Viking VK697 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
The Viking Attic Upright VK697 is a specific application attic sprinkler that provides
superior fire protection in combustible and non-combustible sloped attic spaces
when used in conjunction with Viking's model V-BB (Back to Back), V-SD (Single
Directional), V-EP (Eave Protection), and V-HIP specific application sprinklers.
Installed in the upright position, with the deflector parallel to the roof, the Attic
Upright used in combination with the model V-BB increases the allowable span
from 60' to 80' (18,3 m to 24,4 m), and up to a 100'-0" (30,5) span when used with
the model V-EP sprinklers.
Viking Attic Upright sprinklers can be installed with either steel (black or
galvanized)or CPVC piping, and allow the use of CPVC to feed the protected
space below the attic (CPVC allowed on wet pipe systems only). They are
available in brass or with corrosion-resistant Electroless Nickel PTFE (ENT)
coatings where salt water and other corrosive elements are a consideration.
Viking Attic Upright sprinklers are cULus Listed with specific application
guidelines for use as special sprinklers as defined by the National Fire Protection
Association (NFPA), and are listed for specific pitch ranges. The VK697
is approved in 2.5:12 to 6:12 roof pitches when used with the VK690. The
VK697 is approved in 4:12 to 12:12 roof pitches in all other attic applications.
Refer to the approval chart in this document.
2. LISTINGS AND APPROVALS
cULus Listed: Category VNIV
Refer to the approval chart in this document.
3. TECHNICAL DATA
Specifications:
Minimum Operating Pressure: 7 psi (0.5 bar)
Rated to 175 psi (12 bar) water working pressure
Factory tested hydrostatically to 500 psi (34.5 bar)
Thread size: 1/2" (15 mm) NPT
Nominal K-Factor: 5.6 U.S. (80 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: 2-1/4" (57 mm)
Covered by the following U.S. Patent No.: 8,083,002 owned by Tyco.
Material Standards:
Frame Casting: Brass UNS-C84400 or QM Brass
Deflector: Phosphor Bronze UNS-C51000
Bulb: Glass, nominal 3 mm diameter
Belleville Spring Sealing Assembly: Nickel Alloy, coated on both sides with Teflon Tape
Screw: Brass UNS-C36000
Pip Cap and Insert Assembly: Copper UNS-C11000 and Stainless Steel UNS-S30400
Ordering Information: (Also refer to the current Viking price list.)
To order the Attic Sprinkler, add the appropriate suffix for the sprinkler finish and then the appropriate suffix for the temperature
rating to the sprinkler base part number.
Finish Suffix: Brass = A, ENT = JN
Temperature Suffix: E = 200 °F (93.3 °C)
Available Finishes And Temperature Ratings:
Refer to Table 1.
Accessories: (Also refer to the Viking website.)
Form No. F_042517 Rev 01
TECHNICAL DATA
The Viking Corporation, 210 N Industrial Park Drive, Hastings MI 49058
February 2023
ATTIC UPRIGHT
SPECIFIC APPLICATION
SPRINKLER VK697
VK697 Attic Upright Sprinkler
SIN K-factor
VK697 5.6 (80.6 metric)
**The VK697 is approved in 2.5:12 to 6:12 roof
pitches when used with the VK690. The VK697
is approved in 4:12 to 12:12 roof pitches in all
other attic applications.
Replaces Form No. F_042517 Rev 21.1
(added foam insulation note.)
Page 1 of 9
Pitch
**
2.5:12 < 12:12