Volume-IF - JantERmantER

DCPl-K9AOl
2.5.7 steel Rue
a) All mild steel material to be used in construction of steel flue, shall
comply with 15:2062, 15:1239,15:1367, 15:1608, 15:800 and with other
relevant IS 5pec1flCllllons. The ultimate tensile strength of this steel
shall notbe less than 410 NISq.mm.
b) Stainless steel liners shall be fabric:ated using materials conforming to
the requirements of relevant IS Specifications and/or AISI 316l or
85:1449 Part-2. Gredeof S1a1ntess steel shall be equivalent to
85:1449 (Part-2) 3165.12. '
c) Materials to be used for fabrication of Flue expansion compensator
shall be 'sultable for the flue gas tempeeture and shall be acid resisting,
The expansion compensator shall comprise severa! layers of
maieI1aIs gillen below in order from the gas side.
. .
Ij
Two. layer of insulation, each consisting of heavy weight
texturized glass cloth Impregnated with graphite suspension,
having an approximate weight of 1.00 KgISq.m
• iI)
A continuous filament glass cloth coated both sides with a
fIouro-elastomer having an approximate weight of 1.5
KglSq.m. '
Two layers of PTFE (Poly Tetra Fiouro-Ethylene) film of
minimum thickness 0.15 mm each.
Iv)
A layer of glass felt of minimum thickness 10 mm and an
approximala weight of 1.5 Kg/Sq.M.'
2.5.S
Paints
Paints to be used for shop