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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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Sprinkler
Base Part
SIN
Type
Number
20952
VK660
HIP
20952
VK660
HIP
Pitch and slope indicate the incline of a roof, expressed as a proportion of the vertical rise to the horizontal run.
1
Maximum coverage at eaves can be extended up to 10'-0" (3,05 m) by installing a single row of Attic Upright VK696 or VK697 sprinklers.
2
Refer to NFPA 13, 2013, Section 7.2.3.
3
The V-HIP roof span is measured horizontally as shown in Figure 5.
4
IMPORTANT: Always refer to Bulletin Form No. F_091699 - Care and Handling of Sprinklers. Also refer to Bulletin Form No.
F_080614 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, LPCB, APSAD, VdS or other similar organiza-
tions, and also with the provisions of governmental codes, ordinances, and standards, whenever applicable.
Design criteria: Flow and pressures refer to Design Criteria - UL Chart 1.
System type:
Wet systems and dry systems.
Antifreeze Systems:
Use only listed antifreeze in accordance with the applicable NFPA standard as follows:
Option 1: Use any listed antifreeze in accordance with the manfacturer's installation instructions.
Option 2: For a Light Hazard Unoccupied attic
Use freezemaster™ antifreeze (refer to Manufacturer's documentation)
1.
Viking Attic Sprinklers (V-BB, V-HIP, V-SD, VK696, VK697)
2.
Piping types:
Steel (wet and dry) CPVC (wet systems only).
Occupancy classification: Light hazard only.
NOTE: The Model V-HIP Special Application Attic sprinklers have not been evaluated for use with sprayed on foam insulation.
Viking V-HIP Sprinkler Spacing
Maximum coverage area:
The maximum coverage area for the V-HIP sprinkler is the distance down the greater of the 2 slopes, multiplied by 2, then multiplied
by the distance between the V-HIP sprinklers on the branchlines, measured along the slope.
Minimum distance of V-HIP sprinkler between other sprinklers along branchline:
4'-0" (1,22 m) - From V-BB and V-SD Sprinklers.
3'-0" (0,91 m) - From V-HIP Sprinklers.
7'-0" (2,13 m) - From Attic Upright Sprinklers.
6'-0" (1,83 m) - From Standard Spray Sprinklers.
Form No. F_092116
Rev 01
The Viking Corporation, 210 N Industrial Park Drive, Hastings MI 49058
DESIGN CRITERIA - UL Chart 1
(Also refer to Approval Chart)
Allowable, flow, pressure and slope for attic protection using Viking VK660 Sprinklers
Nominal
Thread Size
K-Factor
NPT
BSP
U.S. metric
1/2"
15 mm
5.6
80,6
1/2"
15 mm
5.6
80,6
ADDITIONAL DESIGN CRITERIA - UL Chart 2
(Also refer to Approval Chart 1 and Design Criteria - UL Chart 1)
Allowable , flow, pressure and slope for attic protection using Viking VK660 Sprinklers
February 2023
TECHNICAL DATA
Minimum
Allowable Roof Span
2,
4
ft. (m)
GPM LPM
≤ 20 (6,1)
24
>20 (6,1) to ≤ 28 (8,5)
34
Footnotes
MODEL V-HIP
SPECIFIC APPLICATION
ATTIC SPRINKLER
VK660
Minimum
Flow
Pressure
Pitch
PSI
BAR
90.8
20
1,4
4:12 < 12:12
128.7 36.9
2,5
4:12 < 12:12
Page 4 of 9
Dry Pipe System
Maximum Water
1
Delivery Time
3
(in seconds)
See footnote 3
See footnote 3
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