Reinforced-plastic pipe

In general, all types of solid plastic or glass-reinforced plastic pipe should be avoided, if possible, for use with flammable liquids. Compared with metal, plastic piping ... 

While the previously described three membrane modules required flat sheet membrane material for their preparation, special membrane configurations are needed for the preparation of the tubular, capillary, and hollow fiber modules. The tubular membrane module consists of membrane tubes placed into porous stainless steel or fiber glass reinforced plastic pipes. The pressurized feed solution flows down the tube bore and the permeate is collected on the outer side of the porous support pipe, as indicated in Figure 1.33 (d). The diameters of tubular membranes are typically between 1-2.5 cm. In some modules, the membranes are cast directly on the porous pipes and in others they are prepared separately as tubes and then installed into the support pipes. 

Sterke. A. (1994), Inspection of adhesively bonded joints in glas.s-reinforced plastic pipe systems. Proc. of the Inspection Structural Composites Coni, paper no. 14. 

Testing of glass fibre reinforced plastics pipes - Flattening endurance test on pipes... 

Fiber-reinforced plastic pipe (FRP) can be produced by rotating a mixture of chopped strand and catalysed resin inside a hollow mandrel. Because... 

The chemical and pharmaceutical industries use a good deal of piping, often for the transport of aggressive fluids. The design criterion in these circumstances is usually resistance to corrosion or solvation of the pipe wall. These industries will accept high materials cost, for instance stainless steel is commonly used. Plastic materials are therefore used when they have appropriate chemical resistance or perhaps temperature tolerance. Reinforced-plastic pipes in particular are also used in the chemicals sector. 

EN 1119 Reinforced plastics pipes, fittings and valves - plastics piping systems - joints for glass-reinforced thermosetting plastics (GRP) pipes and fittings - test methods for leaktightness and resistance to damage of flexible and reduced-articulation joints. 

BS 6464, Specifications for reinforced plastic pipes, fittings andjoints for process plant, 1984. 

March 8, 1978 (UN-lOO-N-3) - A leak was detected In the spacer transfer line. The first Indication of the leak was the appearance of a 1.2-m (4-ft)-d1ameter by 76-cm (30-1n.)-deep sinkhole between the 105-N lift station and the spacer storage silos. Excavation of the sinkhole area revealed a crack In the 7.6-cm (3-1n.) reinforced plastic pipe approximately 3.4 m (11 ft) below grade. It Is estimated that approximately 1,400,000 L (360,000 gal) of Irradiated N Reactor fuel storage basin water entered the ground. Estimated radionuclide releases to the soil were Co (70 mCl), "Sr (80 mCl), Cs (250 mCl), CePr (140 mCl), and Pu (0.4 mCl). An unknown amount of soil was removed and disposed of at the 200 Area burial ground (OOE-RL 1990). 

De Sterke, A., Inspection of adhesively bonded Joints in glass-reinforced plastic pipe systems Search for NDT techniques. In Proceedings — Conference on the Inspection of Structural Composites, London, 9-10 June, 1994, Paper 14. 

Codes such as ISO 14692-2 (2002), while not directly applicable to repair, cover the conditions under which glass-reinforced plastics pipings are expected to perform in oilheld environments and hence provide guidelines for setting parameters to which composite repairs should conform. In addition, ISO 14692-2 provides valuable insight into the physical limitations of composite, be it pipelines or repairs. 

ISO, Petroleum and Natural Gas Industries-Glass-reinforced Plastics Piping, Part IV Fabrication, Installation and Operation, BS EN ISO-14692-4-2002. 

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