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Page 3 of 4 <br /> ® MICROFAST° QUICK <br /> NIKJNG4 RESPONSE UPRIGHT <br /> SPRINKLER VK350 (K8.0) <br /> The Viking Corporation,210 N Industrial Park Drive, Hastings MI 49058 <br /> Telephone: 269-945-9501 Technical Services: 877-384-5464 Fax: 269-818-1680 Email: techsvcs@vikingcorp.com <br /> Visit the Viking website for the latest edition of this technical data page: www.vikinggroupinc.com <br /> Approval Chart 1 (UL) Temperature KEY <br /> MicrofasV Quick Response Finish <br /> AL Upright Sprinkler VK350 AIX-Escutcheon(if applicable) <br /> Maximum 175 PSI (12 bar)WWP <br /> Base Part Thread Size Nominal Overall Length Listings and Approvals' <br /> SIN K-Factor (Refer also to Design Criteria.) <br /> Number' NPT BSP U.S. metric2 Inches mm cULus° VdS LPCB (E 10 O <br /> 18257 VK350 3/4" -- 8.0 115.2 2-5/16 59 Al, B2 Al Al B1' B1 <br /> 18278 VK350 -- 20 mm 8.0 115.2 2-5/16 59 Al, B2 Al Al B1' B1 <br /> 182599 VK350 1/2" 15 mm 8.0 115.2 2-5/16 59 Al, B2 Al -- B16 -- <br /> 20382 VK350 3/4" -- 8.0 115.2 2-5/16 59 - -- - -- C3 <br /> 20237 VK350 -- 20 mm 8.0 115.2 2-5/16 59 - -- - -- C3 <br /> NOTICE .. . Availability(Contact Local Viking Office) <br /> 06665E VK350 3/4" 1 -- 18.0 115.2 2-5/16 59 Al, B2 Al Al B1' B1 - <br /> 14817 VK350 -- 20 mm 8.0 115.2 2-5/16 59 Al, B2 Al Al B1' B1 - <br /> 06764139 VK350 1/2" 115 mm 18.0 115.2 2-5/16 59 A1, 62 Al -- A16 -- - <br /> Approved Temperature Ratings Approved Finishes <br /> A- 135 °F (57 °C), 155 °F (68 °C), 175 °F (79 °C), 200 °F (93 °C), 1 -Brass, Chrome, White Polyester56, and Black Polyester5,6 <br /> and 286°F(141°C) 2-ENT5 <br /> B- 155 °F (68 °C), 175°F (79°C), 200°F(93 °C), and 286 °F (141°C) 3-Chrome <br /> C- 155 °F(68 °C) <br /> Footnotes <br /> Base part number is shown. For complete part number, refer to Viking's current price schedule. <br /> z 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. <br /> 'This table shows the listings and approvals available at the time of printing. Check with the manufacturer for any additional approvals. <br /> °Listed by Underwriters Laboratories Inc.for use in the U.S.and Canada. <br /> s cULus Listed as corrosion resistant. <br /> 6 Other colors are available on request with the same Listings and Approvals as the standard colors. <br /> 'CE Certified,Standard EN 12259-1, EC-certificate of constancy of performance 0832-CPR-SO021 and EC-certificate of conformity 0786-CPD-40278. <br /> s The 1/2"NPT Large Orifice Sprinkler is listed and approved for retrofit only when installed in accordance with NFPA 13. <br /> 0 MED Certified, Standard EN 12259-1, EC-certificate 0832-MED-1003. <br /> DESIGN CRITERIA- UL <br /> (Also refer to Approval Chart 1) <br /> cULus Listing Reauirements: <br /> The Microfast®Quick Response Upright Sprinkler VK350 is cULus Listed as indicated in Approval Chart 1 for installation in accordance with the latest <br /> edition of NFPA 13 for standard spray sprinklers. <br /> • Designed for use in Light and Ordinary Hazard occupancies. <br /> • The sprinkler installation rules contained in NFPA 13 for standard spray upright sprinklers must be followed. <br /> IMPORTANT. Always refer to Bulletin Form No. F_091699 - Care and Handling of Sprinklers.Also refer to Bulletin Form No. <br /> F_080614 for general care, installation, and maintenance information.Viking sprinklers are to be installed in accordance with <br /> the latest edition of Viking technical data, the appropriate standards of NFPA, LPCB,APSAD, VdS or other similar organiza- <br /> tions, and also with the provisions of governmental codes, ordinances, and standards, whenever applicable. <br /> Form No. F_033014 18.10.14 Rev 19.1 <br />