TECHNICAL DATA FREEDOM RESIDENTIAL UPRIGHT LEAD FREE

Page 1 of 6
TECHNICAL DATA
FREEDOM® RESIDENTIAL
UPRIGHT LEAD FREE
SPRINKLER
VK4670 (K4.9)
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
1. DESCRIPTION
Viking Freedom® Residential Upright Lead Free* Sprinkler VK4670 is a small, thermosensitive, glass-bulb residential sprinkler available in several different finishes and temperature
ratings to meet varying design requirements. The orifice design, with a K-Factor of 4.9 (70.6
metric†), allows efficient use of available water supplies for the hydraulically designed fireprotection system. The glass bulb operating element and special deflector characteristics
meet the challenges of residential sprinkler standards.
* Lead content complies with the definition of ‘Lead Free’ established in the Reduction of Lead in
Drinking Water Act (S.3874) endorsed by AWWA’s Water Utility Council, and California Assembly Bill
#1953.
2. LISTINGS AND APPROVALS
UL Listed (C-UL-US-EU): Category VKKW
UL Classified to: NSF/ANSI Standard 61, Drinking Water System Components
and NSF 372 (MH48034). Refer to the Approval Chart Design Criteria for C-UL-US-EU Listing requirements that must
be followed.
3. TECHNICAL DATA
Specifications:
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†)
†Metric K-factor measurement shown is in Bar. When pressure is measured in kPa, divide the metric K-factor shown by 10.0.
Glass-bulb fluid temperature rated to -65 °F (-55 °C)
Overall Length: 2-1/4” (58 mm)
Material Standards:
Viking Technical Data may be found on
Frame Casting: Brass UNS-C89833
The Viking Corporation’s Web site at
Deflector: Brass UNS-C23000 or Bronze UNS-C22000
Bulb: Glass, nominal 3 mm diameter
http://www.vikinggroupinc.com.
Belleville Spring Sealing Assembly: Nickel Alloy, coated on both sides with
The Web site may include a more recent
Polytetrafluoroethylene (PTFE) Tape
edition of this Technical Data Page.
Pip Cap and Insert Assembly: Copper UNS-C11000 and Stainless Steel
UNS-S30400
Compression Screw: Brass UNS-C36000
Ordering Information: (Also refer to the current Viking price list.)
Sprinkler: Base Part No. 19442
Order Lead Freed Sprinkler VK4670 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, Chrome = F, White Polyester = M-/W, and Black Polyester = M-/B
Temperature Suffix: 155 °F (68 °C) = B, 175 °F (79 °C) = D
For example, sprinkler VK4670 with a Brass finish and a 155 °F (68 °C) temperature rating = Part No. 19442AB.
Available Finishes And Temperature Ratings:
Refer to Table 1.
Accessories: (Also refer to the “Sprinkler Accessories” section of the Viking data book.)
Sprinkler Wrenches:
A. Standard Wrench: Part No. 10896W/B (available since 2000)
Sprinkler Cabinets:
A. Six-head capacity: Part No. 01724A (available since 1971)
B. Twelve-head capacity: Part No. 01725A (available since 1971)
Form No. F_061314 Rev 14.1
(New Page)
Page 2 of 6
FREEDOM® RESIDENTIAL
UPRIGHT LEAD FREE
SPRINKLER
VK4670 (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
4. INSTALLATION
Refer to appropriate NFPA Installation Standards.
5. OPERATION
During fire conditions, the heat-sensitive liquid in the glass bulb expands, causing the glass to shatter, releasing the pip cap and
sealing spring assembly. Water flowing through the sprinkler orifice strikes the sprinkler deflector, forming a uniform spray pattern
to extinguish or control the fire.
6. INSPECTIONS, TESTS AND MAINTENANCE
Refer to NFPA 25 for Inspection, Testing and Maintenance requirements.
7. AVAILABILITY
The Viking Freedom® Residential Upright Lead Free Sprinkler VK4670 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
Bulb Color
Ordinary
155 °F (68 °C)
100 °F (38 °C)
Red
Intermediate
175 °F (79 °C)
150 °F (65 °C)
Yellow
Sprinkler Finishes: Brass, Chrome, White Polyester, and Black Polyester
Footnotes
1
The sprinkler temperature rating is stamped on the deflector.
2
Based on NFPA-13. Other limits may apply, depending on fire loading, sprinkler location, and other requirements of the Authority Having Jurisdiction.
Refer to specific installation standards.
