 for general care, installation, and maintenance information. Viking sprinklers are to be in-
stalled in accordance with the latest edition of Viking technical data, the appropriate standards of NFPA and any other similar
Authorities Having Jurisdiction, and also with the provisions of governmental codes, ordinances, and standards, whenever
applicable. Final approval and acceptance of all residential sprinkler installations must be obtained from the Authorities
Having Jurisdiction.
Sprinkler and Adapter Assembly
Protective cap removed
Use wrench 14047W/B**
Step 1:
Carefully slide the
wrench sideways around
Sprinkler Wrench
Part No. 14047W/B**
** A 1/2” ratchet is required (Not available from Viking)
2-1/4” (57 mm)
diameter opening
required in the
ceiling.
Step 2:
Carefully press the wrench upward and
turn slightly to ensure engagement with
Figure 1: Sprinkler Installation and Proper Wrench Usage
NEVER install the sprinkler by applying the installation
wrench across the frame arms. DO NOT overtighten.
Use only the designated sprinkler wrenches, Viking
Part Numbers 14047W/B** or 14031**. A leak tight seal
should be achieved by turning the sprinkler clockwise
Sprinkler
Sprinkler
frame arms
Apr 19 2021
FREEDOM® RESIDENTIAL
CONCEALED PENDENT
SPRINKLER VK494 (K4.9)
TECHNICAL DATA
The Viking Corporation, 210 N Industrial Park Drive, Hastings MI 49058
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
Page 5 of 5
Form No. F_012116 18.04.12 Rev 18.1
Figure 2: Sprinkler Dimensions and Cover Installation
1/2” (15 mm) NPT
2-
1
/
4
”
(5
8
m
m
)
2-9/16” (65 mm)
Maximum 2-1/16” (52 mm)
Minimum
2-3/4” (70 mm) or
3-5/16” (84 mm)NOTE:
to approximately 13/16” (21 mm) below the sprinkler body.
Figure 3: Identification of Custom Paint for Concealed Covers
All custom color painted cover plates will have an
identifying label affixed to the inside of the cover that
indicates the custom color and will have a representative
sample (a paint dot) of the paint on the label.
Figure 4: Square Cover Assembly 15394
3-5/16” (84 mm)
Replaces Form No. F_012116 Rev 17.2
(added stainless steel cover plates)
Apr 19 2021
FREEDOM® RESIDENTIAL
CONCEALED HORIZON-
TAL SIDEWALL SPRINKLER
VK480
TECHNICAL DATA
Form No. F_121609 20.09.14 Rev 20.4
Page 1 of 9
The Viking Corporation, 210 N Industrial Park Drive, Hastings MI 49058
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.
1. DESCRIPTION
Viking Freedom® Residential Concealed Horizontal Sidewall Sprinkler VK480
is a small high-sensitivity solder link and lever residential sprinkler designed for
installation on concealed pipe systems, where the appearance of a smooth wall
is desired. The sprinkler orifice design, with a K-Factor of 4.0 (57.7 metric*),
allows the sprinkler’s efficient use of available water supplies for the hydraulically
designed fire-protection system. The operating element and special deflector
characteristics meet the challenges of residential sprinkler standards. The special
Electroless Nickel PTFE (ENT) coating has been investigated for installation in
corrosive atmospheres and is listed/approved as corrosion resistant as indicated
in the Approval Chart.
The sprinkler is hidden from view by a low profile, small diameter cover plate
installed flush to the wall. The cover plate is available in several decorative
finishes to meet design requirements. The two-piece design allows installation
and testing of the sprinkler prior to installation of the cover plate. After the system
has been tested and wall finish has been applied, the push-on design of the cover
plate assembly allows easy installation of the cover plate with up to 1/4” (6.4 mm)
adjustment. Sprinkler VK480 is provided with a pipe guide to properly locate the
sprinkler and allow the 1/4” adjustment of the cover plate.
2. LISTINGS AND APPROVALS
UL Listed (C-UL-US-EU): Category VKKW (VK480)
LPCB Approved: Certificate 096y/01
Refer to the Approval Chart and Design Criteria for Listing and approval requirements that must be followed.
3. TECHNICAL DATA
Available since 2010.
Minimum Operating Pressure: Refer to the Approval Chart.
Maximum Working Pressure: 175 psi (12 bar). Factory tested hydrostatically to 500 psi (34.5 bar).
Thread size: 1/2” (15 mm) NPT
Nominal K-Factor: 4.0 U.S. (57.7 metric*)
* Metric K-factor measurement shown is in Bar. When pressure is measured in kPa, divide the metric K-factor shown by 10.0.
