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August 1, 2008
The Viking Corporation, 210 N Industrial Park Road, Hastings MI 49058
Telephone: 269-945-9501 Technical Services 877-384-5464 Fax: 269-945-4495 Email: techsvcs@vikingcorp.com
VdS Approval Requirements:
Flat Spray Sprinklers VK920 and VK922 are VdS Approved as indicated in the Approval Chart for installation in accordance with CEA 4001 "Sprinkler Systems
Planning and Installation" or EN12845 "Automatic Sprinkler Systems - Design, Installation, and Maintenance" where flat spray sprinklers are permitted.
Permitted for use only in concealed spaces, above suspended open ceilings, and in racks.
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Approved for use only in the pendent position. Align the deflector parallel with the ceiling or roof.
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Sprinkler VK920 (K80) is allowed in OH installations and HHS as an intermediate sprinkler in high piled storage.
Sprinkler VK922 (K115) is allowed only in HHS as an intermediate sprinkler in high piled storage.
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Deflector Position
1. For OH installations: There must be a clear space of at least 12" (300 mm) between the sprinkler deflector and the suspended roof or suspended ceiling.
NOTE: This includes suspended open cell ceilings in OH occupancies. The vertical distance between the sprinkler deflector and the top of
the suspended ceiling shall be no less than 12" (300 mm).
2. Intermediate sprinklers in HH occupancies: The clearance between the sprinkler deflector and the top of storage shall be not less than 4"
(100 mm). NOTE: It shall be ensured that water from sprinklers operating at intermediate levels can penetrate the goods stored. The dis-
tance between goods stored in racking and placed back to back shall be at least 6" (150 mm), and if necessary, pallet stops fitted.
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Beams and similar obstructions: Refer to CEA 4001 or EN12845 and Figure 3 below.
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For effective installation, CEA 4001 or EN12845 must be referenced and followed in all cases.
NOTE: Flat Spray Sprinklers have water distribution characteristics that are significantly different from standard spray sprinklers and conventional
sprinklers. This allows Sprinklers VK920 and VK922 to be used in conformance with CEA 4001 or EN12845.
IMPORTANT: Always refer to Bulletin Form No. F_091699 - Care and Handling of Sprinklers. Viking sprinklers are
to be installed in accordance with the latest edition of Viking technical data, the appropriate standards of NFPA,
FM Global, LPCB, VdS or other similar organizations, and also with the provisions of governmental codes, ordi-
nances, and standards, whenever applicable.
TECHNICAL DATA
DESIGN CRITERIA
(Also refer to the Approval Chart on page 127c.)
a = Minimum horizontal distance from beam to sprinkler, m
b = Height of deflector above (+) or below (-) beam, m
Figure 3:
Distance of Sprinkler Deflector from Beams (m)
Sprinkler 127e
FLAT SPRAY PENDENT
SPRINKLERS VK920 (K80)
AND VK922 (K115)
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