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Optimization of high pressure piping in reverse osmosis plants

✍ Scribed by S. Nordin; B. Ericsson; B. Wallen

Publisher
Elsevier Science
Year
1985
Tongue
English
Weight
412 KB
Volume
55
Category
Article
ISSN
0011-9164

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✦ Synopsis

When selecting materials for the high pressure piping in reverse osmosis seawater desalination plants many considerations must be made. The corrosion resistance in seawater is of outmost importance for safe and reliable service.

In this respect stainless steel UNS S31254 is fully resistant to localized corrosion under the conditions at hand whereas stainless steel AISI 316L has exhibited questionable behaviour.

An analyze of the mechanical properies shows that the superior mechanical properties of UNS $31254 makes it possible to reduce wall thickness in the highpressure section of seawater plants. Estimations of the final costs for installed piping show that the premium to be paid for using the fully corrosion resistant piping material UNS $31254 will be only about ten percent above the price for AISI 316L.

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