Available Cover Plate Horizontal Adjustment: 1/4” (6 mm)
Overall Length (Sprinkler Body): 2” (50 mm)
Covered by the following US Patent Numbers: 7,712,218 and 8,960,319
Sprinkler Body: QM Brass and Brass UNS-C84400
Belleville Spring Sealing Assembly: Nickel Alloy, coated on both sides with Tape
Seat: Brass UNS-C31400
Deflector Ring: Brass UNS-C23000
Deflector Pins: Stainless Steel UNS-S30200
Halo: Brass UNS-C31400 or Phosphor Bronze UNS-C51000
Flow Shaper: Phosphor Bronze UNS-C51000
Lever Bar Ring: Brass UNS-C31400 or Brass UNS-C84400
Compression Screw: 18-8 Stainless Steel
Fusible Link Assembly: Nickel Alloy and Eutectic Solder
Fusible Link Levers: Stainless Steel UNS-S31600
Guide Pin: Stainless Steel UNS-S43000
Shipping Cap: Polyethylene
Cover Assembly Materials:
Cover Plate Assembly: Copper UNS-C11000 and Brass UNS-C26800
Spring: Beryllium Nickel
Solder: Eutectic
Replaces Form No. F_121609 Rev 20.3
(revised footnote 7 on approval chart.)
Apr 19 2021
FREEDOM® RESIDENTIAL
CONCEALED HORIZON-
TAL SIDEWALL SPRINKLER
VK480
TECHNICAL DATA
Form No. F_121609 20.09.14 Rev 20.4
Page 2 of 9
The Viking Corporation, 210 N Industrial Park Drive, Hastings MI 49058
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.
4. INSTALLATION
Refer to appropriate NFPA or EN Installation Standards.
5. OPERATION
During fire conditions, when the temperature around the sprinkler approaches its operating temperature, the cover plate detaches.
Continued heating of the exposed sprinkler causes the fusible element to disengage, releasing the sealing assembly. Water flowing
through the sprinkler orifice strikes the flow shaper, forming a uniform spray pattern over a specific area of coverage determined
by the water supply pressure at the sprinkler to extinguish or control the fire.
6. INSPECTIONS, TESTS AND MAINTENANCE
Refer to NFPA 25 for Inspection, Testing and Maintenance requirements.
7. AVAILABILITY
Viking Freedom® Residential Concealed Horizontal Sidewall Sprinkler VK480 is available through a network of domestic and
international distributors. See The Viking Corporation web site for the closest distributor or contact The Viking Corporation.
8. GUARANTEE
For details of warranty, refer to Viking’s current list price schedule or contact Viking directly.
TABLE 1: SPRINKLER ORDERING INFORMATION
(3) Select a cover plate (See Table 2)
Base Part
1
Size 7
NPT
2
16116 1/2 Brass
8 A 165 °F (74 °C) 100 °F (38 °C) C
ENT5,6 JN 205 °F (96 °C) 150 °F (65 °C) E
Accessories
A. Heavy Duty Part Number: 16208W/R3 (available since 2006)
B. Head Cabinet Wrench Part Number: 162673,4 (available since 2006)
C. Optional Concealed Cover Plate Installer Tool Part Number: 14412 (available since 2007)
D. Optional Large Concealed Cover Plate Installer Tool Part No. 14867 (available since 2007)
Holds up to 6 sprinklers: Part number 01731A (available since 1971).
1. Part number shown is the base part number. For complete part number, refer to the current Viking price list schedule.
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
Jurisdiction. Refer to specific installation standards.
3. Requires a 13 mm (½”) ratchet (not available from Viking).
4. Also optional for removal of the protective cap. Ideal for sprinkler cabinets.
5. cULusEU Listed as corrosion resistant.
6. The corrosion resistant coatings have passed the standard corrosion test required by the approving agencies indicated in the Approval Charts. These tests cannot and
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. For ENT coated sprinklers, the Belleville
spring is exposed.
7. The sprinkler temperature rating is stamped on the deflector.
8. LPCB Listed - Brass Only.
Apr 19 2021
FREEDOM® RESIDENTIAL
CONCEALED HORIZON-
TAL SIDEWALL SPRINKLER
VK480
TECHNICAL DATA
Form No. F_121609 20.09.14 Rev 20.4
Page 3 of 9
The Viking Corporation, 210 N Industrial Park Drive, Hastings MI 49058
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.