Protective Sprinkler Clip
Wrench Flat
Figure 1: Standard Sprinkler Wrench 10896W/B
Form No. F_061314 Rev 14.1
Page 3 of 6
FREEDOM® RESIDENTIAL
UPRIGHT LEAD FREE
SPRINKLER
VK4670 (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
Approval Chart
Viking VK4670, 4.9 K-Factor Residential Upright 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 NFPA 13, 13R or 13D 2013 Editions
Sprinkler Base
Part Number1
SIN
19442
VK4670
Max. Coverage
Area4
Ft.X Ft.
(m X m)
NPT Thread Size
Nominal K-Factor
Inches
mm
U.S.
metric
1/2
15
4.9
70.6
Ordinary Temp
Rating (155 °F/68 °C)
Intermediate Temp
Rating (175 °F/79 °C)
Flow4
Pressure4
Flow4
Pressure4
GPM
PSI
GPM
PSI
(L/min)
(bar)
(L/min)
(bar)
12 X 12
14
8.16
14
8.16
(3.7 X 3.7)
(53.0)
(0.56)
(53.0)
(0.56)
14 X 14
14
8.16
14
8.16
(4.3 X 4.3)
(53.0)
(0.56)
(53.0)
(0.56)
16 X 16
16
10.66
16
10.66
(4.9 X 4.9)
(60.6)
(0.73)
(60.6)
(0.73)
12 X 12
15
9.37
15
9.37
(3.7 X 3.7)
(56.8)
(0.65)
(56.8)
(0.65)
14 X 14
15
9.37
15
9.37
(4.3 X 4.3)
(56.8)
(0.65)
(56.8)
(0.65)
16 X 16
18
13.49
18
13.49
(4.9 X 4.9)
(68.1)
(0.93)
(68.1)
(0.93)
--
--
12 X 12
15
9.37
(3.7 X 3.7)
(56.8)
(0.65)
14 X 14
15
9.37
(4.3 X 4.3)
(56.8)
(0.65)
16 X 16
18
13.49
(4.9 X 4.9)
(68.1)
(0.93)
--
--
--
--
2
Overall Length
Maximum Water
Working Pressure
Inches
mm
175 psi (12 bar)
2-1/4
58
Listings and Approvals3
Deflector
to Ceiling
Installation
Type
5
NYC
NSF8
See
Footnote 6.
See
Footnote 7.
Minimum
Spacing
Ft.
(m)
3 - 5 inches
5 - 10
inches
Upright
See
Footnote 7.
9
(2.74)
1 to 3 inches below
14 inch
beams
Footnotes
Part number shown is the base part number. For complete part number, refer to Viking’s current 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
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.
5
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
Approved Finishes are: Brass, Chrome, White Polyester, and Black Polyester9
8
UL Classified to: NSF/ANSI Standard 61, Drinking Water System Components and NSF 372 (MH48034).
9
Other paint colors are available on request with the same C-UL-US-EU listings as the standard finish colors.
1
Form No. F_061314 Rev 14.1
Page 4 of 6
TECHNICAL DATA
FREEDOM® RESIDENTIAL
UPRIGHT LEAD FREE
SPRINKLER
VK4670 (K4.9)
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
DESIGN CRITERIA
(Also refer to the Approval Chart.)
UL Listing Requirements (C-UL-US-EU):
When using Viking Freedom® Residential Upright Lead Free Sprinkler VK4670 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.
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 NFPA13R 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 of NFPA 13.
• Minimum distance between residential sprinklers: 9 ft. (2.74 m).
BEAM CEILING GUIDELINES
C-UL-US-EU Listed for installation in residential occupancies with beam ceilings (with horizontal ceilings only).
Refer to the Approval Chart for sprinkler areas of coverage and hydraulic design.
Sprinkler Location: Locate sprinklers on the underside of the beams (not in the bays or pockets formed by the beams). Refer to Figure 2. The vertical
distance from the sprinkler deflector to the bottom of the primary beam must be between 1” and 3” (25 to 76 mm). The horizontal distance from the
centerline of the sprinkler to the primary beam cannot be more than 2” (51 mm) (Figure 2).
Beam Position: Directly attached to the underside of a combustible or non-combustible smooth ceiling of any height.
Beam Size and Shape (Cross section):
• Depth: Maximum 14” (356 mm) for primary beams. Secondary beam depth cannot be greater than the primary beam.
• Width: Unlimited.
• Beam Shape: Rectangular to circular.
