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PASSIVATION OF JOINTS OF ELECTRO POLISHED PIPES

Object of the question : To learn more as a student

Question : Does electropolished pipe require passivation after fabrication ?

GOKHALE KESHAVLAL Y.
STUDENT - AHMEDABAD, GUJARAT, India
2004

An electropolished item should be electropolished after all fabrication work is completed. If that is not practical, as may be the case with a welded piping system, passivation is better than nothing.

Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
Need quick confidential answers? $25
Need project assistance? $100/hr.
2004

There are excellent citric acid based products available that are used in tank farms and piping systems for the pharmaceutical, food and beverage industries that are safe and very effective. CIP systems are available for this purpose and are used by these industries very effectively. As always, the BEST system is to electropolish and then passivate.

Lee Kremer
Stellar Solutions, Inc.

McHenry, Illinois

2004

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