Specifications:
1) The standard of pipe: ISO 2531: 1998, K9, and EN 545: 2002.
2) Effective length: 6 m or 5.6 m for container shipping.
3) Inner cement line: Portland cement line as per ISO4179.
4) Zinc coating: At least 130gsm as per ISO 8179.
5) Bitumen painting: At least 70um as per ISO 8179.
6) With 103% quantity of NBR rubber, natural rubber, SBR rubber or EPDM rubber tightness ring as per ISO4633.
7) DN 80 - 1,600 mm.
8) High strength, lighter than gray iron, good corrosion resistance, no furring, small flow resistance, easy fixing, long life time.
9) Produced by imported equipment made in Germany, the USA, and Sweden.
10) Checked by automatic inspection equipment.
11) Composition:
A) C: 3.4 - 3.7%
B) Si: 2.0 - 2.4%
C) P: <0.08%
D) S: <0.015
12) Pull strength: >420MPa
13) Yield: >10%
14) Hardness: <230HB
15) K type mechanical joint with flange and bolts available