Beam Types: Combustible or non-combustible, solid surface, solid or hollow core.
Beam Spacing:
A. For primary beams, the distance from the wall to the center of the nearest primary beam must be at least 3’-4” (1.0 m), and not more than one-half
the listed sprinkler spacing. Note: Sprinklers may not be required to be located in the first beam nearest the wall. Center-to-center distance between
primary beams is to be a maximum of 16 ft (4.9 m). Refer to Figure 3A.
B. When beam pockets created by the primary beams exceed 20 ft (6.1 m) in length, secondary beams are required as follows (also refer to Figure 3B):
1. Secondary beam depth must be equal to primary beam depth.
2. Secondary beams must be placed so that the bays formed by the primary beams do not exceed 20 ft (6.1 m) in length.
C. When primary beam spans do not exceed 20 ft (6.1 m), secondary beams (not required) may have any distance from wall to nearest secondary beam
and any distance center to center between secondary beams. Refer to Figure 3C.
Also:
When primary beam spans exceed 20ft (6.1m) an alternate protection scheme for the compartment would be to calculate all the sprinklers in the compartment. Refer to Figure 5.
• More stringent design requirement.
• Secondary beams or baffles would not be required for a compartment space design.
• The minimum required discharge from each sprinkler would utilize flow rates given in the Approval Chart for NFPA 13D and NFPA13R applications
Lintels: Must be present over doorways exiting the compartment. Lintel height must be at least 8” (203 mm), or at least the depth of the primary beams,
whichever is greater.
Beam and Soffit Arrangements: If a soffit is installed, beams may be arranged within the soffit. The cross section of the soffit may be any size, provided it does not create an obstruction to water distribution per the obstruction rules of NFPA 13 for residential sprinklers. Where there is a soffit, beam
spacing from the wall is to be measured from the face of the soffit rather than the wall. Refer to Figure 3D. NOTE: The sprinkler area of coverage is to
be measured from the wall.
Definitions:
• Primary beams: The main beams that run primarily in one direction.
• Secondary beams: The beams that run perpendicular to the main beams.
IMPORTANT: Always refer to Bulletin Form No. F_091699 - Care and Handling of Sprinklers. Also refer to pages RES1-17 for
general care, installation, and maintenance information. Viking sprinklers are to be installed 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
Form
No. F_061314
Rev 14.1
acceptance
of all residential
sprinkler installations must be obtained from the Authorities Having Jurisdiction.
Page 5 of 6
TECHNICAL DATA
FREEDOM® RESIDENTIAL
UPRIGHT LEAD FREE
SPRINKLER
VK4670 (K4.9)
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
Figure 2: Sprinkler Positioning Under Primary Beams
Figure 3: Sprinkler Positioning Under Primary Beams
Form No. F_061314 Rev 14.1
Page 6 of 6
TECHNICAL DATA
FREEDOM® RESIDENTIAL
UPRIGHT LEAD FREE
SPRINKLER
VK4670 (K4.9)
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
All dimensions are measured to wall faces and to centerlines
of beams.
A = Distance from wall to nearest primary beam:
Minimum: 3 ft 4 in (1.0 m).
Maximum: No more than 1/2 listed sprinkler spacing.
All dimensions are measured to wall faces and to centerlines
of beams.
A = Distance from wall to nearest primary beam:
Minimum: 3 ft 4 in (1.0 m).
Maximum: No more than 1/2 listed sprinkler spacing.
B = Spacing between primary beams: 16 ft (4.9 m) maximum
B = Spacing between primary beams: 16 ft (4.9 m) maximum
C = Beam depth: 14” (356 mm) maximum
C = Beam depth: 14” (356 mm) maximum
D = Beam span: 20 ft (6.1 m) maximum
D = 20 ft (6.1 m) maximum for secondary beams that are to be
equal in depth for primary beams and that are required so that
primary beam pockets do not exceed 20 ft (6.1 m).
Figure 4A: Primary Beam Spans up to 20 ft (6.1 m)
Figure 4B: Primary Beam Spans over 20 ft (6.1 m)
EXAMPLE
All dimensions are measured to wall faces
and to centerlines of beams.
• Primary beam spans exceeding 20 ft (6.1 m)
• Secondary beams or baffles not required
• Calculate all sprinklers in compartment
(Above example 6 sprinklers)
Figure 5: Alternate Entire Compartment Protection Scheme Example
Form No. F_061314 Rev 14.1
(New Page)
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