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Technical Specifications <br />Style: Flat Concealed Pendent <br />Threads: 1/2" NPT or ISO 7-1 R1/2 <br />Nominal K-Factor: 4.9 (71 metric) <br />Max. Working Pressure: 175 psi (12 bar) <br />Min. Spacing: 8 ft. (2.4 m) <br />Material Specifications <br />Thermal Sensor: Nickel Alloy Solder Link <br />Sprinkler Body: Brass Alloy <br />Levers: Bronze Alloy <br />Yoke: Brass Alloy <br />Sealing Assembly: Nickel Alloy with PTFE <br />Load Screw: Bronze Alloy <br />Towers: Copper Alloy <br />Pins: Stainless Steel <br />Deflector: Bronze Alloy <br />Cup: Steel <br />Sensitivity <br />Fast -response <br />Temperature Rating <br />Ordinary: <br />165°F (74°C) sprinkler <br />135OF (57°C) cover plate <br />Intermediate: <br />212OF (100°C) sprinkler <br />165OF (74°C) cover plate <br />Cover Plate <br />Model RFC cover plate <br />Sprinkler Wrench <br />Model FC (without wrench -able cap) <br />Model W3 (with wrench -able cap) Bottom View <br />Cover Plate Finishes Listings and Approvals <br />cULus Listed to UL 1626 <br />(See Table H) cULus Certified for Health Effects to NSF/ANSI <br />Standard 61 Annex G (RFC49LL only) <br />Watermark Certified (RFC49LL onlv) <br />Model RFC49 & RFC49LL Sprinkler Components and Dimensions <br />Threads <br />Body = <br />Cup <br />Tower <br />Fusible Link <br />Deflector (retracted) <br />Pin (extended) <br />Deflector (extended) <br />1-3/4" (44 mm) +/- 1/4" (6 mm) <br />Nominal face of fitting to ceiling <br />Model RFC Cover Plate <br />Model RFC49 & RFC49LL Sprinkler Hydraulic Design Criteria <br />2-5/16" (58 mm) <br />Dia. <br />3-5/16" (84 mm) Dia. <br />3/16" (5 mm; <br />Ceiling <br />Minimum Flow and Residual Pressure M <br />Max. Coverage Area (2) <br />Ordinary Temperature <br />Intermediate Temperature <br />Flow <br />Pressure <br />Flow <br />Pressure <br />ft. x ft. <br />(m x m) <br />gpm <br />psi <br />gpm <br />psi <br />(1/min) <br />(bar) <br />(1/min) <br />(bar) <br />16 x 16 <br />13 <br />7.0 <br />13 <br />7.0 <br />(4.9 x 4.9) <br />(49.0) <br />(0.48) <br />(49.0) <br />(0.48) <br />18 x 18 <br />17 <br />12.0 <br />17 <br />12.0 <br />(5.5 x 5.5) <br />(64.3) <br />(0.83) <br />(64.3) <br />(0.83) <br />20 x 20 <br />20 <br />16.7 <br />21 <br />18.4 <br />(6.1 x6.1) <br />(75.7) <br />(1.15) <br />(79.5) <br />(1.27) <br />Notes: <br />1. For NFPA 13 installations the flow per sprinkler must be the greater of: (1) the flow listed in Table D above and (2) the flow required to <br />achieve a minimum design density of 0.1 gpm/sq ft over the design area of the sprinkler. <br />2. For coverage area dimensions less than those listed above, use the minimum required flow for the next larger max. coverage area listed. <br />Bulletin 006 ellablPage 4 of 8 <br />' <br />May 2019 www.reliablesprinkler.com <br />