Procurement Of Non Metallic Expansion Joint Non Metallic Expansion Joint , Non Metallic ( Fabric ) Expansion Joints Size: 2448 X 1839 X 200 Mm With Inner Sleeve Of 6Mm Thick , For Primary Air Duct After Air Preheaters Of Unit-1 To 6 , Cpp , Nalco . Medium: Hot Primary Air With Ash , Pressure: 1400 Mmwc , Temperature Of Medium: 400 Deg Centigrade , End Connection: Butt Welded . The Complete Assy Consists Of 3 Part: ( A ) Metallic Frame With Inner Sleeve- Rectangular All Side Metallic Frame Structure With Flange At Both Upper & Lower End To Securely Hold The Composite Fabric Assy At One End & Duct At Other End . End Coinnection- But Welded , Frame Material - Steel As Per Is-2062 Gr-A / B , Thickness- 6 Mm , Inner Sleeve Material - 6 Mm Thick Steel As Per Is-2062 , Smoke Grey Painted ( B ) Composite Fabric- Fabric Shall Comprise Following 5 Layers From Inside To Outside ( 1 ) 1St Layer- One Layer Of Treated Glass Fabic Weight 650G / Sqm Min As Per Astm-D-1777 , Thickness 0 . 65 As Per Astm-D3776 , Tensile Strength & Elongation As Per Din-53857-1 . ( 2 ) 2Nd-One Layer Of Needle Glass Felt-1500 As Per Fwf- Test . 01 & 02 . ( 3 ) 3Rd- One Layer Of Virgin Pfte Foil As Per Astm D-1777 , 3776 , Din-53455-5-4 . ( 4 ) One Layer Of Elastomer Coated Glass Fabric . ( 5 ) One Layer Of Ss Wire ( 100 Mesh ) Is-304 Mesh Parameters Of Fabric Should Be As Per Astm-D-1777 , D-3776 / D5035 & Din- 53857-1 Standard . Thickness- As Per Astm & Din Std . To Accomodate 5 Layers . ( C ) Bolster Moc Of Insulation Bolstor Consists Of 3 Layers As Per Relevant Standard 1-Ss Wire Mesh 2-Treated Glass Fabric / Cloth 3-Needled Insulation Felt . , Non Metallic ( Fabric ) Expansion Joints Size: 2628 X 3363 X 200 Mm With Inner Sleeve Of 6Mm Thick , For Secondary Air Duct After Air Preheaters Of Unit-1 To 6 , Cpp , Nalco . Medium: Hot Secondary Air With Ash , Pressure: 400 Mmwc , Temperature Of Medium: 400 Deg Centigrade , End Connection: Butt Welded . The Complete Assy Consists Of 3 Part: ( A ) Metallic Frame With Inner Sleeve- Rectangular All Side Metallic Frame Structure With Flange At Both Upper & Lower End To Securely Hold The Composite Fabric Assy At One End & Duct At Other End . End Coinnection- But Welded , Frame Material - Steel As Per Is-2062 Gr-A / B , Thickness- 6 Mm , Inner Sleeve Material - 6 Mm Thick Steel As Per Is-2062 , Smoke Grey Painted ( B ) Composite Fabric- Fabric Shall Comprise Following 5 Layers From Inside To Outside ( 1 ) 1St Layer- One Layer Of Treated Glass Fabic Weight 650G / Sqm Min As Per Astm-D-1777 , Thickness 0 . 65 As Per Astm-D3776 , Tensile Strength & Elongation As Per Din-53857-1 . ( 2 ) 2Nd-One Layer Of Needle Glass Felt-1500 As Per Fwf- Test . 01 & 02 . ( 3 ) 3Rd- One Layer Of Virgin Pfte Foil As Per Astm D-1777 , 3776 , Din-53455-5-4 . ( 4 ) One Layer Of Elastomer Coated Glass Fabric . ( 5 ) One Layer Of Ss Wire ( 100 Mesh ) Is-304 Mesh Parameters Of Fabric Should Be As Per Astm-D-1777 , D-3776 / D5035 & Din- 53857-1 Standard . Thickness- As Per Astm & Din Std . To Accomodate 5 Layers . ( C ) Bolster Moc Of Insulation Bolstor Consists Of 3 Layers As Per Relevant Standard 1-Ss Wire Mesh 2-Treated Glass Fabric / Cloth 3-Needled Insulation Felt . , Non Metallic ( Fabric ) Expansion Joints Size: 2628 X 6717 X 120 Mm With Inner Sleeve Of 6Mm Thick , For Flue Gas Duct After Air Preheaters Of Unit-1 To 6 , Cpp , Nalco . Medium: Hot Flue Gas With Ash , Pressure: ( -200 ) Mmwc , Temperature Of Medium: 200 Deg Centigrade , End Connection: Butt Welded . The Complete Assy Consists Of 3 Part: ( A ) Metallic Frame With Inner Sleeve- Rectangular All Side Metallic Frame Structure With Flange At Both Upper & Lower End To Securely Hold The Composite Fabric Assy At One End & Duct At Other End . End Coinnection- But Welded , Frame Material - Steel As Per Is-2062 Gr-A / B , Thickness- 6 Mm , Inner Sleeve Material - 6 Mm Thick Steel As Per Is-2062 , Smoke Grey Painted ( B ) Composite Fabric- Fabric Shall Comprise Following 5 Layers From Inside To Outside ( 1 ) 1St Layer- One Layer Of Treated Glass Fabic Weight 650G / Sqm Min As Per Astm-D-1777 , Thickness 0 . 65 As Per Astm-D3776 , Tensile Strength & Elongation As Per Din-53857-1 . ( 2 ) 2Nd-One Layer Of Needle Glass Felt-1500 As Per Fwf- Test . 01 & 02 . ( 3 ) 3Rd- One Layer Of Virgin Pfte Foil As Per Astm D-1777 , 3776 , Din-53455-5-4 . ( 4 ) One Layer Of Elastomer Coated Glass Fabric . ( 5 ) One Layer Of Ss Wire ( 100 Mesh ) Is-304 Mesh Parameters Of Fabric Should Be As Per Astm-D-1777 , D-3776 / D5035 & Din- 53857-1 Standard . Thickness- As Per Astm & Din Std . To Accomodate 5 Layers . ( C ) Bolster Moc Of Insulation Bolstor Consists Of 3 Layers As Per Relevant Standard 1-Ss Wire Mesh 2-Treated Glass Fabric / Cloth 3-Needled Insulation Felt .
