Procurement Of Expansion Joint Expansion Joint , Stainless Steel Metallic Expansion Joint 1410 X 1410 X 200 Mm , Circular / Rectangular , Style-1 , With Inner Sleeve Of 6Mm Thick , In Ready To Fit Condition , Suitable For Unit-1 To 6 Primary Air Duct Of Cpp , Nalco . Bellow Material - Ss 304 , 1 . 5 Mm Thick , End Connection And Inner Sleeve With 6 Mm Ms Is 2062 Gr . A Plate . Operating Temp . - 330 Degree C , Pressure - 1200 Mm Wcl , Medium: Primary Air With Ash From Aph . , Stainless Steel Metallic Expansion Joint 1170 X 1170 X 250 Mm , Circular / Rectangular , Style-2 , With Inner Sleeve Of 6Mm Thick , Suitable For Unit-1 To 8 Primary Air Duct Of Nalco Cpp . Bellow Material - Ss 304 , 1 . 5 Mm Thick , End Connection And Inner Sleeve With 6 Mm Ms Is 2062 Gr . A Plate , Overall Length: 250 Mm . Operating Temp . - 330 Degree C , Pressure - 1200 Mm Wcl , Medium: Primary Air With Ash From Aph . , Saw Tooth Expansion Joint , Size: 2610 X 1610 X 250 Mm , Style-03 With Inner Sleeve Of 6Mm Thick , For Secondary Air Ducts From Aph O / L To Wind Box Of Unit - 1 To 6 , Cpp , Nalco Bellow Material - Is 513 , 3 . 15 Mm Thick , End Connection And Inner Sleeve With 6 Mm Ms Is 2062 Gr . A Plate , Overall Length: 250 Mm . Medium: Seconadry Air With Ash From Aph O / L , Pr: 400 Mmwc , Temp:400 Deg Centigrade End Connection: Butt Welded . , Non Metallic Expansion Joints ( Fabric ) Size:1170X1170x250 Mm For Hot Primary Air Ducts Of Unit-1 To 6 , Cpp , Nalco . Medium: Hot Primary Air With Ash , Pressure: 1200 Mmwc , Temperature Of Medium: 400 Deg Centigrade , End Connection: Butt Welded . The Complete Assy Consists Of 3 Part: ( A ) Metallic Frame- 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 , 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 .
