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RECOMMENDED EXPOSED MINIMUM BARREL LENGTH WHEN CONNECTED TO WET PIPE SPRINKLER SYSTEM <br /> (DRY PENDENT SPRINKLER WITH STANDARD ESCUTCHEON SHOWN) <br /> MET PPE <br /> EXPOSED BARREL <br /> AMBIENT AMBIENT TEMPERATURE .—..tel , ,..._ <br /> DPOSED.lEMPERMUR IOF/4'O 150F/10'C I 807/18'0 �f f��. f f f <br /> ISS •D EIPOSFD MINIMUM BARREL LENGTH** M��� =1 � <br /> (PNCE OF FITTING TO TOP OF CEJNGN•• �'......,., `i <br /> MI.(MM) IN.(MM) IN.(MM) rillIF HUMIDITY AND TEMPERATURE DIFFERENTIAL <br /> 407(4C) 0 0 0 CAUSES CONDENSATION ON THE EXPOSED DRY <br /> SPRINKLER,CONSIDER WRAPPING THE EXPOSED <br /> 307(-i C) 0 0 0 Milli SPRINKLER. <br /> WITH INSULATION.FOAM INSULATING <br /> 20F(-TC) 4(100) 0 0 TAPE OR EQUNALENT. <br /> 10F(-12C) a(200) 1 (25) 0 <br /> OF(-18'C) 12(300) 3(75) 0 MINIMUM (HEATED AREA) SEAL THE CLEARANCE SPACE <br /> EXPOSED <br /> -10F(-23C) 14(350) 4(100) i(25) BA AROUND THE SPRINKLER TO AVOID <br /> LEAKAGE OF MR INTO THE PROTECTED <br /> -20F(-29C) 14(350) 6(150) 3(75) LOOM AREA AND CONSEQUENT FORMATION OF <br /> CONDENSATE AMID?THE FRAME,WHICH <br /> -30F(-34C) 16(400) 8(200) 4(100) COULD INHIBIT OPERA11ON OR CAUSE <br /> PREMATURE OPERATON.SEE BELOW FOR <br /> -40P(-40C) 18(450) 8(200) 4(100) •A• ANCE RECOMMENDED METHODS <br /> CtEAR <br /> -507(-46C) 20(500) 10(250) 6(150) DIMENSION HOLE II <br /> -50F(-sIC) 20(500) 10(250) 6(iso) <br /> •FOR AMBIENT TEMPERATURES EXPOSED TO THE DISCHARGE <br /> END CF 11€SPRINKLER THAT OCCUR BETWEEN THE VALUES <br /> LISTED.USE THE NEM COOLER TEMPERATURE V <br /> A II i j <br /> ����••THE MINIMUM EXPOSED BARREL LENGTH IS NOT THE SAME <br /> AS THE•A•DIMENSION.THE MINIMUM EXPOSED BARREL ' <br /> LENGTH IS BASED ON A PROPERLY SEALED PENETRATION WITH _— <br /> A MAXIMUM MIND VELOCITY PN THE EXPOSED SPRINKLER OF <br /> 30 MPH(48 KM/H).LONGEXPOSED BARREL LENGTHS WILL Y E EON <br /> HELP AVOID FREE%MIO ER OF THE MET PIPING MERE HIGHER CEILING I�II <br /> WIND VELOCITY IS EXPECTED. I{Of <br /> w EX <br /> THE MINIMUM POSED BARREL LENGTH IS MEASURED (PROTECTED AREA) kilo' DISCHARGE END OF SPRINKLER <br /> FROM THE FACE OF TIE FITTING TO THE INSIDE FACE OF THE <br /> WALL FOR DRY HORIZONTAL SIDEWALL SPRINKLERS. ---;•DU, <br /> RECOMMENDED EXPOSED MINIMUM BARREL LENGTHS ALSO APPLY TO DRY HORIZONTAL SIDEWALL SPRINKLERS <br /> RECOMMENDED DRY SPRINKLER SEAL ARRANGEMENTS <br /> VET PIPE (DRY SPRINKLER WITH STANDARD ESCUTCHEON SHOWN) NET PIPE <br /> if�` � 1 ���f I` 'il` �� <br /> 1;1 . `i . 1=0. I <br /> r"n-..1 <br /> It <br /> MINIMUM MINIMUM(LHEMMED AREA) (HEATS)AREA) El'I MMXM <br /> EXP <br /> EXPOSED OSED <br /> BARREL BARREL <br /> LENGTH DECKTTE FLASHING INSIDE FACESEAL LENGTH <br /> (ME ABOVE) (RECOMMENDED) =IASCO;4003910 \ (SEE ABOVE) <br /> CLEARANCE HOLE - <br /> INSULATED MEIER. <br /> CO COOLER STRUCTURE • = <br /> OR EXTERIOR FRAMING <br /> 'I///// / I <br /> __ <br /> L�� s!— <br /> (PROTECTED AREA) I�II I DISCHARGE RY DID OF (PROTECTED AREA) 1110411 <br /> ( DD SEND OF <br /> DqA0IN COLD AREA kn.; IN COLD AREA <br /> 157FG10C <br /> Fig, 10 <br /> 13. <br />