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BACKFILL REQUIREMENTS FOR PVC PRESSURE AND GRAVITY PIPES

PVC pressure pipe can be installed without special backfill, since external loads are not design-limiting. For PVC gravity sewer pipe, on the other hand, backfill material and compaction are key components of design.

History of Reinforced Thermoplastic Pipe (RTP) and Thermoplastic Composite pipe (TCP)

RTP pipe and RTP machinery lihe system- Initially developed in the early 1990s by Wavin Repox, Akzo Nobel and by Tubes d'Aquitaine from France, who developed the first pipes reinforced with synthetic fibre to replace medium pressure steel pipes in response to growing demand for non-corrosive conduit......

PVC Pipe Bell Direction – Sometimes It Matters

Questions about bell direction are sometimes asked by designers, installers, and operators of PVC pipelines. The questions fall into two categories: 1. Design-related – does the direction of flow in a PVC pipeline matter hydraulically? 2. Installation-related – can PVC pipe be installed by pushin......

Four Things to Know Before Specifying PE 4710 Pipe

The polyethylene pipe industry has redefined how the capabilities of their materials are determined. As a result, design engineers considering pipe made from PE4710 should be aware of the following:

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......

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