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Page 3 of 6 <br />R_ QUICK RESPONSE <br />ELO PENDENT <br />SPRINKLER VK377 <br />(STORAGE-DENSITY/AREA) <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 - U L Temperature KEY <br />Quick Response Extra -Large Orifice Pendent Sprinkler VK377 Finish <br />A1X4- Escutcheon (if applicable) <br />Maximum 175 PSI (12 Bar) WWP <br />Nominal <br />Listings and Approvals3 <br />Base Part <br />SIN <br />Sprinkler <br />Thread Size <br />K-Factor <br />Overall Length <br />(Refer also to Design Criteria below.) <br />Number' <br />Style <br />NPT <br />BSP <br />U.S. <br />metricz <br />Inches <br />mm <br />cULus4,5 <br />NYC <br />VdS <br />LPCB <br />08337 <br />VK377 <br />Pendent <br />3/4" <br />20 mm <br />11.2 <br />161.3 <br />2-5/16 <br />58.7 <br />Al W, B1 Z, <br />see Footnote 6. <br />Al <br />Al <br />B2X, A2W <br />17489 <br />VK377 <br />Pendent <br />1/2" <br />15 mm <br />11.2 <br />161.3 <br />2-5/16 <br />58.7 <br />Al <br />Al <br />Escutcheons <br />Approved Temperature Ratings <br />Approved Finishes <br />W - Standard surface -mounted escutcheons only <br />A - 155 OF (68 °C), 175 OF (79 °C), 200 OF (93 <br />1 - Brass, Chrome, White Polyester7, <br />X - Standard surface -mounted escutcheons or recessed with <br />°C), and 286 OF (141 °C) <br />Black Polyester' <br />the Micromatic Model E-1 Escutcheon. <br />B - 155 OF (68 °C), 175 OF (79 °C), and 200 <br />OF OC) <br />2 - ENT7 <br />Z - Standard surface -mounted escutcheon or recessed with <br />(93 <br />the Viking Micromatic° Model E-1, E-2, or E-3 Recessed <br />Escutcheon <br />Footnotes <br />1. Base part number shown. For complete part number, refer to Viking's current price schedule. <br />2. 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 />3. This table shows the listings and approvals available at the time of printing. Other approvals may be in process. <br />a. Listed by Underwriters Laboratories Inc. for use in the U.S. and Canada. <br />5. cULus-Listed only for use in wet pipe sprinkler systems (or preaction systems qualifying as wet systems). <br />e. Meets New York City requirements, effective July 1, 2008. <br />7. cULus Listed as corrosion -resistant. <br />I DESIGN CRITERIA - UL I <br />Also refer to the Approval Chart above <br />cULus Listing Requirements: <br />Quick Response Extra -Large Orifice Pendent Sprinkler VK377 is cULus Listed for installation in accordance with the latest edition of NFPA 13 for <br />standard pendent spray sprinklers: <br />• Designed for use in hazard occupancies up to and including Ordinary Hazard Group II with a minimum operating pressure of 7 psi (0.5 bar). <br />• Also cULus Listed for use in High -Piled Storage Occupancies as defined in NFPA 13 with a minimum operating pressure of 7 psi (0.5 bar). <br />• Listed only for use in wet pipe sprinkler systems (or preaction systems qualifying as wet systems). <br />• The sprinkler installation and obstruction rules contained in NFPA 13 for standard spray pendent sprinklers must be followed. <br />• Venting is not required. <br />IMPORTANT. Always refer to Form No. F_091699 - Care and Handling of Sprinklers. Also refer to Form No. F_080614 for general care, <br />installation, and maintenance information. Viking sprinklers are to be installed in accordance with the latest edition of Viking Technical <br />Data, the appropriate standards of NFPA, LPCB, APSAD, VdS or other similar organizations, and also with the provisions of governmental <br />codes, ordinances, and standards, whenever applicable. <br />Form No. F_030993 Rev 01 April 2023 <br />