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TFPI51 Page5of8 <br /> 2-7/8" DIA. _ L, <br /> 5/8±1/4" (73,0 mm) 3/4" (19,1 mm) <br /> (15,9±6,4 mm) 2.1/4" DIA. 1/4" (6,4 mm) WRENCH RECESS <br /> (END "A" USED FOR <br /> FACE OF (57,2 mm) MOUNTING 1/2" NPT MODELS) <br /> SPRINKLER PLATE <br /> FITTING <br /> 1/8" WRENCH RECESS <br /> 1.. (3,2 mm) (END "B" USED FOR <br /> ���i 3/4" NPT MODELS) <br /> ,- <br /> A/111111.1 %" FIGURE 7 <br /> W -TYPE 6 SPRINKLER <br /> WRENCH <br /> MOUNTING <br /> NPR <br /> SURFACE _• — ' <br /> WRENCH <br /> CLOSURE SERIES 1 -1/4" (31,8 mm) RECESS <br /> TY-B 3/4" (19,1 mm) <br /> FIGURE 5 girl. <br /> SERIES TY -B RECESSED PENDENT SPRINKLER ASSEMBLY <br /> TWO -PIECE 3/4 INCH TOTAL ADJUSTMENT <br /> WITH STYLE 10 RECESSED ESCUTCHEON ....5.6 K- FACTOR, 1/2 INCH NPT <br /> PUSH WRENCH <br /> IN TO ENSURE <br /> 2 -7/8" DIA. ENGAGEMENT <br /> WITH SPRINKLER <br /> 5/8±1/4" (73,0 mm) 3/4" (19,1 mm) WRENCHING AREA <br /> (15,9±6,4 mm) 2 -1/4" DIA. y 1/4" (6,4 mm) FIGURE 8 <br /> (57,2 mm) MOUNTING W-TYPE 7 RECESSED <br /> FACE OF <br /> SPRINKLER PLATE SPRINKLER WRENCH <br /> FITTING <br /> 1/8" <br /> R —_—_•a f (3,2 mm) <br /> M it W Operation <br /> A ��� The glass Bulb contains a fluid which <br /> �J' expands when exposed to heat. When <br /> MOUNTING . the rated temperature is reached, the <br /> SURFACE fluid expands sufficiently to shatter the <br /> °" - -- ' glass Bulb, allowing the sprinkler to <br /> CLOSURE SERIES 1- 5/16" (33,3 mm) activate and water to flow. <br /> TY-B 13/16" (20,6 mm) Design <br /> FIGURE 6 Criteria <br /> SERIES TY -B RECESSED PENDENT SPRINKLER ASSEMBLY <br /> WITH TWO -PIECE 3/4 INCH TOTAL ADJUSTMENT The Series TY -B Pendent and Upright <br /> STYLE 40 RECESSED ESCUTCHEON Sprinklers are intended for fire protec- <br /> 8.0 K- FACTOR, 3/4 INCH NPT tion systems designed in accordance <br /> with the standard installation rules rec- <br /> ognized by the applicable Listing or <br /> Approval agency (e.g., UL Listing is <br /> based on the requirements of NFPA <br /> 13, and FM Approval is based on the <br /> requirements of FM's Loss Prevention <br /> Data Sheets). Only the Style 10 or 40 <br /> Recessed Escutcheon, as applicable, <br /> is to be used for recessed pendent <br /> installations. <br />