Our ductile iron fittings are produced with vacuum lost foam Process according to standard ISO2531 EN545 and EN598.
Advantages of vacuum lost foam technique:
a) Higher productivity and faster delivery.
b) The castings have excellent finish with much less pinhole or blowhole.
c) With even thickness.
d) Maintains high dimensional accuracy, which is so vital for the leak-tightness.
e) Any combination and length of fittings can be more flexible.
1. Chemical Analysis
2. Mechanical Properties
|Item||Tensile Strength (N/mm2)||Elongation (%)||Hardness(HB)|
|Fitting||≥ 420||≥ 5||≤250|
3. Standard Ductile Iron Fitting Types:
|No.||Ductile Iron Fitting Type||Graph|
|4||Double Socket Bend|
|5||All Socket Tee|
|6||Double Socket Tee with Flanged Branch|
|7||Double Socket Taper|
|8||Double Flanged Bend|
|9||All Flanged Tee|
|10||Double Flanged Taper|
|12||Socket Flanged Taper|
|13||Socket Spigot Bend|
|14||Flange Socket Cross|
|15||All Flanged Cross|
Note: For non-standard or special fittings, welcome contact us for more information!
4. Minimum Works Hydrostatic Test Pressure （unit: Bar, during time: 10s）
|Pressure||25 bar||16 Bar||10bar|
Packing and transportation of Ductile Iron Fittings:
Compared with ductile iron pipes storage and transportation, Fittings are much easier.
If Fittings size≤DN300, we arrange packing in timber cage or wooden cartons. For those ≥DN300, we arrange packing in wooden pallets.
SLR has also introduced fittings with Adjustable Flange or Loose Flange. in this case, separately cast loose Flanges can be freely rotated around the axis of the fittings.
As it can be fixed and removed easily, dismantling of adjoining accessories becomes easier. Angles can be adjusted.
The PN rating of the Fittings can be changed at will, just by changing the loose flange.
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