Viking VK514 Technical Data Manual

Telephone: 269-945-9501 Technical Services: 877-384-5464 Fax: 269-818-1680 Email: techsvcs@vikingcorp.com
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1. DESCRIPTION
Viking Specific Application Early Suppression Fast Response (ESFR) Pendent
Sprinkler VK514 incorporates the capability to suppress specific high-challenge
fires. The larger K-Factor allows protection of higher hazard commodities at
greater ceiling heights with lower end-head pressures. K28.0 sprinklers can:
• Provide flexibility of fire protection designs.
• Eliminate the use of in-rack sprinklers when protecting high piled storage of
certain specified materials up to:
UL (Refer to Table 4): 43 ft. (13,1 m) with ceilings up to 48 ft. (14,6 m)*
FM (Refer to Table 5): 50 ft. (15,2 m) with ceilings up to 55 ft. (16,76 m)*
Viking VK514 ESFR Pendent Sprinklers are primarily intended to protect the
following types of storage, which tend to produce severe-challenge fires: palletized
and solid pile storage and single, double, and portable open rack storage (no
open-top containers or solid shelves). The VK514 is listed to utilize a minimum
aisle width of 6'-0" (UL - 43' storage or FM - 45' storage) or 8'-0" (FM - 50' storage).
Viking ESFR Pendent VK514 Sprinklers provide protection of most common
storage materials, including:
• Encapsulated or unencapsulated Class I, II, III, and IV commodities*.
• UL Listed for protection of cartoned nonexpanded** Group A plastic
commodities*.
• FM Approved for protection of cartoned unexpanded** plastic commodities.*
* Refer the Approval Chart and Commodity Selection and Design Criteria Overview for Listing
and Approval requirements that must be followed.
** The terms nonexpanded and unexpanded are equivalent.
2. LISTINGS AND APPROVALS*
UL Listed: Category VNWH (Listed as a Specific Application ESFR
Sprinkler)
FM Approved: Class 2035
* Refer the Approval Chart and Commodity Selection and Design Criteria Overview for Listing and Approval requirements that must be followed.
3. TECHNICAL DATA
Specifications:
Maximum Working Pressure: 175 psi (12 bar). Factory tested hydrostatically to 500 psi (34.5 bar).
Thread size: 1" NPT or 25 mm BSPT (Refer to Table 2)
Nominal K-factor: 28.0 U.S. (404 metric*)
* Metric K-factor measurement shown is in bar. When pressure is measured in kPa, divide the metric K-factor shown by 10.0.
Overall Length: 3-3/16" (81 mm)
Deflector Diameter: 1-3/4" (45 mm)
Covered by one or more of the following patents: US5,829,532; US6,059,044; US6,336,509; US6,502,643; US6,868,917; AU722593; GB2336777
Material Standards:
Frame Casting: Brass UNS-C84400
Deflector: Phosphor Bronze UNS-C51000
Seat: Copper UNS-C11000 and Stainless Steel UNS-S30400
Belleville Spring Sealing Assembly: Nickel Alloy, coated on both sides with PTFE Tape
Compression Screw: Stainless Steel UNS-S31603
Trigger and Support: Stainless Steel UNS-S31600
Fusible Element Assembly: Beryllium Nickel, coated with black epoxy paint.
Ordering Information: Refer to Table 2
Form No. F_010715 20.06.02
TECHNICAL DATA
The Viking Corporation, 210 N Industrial Park Drive, Hastings MI 49058
45 ft. (13,5 m) with ceilings up to 50 ft. (15,2 m)*
Rev 20.2
OR
SPECIFIC APPLICATION ESFR
PENDENT SPRINKLER
VK514 (K28.0)
TABLE 1
SPRINKLER GENERAL INFORMATION
Item
Sprinkler Identification
Number (SIN)
K-factor, gpm/psi (lpm/bar )
½ ½
Thread Size
Sprinkler Orientation
Maximum Working Pressure
Replaces Form No. F_010715 Rev 20.1
(Revised Table 3)
Page 1 of 6
Description
VK514
28.0 (404)
1" NPT (25 mm)
Pendent
175 psi (12 bar)