Design and Engineering Guide

The Design and Engineering Guide for Polyethylene Piping defines engineering requirements deemed necessary for the safe design and construction of PolyPipe^® polyethylene piping systems. While safety is a basic consideration in this Guide, the user should be aware of other safety measures to consider in the safe installation or operation of the piping system. This Guide contains prohibitions in some areas where practice can be unintentionally easily extended into an unsafe condition, and in other areas, “flags” of caution are offered.

The Guide is intended to provide basic principles in areas of concern when designing a piping system. However, it does not replace the need for competent engineering evaluation and judgment.

The Guide contains basic reference data and formulas necessary for design of a PolyPipe^® piping system. These formulas are recognized industry standard adaptations and, in most cases, modified for ease of application to PolyPipe^® systems. It is intended to state these in terms of basic design principles to the maximum extent possible, supplemented where necessary, with examples to obtain uniform and accurate interpretation.

A comprehensive, industry consensus design guide for the proper use of polyethylene pipe is available from the Plastics Pipe Institute (PPI). The engineering handbook is available, free of charge, from the PPI website (www.plasticpipe.org).

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Design and Engineering Guide