Viking VK202-D Technical Data Manual

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 Standard Response Concealed Pendent Sprinklers are thermosensitive
glass bulb spray sprinklers pre-assembled with a threaded adapter for installation
with a domed cover that provides up to ½" (13 mm) of vertical adjustment. The cover
plate is available with several decorative finishes to meet design requirements. The
Electroless Nickel PTFE (ENT) finish has been investigated for installation in corro-
sive environments and is listed/approved as indicated in the Approval Charts. The
ENT finish is only available for the sprinkler assembly, the cover plate is not plated.
The two-piece design allows installation and testing of the sprinkler prior to instal-
lation 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. 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.
2. LISTINGS AND APPROVALS
cULus Listed: Category VNIV
FM Approved: Classes 2015
Refer to the Approval Charts and Design Criteria for Listing and Approval requirements that must be followed.
3. TECHNICAL DATA
Specifications:
Minimum Operating Pressure: 7 psi (0.5 bar)
Maximum Working Pressure: 175 psi (12 bar).
Factory tested hydrostatically to 500 psi (34.5 bar).
Thread Size: 3/4" (20 mm) NPT
Nominal K-Factor: 8.0 U.S. (115.2 metric*)
* 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.
Glass-bulb fluid temperature rated to -65 °F (-55 °C)
Overall Length (sprinkler body): 2-5/16" (59 mm)
Material Standards:
Frame Casting: Brass UNS-C84400
Deflector: Phosphor bronze UNS-C51000 or copper UNS-C19500
Bulb: Glass, nominal 5 mm diameter
Belleville Spring Sealing Assembly: Nickel alloy, coated on both sides with PTFE tape
Compression Screw: Brass UNS-C36000
Pip Cap and Insert Assembly: Copper UNS-C11000 and stainless steel UNS-S30400
Cover Adapter: Cold Rolled Steel UNS-G10080, Finish: Clear chromate over zinc plating
Cover Assembly Materials:
Cover Plate Assembly: Copper UNS-C11000 and brass UNS-C26800
Spring: Beryllium nickel
Solder: Eutectic
Ordering Information: (Also refer to the current Viking price list.)
Viking Standard Response Concealed Pendent Sprinkler VK202 and cover plate assembly must be ordered separately:
Sprinkler: Base Part No. 10142A-X for brass finish, and 10142JN-X for ENT finish (includes sprinkler and adapter pre-assembled,
with a protective plastic cap covering the unit)
Specify sprinkler temperature rating by adding the appropriate suffix for the temperature rating to the base part number:
Temperature Suffix: 155 °F (68 °C) = B, 175 °F (79 °C) = D, 200 °F (93 °C) = E
For example, concealed sprinkler VK202, brass finish, with a 155 °F (68 °C) temperature rating = 10142ABX.
NOTE: When ordering this sprinkler using the SIN, add suffix -D. For example, concealed sprinkler VK202 = VK202-D.
Form No. F_101912 September 2023
TECHNICAL DATA
The Viking Corporation, 210 N Industrial Park Drive, Hastings MI 49058
Rev 01
STANDARD RESPONSE
CONCEALED PENDENT
SPRINKLER VK202-D (K8.0)
Replaces Form No. F_101912 Rev 19.2
(Updated 135F cover plate temp. to 139F.)
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