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China ductile cast iron fittings bend/elbow with flange
Standard:EN545/ISO2531/NBR7675
PN10/PN16/PN25
FBEP/BITUMEN COATING
TAWIL EN545/ISO2531 China ductile cast iron fittings bend/elbow with flange :
Material:ductile iron Pipe Fitting;
Type: All sockets tee or All flange tee or double flange with flange branch tee;
Joint structure: Socket or Flange or mechanical joint or Push-on Joint ;
EN545/ISO2531/NBR7675 ductile iron pipe tee fittings product data:
• Joint structure >>>
• Mechanical Properties >>>
Centrifugal Cast Pipes | Fittings | ||
DN80toDN1000 | DN1100toDN2600 | ||
Tensile Strength | Min.420N/mm2 | Min.420N/mm2 | |
Elongation | Min.10% | Min.7% | Min.5% |
Proof Stress | Min.30N/mm2 | Min.300N/mm2 | |
Hardness | Max.230HB | Max.250HB | |
The proof stress shall be measured only upon special agreement and under conditions which shall be specified in the order.
• Deviation and tolerances on length>>>
The permissible deviation on the standard working length of fittings with sockets and fittings with flanges are given in table as follows:
Type of fitting | Length | Deviation(mm) |
Flanged socket | L | DN80 to DN1200 ± 25 DN1400 to DN2000 ± 35 |
Flanged spigot | ||
Collar | ||
Taper | ||
Bend90° | t | ±(15+0.03DN) |
Bend45° | t | ±(10+0.025DN) |
Bend22.5°and11.25° | t | DN80toDN1000±(10+0.02DN) DN1200toDN2000±(10+0.025DN) |
Tee | L and h | DN80toDN1200-25+50 DN1400todn2000-35+75 |
• Tolerances on manufacturing working lengths>>>
The standard tolerance on the manufacturing working lengths of all fittings with flanges in all nominal size is ±10mm On request in the order and by agreement between the manufacturer and the purchaser,smaller tolerances can be accepted but not less than: ±3mm for DN≤600and±4mm for DN≥700
• Works leak-tightness test>>>
The fitting shall be submitted at the works to a leak-tightness test,carried out either with air at a pressure of 1 par or with water at the pressure given in table as following:
Nominal size DN | Hydrostatic leck-tightness test pressure bar | |||||
Fittings | DI Pipe with weld-on or screwed-on flange | |||||
PN10 | PN16 | PN25 | PN40 | |||
80≤DN≤300 | 25 | 16 | 25 | 32 | 40 | |
350≤DN≤600 | 16 | |||||
700≤DN≤2000 | 10 | |||||
• Internal protection>>>
Spun the blast furnace cement mortar lining complying with the standard ISO4179, or we may offer special protective coating according to customers requirements.
• External Protection>>>
Metallic zinc complying with the standard ISO8179,and bitumen,or we may offer special protective coating according to the customer's requirements.
• Ductile iron pipe fittings-----BEND>>>
