1 10 benzene pipe repair a leakage occurred at a carbon steel pipe carrying benzene at a refinery in...

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10” Benzene pipe repair

A leakage occurred at a carbon steel pipe carrying benzene at a refinery in the Netherlands during Christmas (25.12.). The benzene squirted out of a 10” Ø carbon steel pipe from a hole of the size of 1 mm Ø with a pressure of more than 10 bar close (~ 20 mm) to the pipe-support.

(No pictures of squirting leak for safety reasons)

Pipe-support on sleeper

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10” Benzene pipe repair

All following procedures have been carried out after the shut down of the facility (that means no pressure in the pipe system). The leak was first closed with a piece of Viton rubber glued on a 100 x 100 x 2 mm steel plate, generously filled with MM-metal oL-steelceramic & Hardener red, positioned over the hole and fixed with a Bandit® strap...

Cured “volcano shaped” ridge to create a seating for the viton

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10” Benzene pipe repair

...and generously covered with a thick layer of MM-metal oL-steelceramic but now mixed with Hardener yellow.

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10” Benzene pipe repair

During the Christmas holydays the pipe was put back into service, while a reinforcement box (called mini box) was pre-fabricated at EMHA’s workshop.

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10” Benzene pipe repair

On the 4th of January the mini box was mounted over the small plate and fixed with Bandits® to the pipe and its support.

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10” Benzene pipe repair

All seams were closed with MM-metal SS-steel & Hardener red for a fast cure.

Between pipe and mini box a closed cell neoprene rubber foam was glued.

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10” Benzene pipe repair

port of injection

deaeration port

After curing the box was injected with MM-metal SS-steel & Hardener yellow for a more gentle cure and twice the strength. For injection the liquid version of this PolymerMetal is used.

deaeration port

spare port

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Technical Data Sheet MM-metal oL-steelceramic

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MM-metal oL-steelceramic

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Technical Data Sheet MM-metal SS-steel

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PolymerMetall® made by MultiMetall

MultiMetall Germany invests for more than 30 years in polymer-metallic material technologies for the maintenance of metals and alloys. In plants and constructions often functional particularly important components are exposed to stresses like break, tear, corrosion, cavitation, chemical or thermal demands.

Components treated with PolymerMetals can be preventatively protected against above mentioned stresses. Furthermore MultiMetall’s cold repair technology facilitates a gentle material treatment and a durable repair of damaged parts.

MultiMetallthe MetalExistenceCompany®

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MultiMetall & Internet

Please feel free to visit our website! At www.polymermetal.com detailed information on our products and their usage can be found.

Here are some screenshots of our website:

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PolymerMetall® • MultiMetall® • Ceramium® • Molymetall® • Sealium® • XETEX®

Essential parts of this publication are based on the presentation and information, kindly provided by EMHA technisch bureau b.v..

EMHA technisch bureau b.v. is our exclusive partner in the Netherlands, who successfully carries out repairs by using our PolymerMetals for many years.

EMHA technisch bureau b.v.P.O. Box 542980 AB RidderkerkNetherlands

Tel: +31-18 04 84 34 3Fax: +31-18 04 18 58 1info@emhabv.comwww.emhabv.com

MultiMetallP.O. Box 12 02 6441720 ViersenGermany

Tel: 0 21 62-97 00 9-0Fax: 0 21 62-97 00 9-11info@polymermetal.comwww.polymermetal.com

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