Viking VK188 EC REC HS CH 155 6 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/Quick Response Extended Coverage Dry Horizontal Sidewall
Sprinklers are thermosensitive spray sprinklers suitable for use in areas subject to
freezing. The sprinklers are designed for dry systems and preaction systems where
it is necessary to prevent water or condensation from entering the drop nipple be-
fore sprinkler operation. They may also be installed in spaces subject to freezing
and supplied from a wet system in an adjacent heated area.
The Polyester and Electroless Nickel PTFE (ENT) coatings have been investigated
for installation in corrosive atmospheres and are cULus listed as corrosion resistant
as indicated in the Approval Chart.
NOTE: When installed in some corrosive environments, the Polyester finish
may change color. This natural discoloration over time is not in itself an indi-
cation of corrosion and should not be treated as such. All sprinklers installed
in corrosive environments should be replaced or tested as described in
NFPA 25 on a more frequent basis.
2. LISTINGS AND APPROVALS
cULus Listed: Category VNIV
Refer to the Approval Chart and Design Criteria for cULus Listing requirements that must be followed.
3. TECHNICAL DATA
Specifications:
Available since 1998.
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" NPT or 25 mm BSPT
Nominal K-Factor: 5.6 U.S. (80.6 metric*) for all listed and approved lengths.
* 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)
Covered by the following U.S. Patent numbers: 8,636,075 and 8,376,060 and 10,220,231
Material Standards:
Frame Casting: Brass UNS-C84400
Deflector: Copper UNS-C19500
Bulb: Glass, nominal 3 mm diameter
Belleville Spring Sealing Assembly: Nickel Alloy, coated on both sides with PTFE Tape
Compression Screw: Brass UNS-C36000
Pip Cap and Pip Cap Adapter: Brass UNS-C36000
Orifice: Copper UNS-C22000
Tube: ERW Hydraulic Steel Tube
Support (Internal): Stainless Steel UNS-S30400
Barrel: Steel Pipe UNS-G10260, Electrodeposited Epoxy Base finish
Barrel End and Threads: QM Brass
Escutcheon Materials:
Recessed Dry Escutcheons: Cold Rolled Steel UNS-G10080
ENT Coated Adjustable and Recessed Escutcheons: Stainless Steel UNS-S30400
Ordering Information: (Also refer to the current Viking price list.)
Sprinkler: Base Part No. 10542U
Order Standard/Quick Response Extended Coverage Dry Horizontal Sidewall Sprinklers by first adding the appropriate suffix for
the sprinkler finish, the appropriate suffix for the temperature rating, and then the suffix for the length ("A" dimension) to sprin-
kler base part number. Order in a specific length noted as the "A" dimension (see Figure 3). The "A" dimension is the distance
from the face of the fitting (tee) to the desired finished surface of the wall in which it is to be installed.
These sprinklers are listed and approved in lengths from 3-1/4" to 47-1/2" (82.5 mm to 1,207 mm) for the adjustable recessed style.
Finish Suffix: Chrome = F, White Polyester = M-/W, and ENT = JN
Form No. F_051598 20.03.18
TECHNICAL DATA
The Viking Corporation, 210 N Industrial Park Drive, Hastings MI 49058
Rev 20.1
STANDARD/QUICK
RESPONSE EXTENDED
COVERAGE DRY HORIZON-
TAL SIDEWALL SPRINKLER
For Light Hazard Occupancies Only
Replaces Form No. F_051598 Rev 19.1
(Revised factory test
Page 1 of 6
specifications.)