Viking VK500 K14.0 Technical Data Manual

March 7, 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
1. DESCRIPTION
Viking Early Suppression Fast Response (ESFR) Pendent Sprinkler VK500 is a fast
response fusible element type sprinkler designed for early fire suppression. With a
14.0 (202 metric*) nominal K-Factor and special deflector, this sprinkler produces
large, high-momentum water droplets in a hemispheric pattern below the deflector.
This permits penetration of the fire plume and direct wetting of the burning fuel surface
while cooling the atmosphere early in the development of a high-challenge fire.
Viking VK500 ESFR Pendent Sprinklers may be used in the protection of ordinary
types of storage. However, they are primarily intended to protect the following types of
storage, which tend to produce severe-challenge fires: palletized and solid pile stor-
age and single, double, multiple row, and portable open rack storage (no open-top
containers or solid shelves).
Viking ESFR Pendent VK500 Sprinklers provide protection of most common storage
materials, including:
--Encapsulated or unencapsulated Class I, II, III, and IV commodities*.
--Cartoned and uncartoned unexpanded plastics*.
--Cartoned and uncartoned expanded plastics*.
* Refer the Approval Chart on page 120c and Design Criteria on page 120d for cULus and FM approval requirements that must be followed.
In addition, some storage arrangements of rolled paper, aerosols, and rubber tires may be protected by Viking ESFR Pendent
Sprinkler VK500.
2. LISTINGS AND APPROVALS
cULus Listed: Category VNWH
FM Approved: Class 2008
NYC Approved: MEA 89-92-E, Volume 18
VdS Approved: Certificate G4010001
LPC Approved: Ref. No. 096e/07
NOTE: Other International approval certificates are available upon request.
Refer the Approval Chart on page 120c and Design Criteria on page 120d for cULus and FM approval requirements that must be
followed.
3. TECHNICAL DATA
Specifi cations:
Available since 2000.
Minimum Operating Pressure: Refer to NFPA 13 and/or FM Global Loss
Prevention Data Sheets.
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: 14.0 U.S. (202 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.
Overall Length: 2-7/8" (73 mm)
Deflector Diameter: 1-3/4" (44.5 mm)
Material Standards:
Frame Casting: Brass UNS-C84400
Deflector: Phosphor Bronze UNS-C51000
Seat for Sprinklers 14779 and 11350: Stainless Steel UNS-S31603
Seat and Insert Assembly for Sprinkler 10284: Copper UNS-C11000 and Stainless Steel UNS-S30400
Belleville Spring Sealing Assembly: Nickel Alloy, coated on both sides with Teflon Tape
Compression Screw: Stainless Steel UNS-S31603
Form No. F_060198
TECHNICAL DATA
Replaces page 120a-f dated February 1, 2008.
(Added FM and cULus Approval for Sprinkler 14779.)
ESFR PENDENT SPRINKLER
VK500 (K14.0)
Viking Technical Data may be found on
The Viking Corporation's Web site at
http://www.vikinggroupinc.com.
The Web site may include a more recent
edition of this Technical Data Page.
Sprinkler 120a