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Ductile Iron Pipe and Fittings
Material Properties

 

Materials - Fittings

Fittings manufactured from Ductile Iron (minimum grade 400MPa / 12% elongation) with a maximum hardness of 250 Hardness Brinell (HB).
 

Materials - Pipe

Fittings manufactured from Ductile Iron - Grade 420MPa / 10% elongation with a maximum hardness
of 230 Hardness Brinell (HB). 
 

Allowable Pressure Ratings

Allowable pressure ratings table for fittings used within a PN20 or PN35 pipeline with integral joints.
 
DN
Allowable Operating Pressure – Mpa
Allowable Maximum Operating Pressure – Mpa
Allowable Site Test Pressure - MPa
100 – 750
3.5
4.2
4.38
100 – 750
2.0
2.4
2.50
 
Allowable pressure ratings table for fittings used within a PN35 pipeline with flange joints.
 
Flange to AS4087
DN
Allowable perating Pressure - MPa
Allowable  Max.  Operating Pressure – MPa
  Allowable Site Test Pressure - MPa
PN16
100 – 750
1.6
1.92
2.0
PN35
100 – 750
3.5
4.2
4.38
 
 

Effect on Potable Water

Products in contact with potable water have been tested and comply with the requirements of AS/NZS4020 for products in contact with drinking water.

 

 



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