TABLE 2: COVER PLATE ORDERING INFORMATION
Cover Plate
Base Part
1
Size Style
4
2 3
16207 3-5/16 (84) Round Painted White M-/W cULusEU: 135 °F (57 °C)
LPCB: 139 °F (59 °C)
155 °F (68 °C) 100 °F (38 °C)A200 °F (93 °C) 150 °F (65 °C)
1. Part number shown is the base part number. For complete part number, refer to the current Viking price list schedule.
2. The sprinkler temperature rating is stamped on the deflector.
3. 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
Jurisdiction. Refer to specific installation standards.
4. Where a dash (-) is shown in the Finish suffix designation, insert the desired Temperature Rating suffix. See example above.
Apr 19 2021
FREEDOM® RESIDENTIAL
CONCEALED HORIZON-
TAL SIDEWALL SPRINKLER
VK480
TECHNICAL DATA
Form No. F_121609 20.09.14 Rev 20.4
Page 4 of 9
The Viking Corporation, 210 N Industrial Park Drive, Hastings MI 49058
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.
1
2 SIN mm U.S. metric
3
16116A VK480 1/2 15 4.0 57.7 175 psi (12 bar)
16116JN10 VK480 1/2 15 4.0 57.7 175 psi (12 bar)
Area 7
Ft.
(m)
(165 °F/74 °C)(205 °F/96 °C)
Type
4
Ft.
(m)
7
GPM
7
PSI
(bar)
7
GPM
7
PSI
(bar)
5 NYC
12 X 12 (3.7 X 3.7) 12 (3.7) 11 (41.7) 7.6 (0.52) 13 (49.3) 10.6 (0.73)
4-3/8 to 6-3/8
inches
(111 to 162mm)Concealed
with Cover
Plate As-
sembly
See Footnote 9
and 10
See
Footnote 6
8
(2.4)
14 X 14 (4.3 X 4.3) 14 (4.3) 13 (49.3) 10.6 (0.73) 13 (49.3) 10.6 (0.73)
16 X 16 (4.9 X 4.9) 16 (4.9) 16 (60.6) 16 (1.10) 16 (60.6) 16 (1.10)
16 X 18 (4.9 X 5.5) 16 (4.9) 17 (64.4) 18.1 (1.25) 18 (68.1) 20.3 (1.40)
12 X 12 (3.7 X 3.7) 12 (3.7) 12 (45.5) 9 (0.62) 13 (49.3) 10.6 (0.73)
6-3/8 to 12-3/8
inches
(162 to 314mm)
14 X 14 (4.3 X 4.3) 14 (4.3) 14 (53.0) 12.3 (0.84) 14 (53.0) 12.3 (0.84)
16 X 16 (4.9 X 4.9) 16 (4.9) 16 (60.6) 16 (1.10) 16 (60.6) 16 (1.10)
16 X 18 (4.9 X 5.5) 16 (4.9) 18 (68.1) 20.3 (1.40) 18 (68.1) 20.3 (1.40)
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.
5 Sprinkler VK480 is Listed by Underwriter’s Laboratories, Inc. for use in the U.S., Canada, and European Union.
6 Meets New York City requirements, effective July 1, 2008.
7 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.
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: 135 °F (57 °C). Cover Part No. 162072.
10 Accepted Cover Plate Finishes are: White Polyester7.
11 cULus Listed as corrosion resistant.
Apr 19 2021
FREEDOM® RESIDENTIAL
CONCEALED HORIZON-
TAL SIDEWALL SPRINKLER
VK480
TECHNICAL DATA
Form No. F_121609 20.09.14 Rev 20.4
Page 5 of 9
The Viking Corporation, 210 N Industrial Park Drive, Hastings MI 49058
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.
DESIGN CRITERIA
(Also refer to the Approval Chart on page 3.)
:
When using Viking Residential Concealed Horizontal Sidewall Sprinkler VK480 for systems designed to NFPA 13D or NFPA 13R, apply the listed areas
of coverage and minimum water supply requirements shown in the Approval Chart above.
For systems designed to NFPA 13: The number of design sprinklers is to be the four contiguous most hydraulically demanding sprinklers. The minimum
required discharge from each of the four sprinklers is to be the greater of the following:
• The flow rates given in the Approval Chart above for NFPA 13D and NFPA 13R applications for each listed area of coverage, or
• Calculated based on a minimum discharge of 0.1 gpm/sq. ft. over the “design area” in accordance with sections 8.5.2.1 or 8.6.2.1.2 of NFPA 13.
• Orient the top of the sprinkler
element parallel with the ceiling as shown in Figure 3.
• Minimum distance between residential sprinklers: 8 ft. (2.4 m).
