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Dimension Ratio (DR) Explained For PVC Pipe

Dimension ratio is an important but often misunderstood concept for PVC pipe. Some of the confusion arises because of the use of both “Dimension Ratio” (DR) and “Standard Dimension Ratio” (SDR) in product standards. Mathematically, the concepts are simple:

The Effect of Sunlight on the Physical Properties of PVC-U Pipes

Buried pipes are protected from sunlight during their service life, but in the period prior to installation, at the manufacturer’s storage facility, the merchant’s yard, or on the intended site, any pipes and fittings left exposed are subject to weathering. The impact that this has will depend on th......

Explanation of Material / SDR Relationship

The pressure rating of pipe (PN) is determined by the diameter, wall thickness, and material types and is expressed as: PN – Pressure pipe rating at 20°C (MPa x 10)

External Load Design Calculator for PVC Pipe

The PVC Pipe Association has released an online version of its external load design program for calculating earth and live loads for PVC pipe. It follows the method outlined in the 5th edition of the Handbook of PVC Pipe Design and Construction.

Internal Pressure Design Calculator for PVC

The PVC Pipe Association has released the "Internal Pressure Design Calculator for PVC Pipe," which assists users in the design of PVC pipe for various pressure limit states.

Structural Design of Plastic Pipe Production Line

The head of PE pipe equipment adopts the most advanced basket head or spiral split pipe extrusion compound head design, which is convenient for adjustment and uniform material extrusion. The sizing sleeve adopts unique slotting process and water ring cooling to ensure the forming accuracy of pipes.

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