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 Quick Response Extended Coverage Concealed Horizontal Sidewall
Sprinkler VK630 is a thermosensitive spray sprinkler pre-assembled with a
threaded adapter for installation with a domed cover. The glass bulb operating
element and special deflector characteristics meet the challenges of quick
response extended coverage standards.
The special Electroless Nickel PTFE coating has been investigated for installation
in corrosive atmospheres and is listed/approved as corrosion resistant as
indicated in the Approval Chart (NOTE: FM Global approves the ENT coating as
corrosion resistant). The cover plate is not available with ENT finish.
The cover plate provides up to 1/4" (6.35 mm) of horizontal adjustment and is
available with 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. 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 finish work has been completed. The cover assembly can be
removed and reinstalled, allowing access behind the surface of the wall without
taking the sprinkler system out of service or removing the sprinkler.
2. LISTINGS AND APPROVALS
cULus Listed: Category VNIV
Refer to the Approval Chart on page 3 and Design Criteria on page 4 for cULus Listing 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 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 (Sprinkler Body): 2-9/16" (65 mm)
Covered by the following US Patent Nos: 7,854,269 and 7,712,218
Material Standards:
Sprinkler Frame: Brass UNS-C84400
Deflector: Phosphor Bronze UNS-C51000
Bulb: Glass, nominal 3 mm diameter
Pip Cap and Insert Assembly: Copper UNS-C11000 and Stainless Steel UNS-S30400
Compression Screws: 18-8 Stainless Steel
Belleville Spring Sealing Assembly: Nickel Alloy, coated on both sides with Teflon Tape
Yoke: Phosphor Bronze UNS-C51000
Ejector Spring: 17-7 Stainless Steel
Cover Adapter: Cold Rolled Steel UNS-G10080, Finish: Clear Chromate over Zinc Plating
Cover Assembly Materials:
Cover: Copper UNS-C11000
Base: Brass UNS-C26000 or UNS-C26800
Springs: Nickel Alloy
Solder: Eutectic
Ordering Information: (Also refer to the current Viking price list.)
Viking QR Extended Coverage Concealed HSW Sprinkler VK630 and Cover Plate Assembly must be ordered separately:
Form No. F_102805
Rev 02
TECHNICAL DATA
The Viking Corporation, 210 N Industrial Park Drive, Hastings MI 49058
)
†
December 2023
QUICK RESPONSE
EXTENDED COVERAGE
CONCEALED HSW
SPRINKLER VK630 (K8.0)
For Light Hazard Occupancies Only
Replaces Form No. F_102805 Rev 01
(Removed NYC Approval & 135°F sprinkler temp.)
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