NOTE:
All custom painted cover plates will have an identifying label affixed to
the inside of the cover that indicates the custom color and will have a
representative sample (a paint dot) of the paint on the label.
VK480
Apr 19 2021
FREEDOM® RESIDENTIAL
CONCEALED HORIZON-
TAL SIDEWALL SPRINKLER
VK480
TECHNICAL DATA
Form No. F_121609 20.09.14 Rev 20.4
Page 6 of 9
The Viking Corporation, 210 N Industrial Park Drive, Hastings MI 49058
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.
1
2
Base Part
3
SIN (metric)
20759 VK480 ½” / 15mm 70.6 12.0 2.4
area4
(mm)
criteria5
6,7 6,7 6,7
(bar)
(bar)
(bar)
(bar)
3.7 x 3.7
110 to 162
41.7 0.5 41.7 0.5 41.7 0.5 54.8 0.9
4.3 x 4.3 49.3 0.7 49.3 0.7 51.8 0.8 74.0 1.6
4.9 x 4.9 60.6 1.1 60.6 1.1 67.2 1.3 96.0 2.7
4.9 x 5.5 64.4 1.2 64.4 1.2 67.2 1.3 96.0 2.7
3.7 x 3.7
162 to 314
45.5 0.6 45.5 0.6 45.5 0.6 54.8 0.9
4.3 x 4.3 53 0.8 53.0 0.8 53.0 0.8 74.0 1.6
4.9 x 4.9 60.6 1.1 60.6 1.1 67.2 1.3 96.0 2.7
4.9 x 5.5 68.1 1.4 68.1 1.4 68.1 1.4 96.0 2.7
1. Not for North American markets. The VK480 is a vented style concealed sprinkler. Do not install embedded in concrete ceilings.
2. Accepted Cover Plate Finishes are: Polished Chrome, Brushed Chrome, Bright Brass, Antique Brass, Brushed Brass, Brushed Copper, Painted White, Painted Ivory, or
Painted Black. Other paint colours are available on request with the same listings as the standard finish colours. Listings and approvals apply for any paint manufacturer.
Contact Viking for additional information. Custom colours are indicated on a label inside the cover assembly. Refer to Figure 1.
3. Part number shown is the base part number. For complete part number, contact Viking.
4. 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. The distance from
sprinklers to walls shall not exceed one-half the sprinkler spacing indicated for the minimum “Flow” and “Pressure” used. For detailed guidance on obstructions please
refer to the relevant EN16925, NFPA13, 13R or 13D design and installation standards. The minimum flow for each sprinkler shall be selected such that both the actual
width and length dimensions are equal to or less than those given in the table above.
5. Minimum LPCB approved flow and pressure for each room size.
6. Flow and pressure required to achieve nominal density, or minimum approved flow and pressure if higher.
7. The nominal density is that used for design purposes and required by the installation standard. As a proportion of the flow is required to wet the walls the actual density
on the floor will be lower than nominal. Product testing and approvals are carried out at the minimum values given above and so design should be based on the values
given above and does not need to be adjusted to take account of wall-wetting.
Apr 19 2021
FREEDOM® RESIDENTIAL
CONCEALED HORIZON-
TAL SIDEWALL SPRINKLER
VK480
TECHNICAL DATA
Form No. F_121609 20.09.14 Rev 20.4
Page 7 of 9
The Viking Corporation, 210 N Industrial Park Drive, Hastings MI 49058
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.
CEILING
(15 mm)
NPT protective cap
(56 mm)
(49 mm)
(84 mm)
(6 mm)
VK480
Apr 19 2021
FREEDOM® RESIDENTIAL
CONCEALED HORIZON-
TAL SIDEWALL SPRINKLER
VK480
TECHNICAL DATA
Form No. F_121609 20.09.14 Rev 20.4
Page 8 of 9
The Viking Corporation, 210 N Industrial Park Drive, Hastings MI 49058
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.
VK480
(70 mm)
(25 mm)
Apr 19 2021
FREEDOM® RESIDENTIAL
CONCEALED HORIZON-
TAL SIDEWALL SPRINKLER
VK480
TECHNICAL DATA
Form No. F_121609 20.09.14 Rev 20.4
Page 9 of 9
The Viking Corporation, 210 N Industrial Park Drive, Hastings MI 49058
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.
(56 mm)
(NFPA 13, NFPA 13R, & NFPA 13D
(NFPA 13R & NFPA 13D
Replaces Form No. F_121609 Rev 20.2
(Expanded verbiage on footnotes in approval chart.)
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