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Welding flanged pipes

Details :
Ductile Iron Double Flanged Pipe 
1) Standard: ISO2531, BS EN545 or EN598
2) Material: special cement pipe
3) Inner cement: Ordinary Portland Cement according to ISO4179, Sulphate Resistant Cement or High Alumina Cement Mortar Lining
4) Outside coating: Zinc coating(≥130/m2) and bitumen paiting or epoxy paiting(≥70μm) according to ISO8179
5)Quality Control: Metal-graphic examination; Spectrum Analysis; Hardness Test; Tensile Test; Crush Test.
6) Size Range: DN80- DN2600
7) Length: no more than 6m 
8) Joint type: Flange, flange drilling according to EN1092
9) High strength ,lighter than cast iron, good corrosion resistance, no furring, small flow resistance, easy fixing, long life time
10) Testing: Factory inspection report, SGS inspection and the third inspection party;
11) Class Option:  K12, K9, C25, C30, C40
12)Packing:DN80-DN300 in bundles; DN350-DN2600: in bulk ship
13) Gasket: EPDM or SBR

Zhu Cheng Three—dimensional Pipeline Co., Ltd.