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<br />April 6, 2007 <br /> <br />Sprinkler 120a <br /> <br />~IKlNGi <br /> <br />TECHNICAL DATA <br /> <br />ESFR PENDENT SPRINKLER <br />VK500 (K14.0) <br /> <br />The Viking Corporation, 210 N Industrial Park Road, Hastings MI 49058 <br />Telephone: 269-945-9501 Technical Services 877-384-5464 Fax: 269-945-4495 Email: techsvcs@vikingcorp.com <br /> <br />1. DESCRIPTION <br />Viking Early Suppression Fast Response (ESFR) Pendent Sprinkler VK500 is a fast <br />response fusible element type sprinkler designed for early fire suppression. With a <br />14.0 (202 metric') nominal K-Factor and special deflector, this sprinkler produces <br />large, high-momentum water droplets in a hemispheric pattern below the deflector, <br />This permits penetration of the fire plurne and direct wetting of the burning fuel surface <br />while cooling the atmosphere early in the development of a high-challenge fire. <br />Viking VK500 ESFR Pendent Sprinklers may be used in the protection of ordinary <br />types of storage. However, they are primarily intended to protect the following types of <br />storage, which tend to produce severe-challenge fires: palletized and solid pile stor- <br />age and single, double, multiple row, and portable open rack storage (no open-top <br />containers or solid shelves). . <br />Viking ESFR Pendent VK500 Sprinklers provide protection of most common storage <br />materials, including: <br />. -Encapsulated or unencapsulated Class I, II, III, and IV commodities'. <br />--Cartoned and uncartoned unexpanded plastics*. <br />--Cartoned and uncartoned expanded plastics*, <br />'Refer the Approval Chart on page 120c and Design Criteria on page 120 d for cULus and FM approval requirements that must be followed. <br />In addition, some storage arrangements of rolled paper, aerosols, and rubber tires may be protected by Viking ESFR Pendent <br />Sprinkler VK500. <br /> <br /> <br />2. LISTINGS AND APPROVALS <br />cULus Listed: Category VNWH <br />FM Approved: Class 2008 <br />NYC Approved: MEA 89-92-E, Volume 18 <br />VdS Approved: Certificate G4010001 <br />LPC Approved: Ref. No. 096e/07 <br />NOTE: Other International approval certificates are available upon request. <br />Refer the Approval Chart on page 120c and Design Criteria on page 120d for cULus and FM approval requirements that must be <br />followed. <br /> <br />3. TECHNICAL DATA <br />Specifications: <br />Minimum Operating Pressure: Refer to NFPA 13 and/or FM Global Loss <br />Prevention Data Sheets. <br />Maximum Working Pressure: 175 psi (12 bar). Factory tested hydrostatically <br />to 500 psi (34,5 bar). <br />Thread size: 3/4" (20 mm) NPT <br />Nominal K-Factor: 14.0 U.S. (202 metric') <br />'Metric K-factor measurement shown is when pressure is measured in bar. When pressure <br />is measured in kPa, divide the metric K-factor shown by 10.0, <br />Overall Length: 2-7/8" (73 mm) <br />Deflector Diameter: 1-3/4" (44.5 mm) <br /> <br />Viking Technical Data may be found on <br />The Viking Corporation's Web site at <br />http://www.vikinggroupinc.com. <br />The Web site may include a more recent <br />edition of this Technical Data Page. <br /> <br />Material Standards: <br />Frame Casting: Brass UNS-C84400 <br />Deflector: Phosphor Bronze UNS-C51000 <br />Seat (pip cap): Stainless Steel UNS-S31603 <br />Belleville Spring Sealing Assembly: Nickel Alloy, coated on both sides with Teflon Tape <br />Compression Screw: Stainless Steel UNS-S31603 <br />Trigger and Support: Stainless Steel UNS-S31600 <br /> <br />Form No. F_060198 <br /> <br />Replaces page 120a-f dated January 20, 2006 (revised <br />minimum area of coverage to 64 ft2 per NFPA 13.) <br />