Abstract

This chapter discusses some of the specific properties of fiberglass-reinforced plastics (FRP) pipe and common design problems faced by the piping designer or project engineer. FRP pipe has been shown to have outstanding chemical and corrosion resistance, temperature capabilities, and mechanical strength. Recognition of these properties has led to its widespread use in numerous industrial applications. FRP are good thermal insulators—that is, they conduct heat more slowly than metal that expands and contracts more rapidly. This information must be considered carefully to prevent any excess stress on FRP pipe or components when connections are made to metal piping systems. Tanks, steel piping, and other structures can transmit significant stresses to FRP pipe; hence, these deflections created by the non-FRP system must be compensated for by independent means. In a piping system, non-FRP lines should be anchored immediately before the FRP connection to ensure that any thermal strain is not transmitted to the FRP system.

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