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StandardModel G5-28 . <br /> Technical Specifications Sprinkler Temperature Ratings <br /> Style:Flat Concealed Pendent 165°F(74°C) <br /> Threads:1/2"NPT or ISO 7-1 R1/2 212°F(100°C) <br /> Nominal K-Factor:2.8(40 metric) Sensitivity <br /> Max.Working Pressure:175 psi(12 bar) (See Table B) <br /> Material Specifications Cover Plates <br /> Fusible Link:Beryllium Nickel Model G5 <br /> Sprinkler Body:Brass Alloy Model G5 QR Gasket(cULus only) <br /> Levers:Bronze Alloy Model G5 SR Gasket <<`e <br /> Yoke:Brass Alloy Cover Plate Finishes <br /> Sealing washer:Nickel with PTFE (See Table 1) <br /> Load Screw:Bronze Alloy <br /> Towers:Copper Alloy Sprinkler Wrench fTr <br /> Pins:Stainless Steel Model W3 <br /> Deflector:Bronze Alloy <br /> Model FC ~� <br /> Cup:Steel Listings and Approvals <br /> cULus Listed(Light Hazard only) <br /> FM Approved <br /> Model G5-28 Sprinkler Components and Dimensions <br /> 2-5/16" <br /> (58 mm) <br /> Dia. <br /> Threads <br /> Body <br /> Cup <br /> Ceiling <br /> Tower <br /> Fusible Link 3/4"(19 mm)Max. - <br /> Deflector(retracted) , Cover Plate Adjustment 3/16"(5 mm) <br /> Pin(extended) <br /> Deflector(extended) <br /> Model G4/G5 Cover Plate 3-5/16"(84 mm)Dia. Ceiling <br /> Model G5-28 Sprinkler Sensitivity F1.011 rm: <br /> Listing or Approval Agency <br /> Cover Plate Model <br /> cULus FM <br /> G5 QR SR 7 <br /> G5 QR Gasket OR <br /> G5 SR Gasket SR SR <br /> QR: Quick-response <br /> SR:Standard-response <br /> Bulletin 034 Reliable Page 2 of 9 <br /> February 2021 www.reliablesprinkler.com <br />