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FIG. 17 - TAPERED INCREASER (IPICTI) ~ _ ' _ _ _ _ _ ~/ \ 1 --__~~~~- _____ __ ___T /\ 1 1 1 \ 1 •A' ~ _ _ ~ ~ ~ ' _ _ _ I 1 1 I ~l - ---'E- 'e' ~ ~ ~- ------- -~ _ '- n . ' ~ ~ _ ~ i i _ _ ~ _ _ J ~-~ STEPS 1 2 3 4 5 6 "C" = 5" (127) 10" (254) 15" (381) 20" (508) 25" (635) 30" (762) Note: 1 step = 2" increase in Pipe Diameter CASING END CLOSURE (IPICCEC) The Casing End Closure is used to close off the annular space between the inner and outer walls when the duct is attached to a single wall com- ponent, such as a round hood collar. FIG. 18 - INSTALLED CASING END CLOSURE pPICCEC) CASING FLU INSULATION FLANGE BANI CASWG END CLOSURE PLATE SUPPORT (IPICPS) NOTE: See Table 2 for maximum supported height The plate support assembly is designed to provide maximal support to vertical sec6ons and to provide fixed-poin~.support for horizontal sections. The plate suppat must be attached to ~ie building structure w support with rigid struchual members. FIG. 19 - PLATE SUPPORT BRACING REQUIREMENTS FILLET AND BACKWELD ALL FRAMING AND BflACING MEMBERS CLAMP FLANGE PLATE SUFPORT .1 e ~ • • ~ • • ~ • _ • / ~ • • ~~ ~ ~ ~ • a ~ "X" is a minimum of 30° when bracing is used. A welded frame must be adequately attached to strvctural member for framework rigidity if bracing isn't used. Pipe lPICPS Plate Bracing for IPIC Plate Support Diameter Thickness Height of Stack 35' (10.67m) 75' (22.86m) 6" - 20" 3/16" (5) 1 1/4"x1 1/4"x1 /8" 2"x2"x1 /4" (32x32x3) (51x51x3) 22" - 36" 1/4" {6) 2"x2"x1 /8" 3"x3"x1 /4" (51 x51 x3) (76x76x6) Pipe IPICPS Plate Framework for IPIC Plate Support Diameter Thickness Height of Stack 35" (10.67m) 75' (22,86m) 6"-20" 3/16"(5) 1 3!4"x1 3/4"x1/8" 3"x2"x3/16" (44x44x3) (76x51x5) 22"-36" 1/4"(61 2°x2"x1/4" 4"x3"x1/4" (51x51x3) (102x76x3) When the supported section is subject to thermal expansion or is in a vertical position, so that the plate support is weight bearing, the support structure must be braced with diagonal members or gussets to prevent deflection of the supported joint (see FIG.19). Plate supports are usually located adjacent to fittings, such as tees or elbows, to protect the fitting from expansion stresses. Chimneys heights in excess of a single plate support capability can be resuppated with additional plate support(s). M expansion joint must be used between suppcxt points (see FIG. 20). FIG. 20 - RESUPPORT REQUIREMENTS 80° TEE - ~} `~I~ . . PLATE SUPPORT \ EXPANSION JOINT FULL ANGLE RINGS PLATE SUPPORT EXPANSION JOINT ~~. 119.6m) FULL ANGLE RINGS ~ PLATE SUPPORT ' ~- TO HOOD DRAIN TEE CAP 9