1000mm Concrete Diameter

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Non Pressure 3 (Np3) and Non Pressure 4 (Np4) are essential specifications for 1000mm diameter pipes, particularly in the context of Hume pipes made from precast concrete.

The length of the Hume pipes is 2.5 meters, which is equivalent to approximately 1000mm, commonly used in the construction of precast concrete structures.

115 mm

This measurement is the same for both Np3 and Np4, commonly found in 1000mm diameter pipes, including Hume pipes made from precast concrete.

Not required for Np3 & Np4 Class Pipes, including 1000mm diameter pipes and precast concrete Hume pipes.