Marine Growth in Stagnant Piping 1

[Mpisani]

Does anyone know of any guidance for determining expected amounts of marine growth inside normally stagnant shipboard piping that is open to seawater? I expect that the amount of growth is at least somewhat dependent on the piping material, since some materials are considered repulsive by the little critters. So, maybe I can avoid marine growth altogether with the right material?

 

[known100]

To: Mpisani;
Your posting is from 31 July 2002
Still hope to serve you with:
Copper-Nickel is probably the chosen metal.
See the links:

http://www.nidi.org/index.cfm/ci_id/10649.htm

A technical explanation can be found at:
Marine Corrosion Forum

http://www.marinecorrosionforum.org/tpjul02.htm

See Point 8.2 CuNi90/10 for sea water service.
And in a Forum we can make furher directed postings!
A good explanation in .pdf: AustralWright Metals,
10 pages (April 2001) See pages 3 & 4. Link:

http://www.australwright.com.au/DataSheets/Advice/Copper & Brass/Copper Nickels.pdf

Hope you have some "fruit" out of this.

 

[known100]

Still to: Mpisani (and hopefully many others);
CORROSION:
Just by chance I got the following very relevant link:
LaQue Center for corrosion technology Inc.
(Queries? info@laque.com)
URL:

http://www.laque.com/testing/coatings.htm

 

[thijsie]

Use a hypochlorination system.

 

[ssreese1500]

you may want to read about a growth suppression system made by a company called wilson walton.

http://www.wilsonwalton.com

 

[MP21]

Onboard our ship we use a Drewsperse chemical treatment, to kill marine growth in our saltwater piping. Drew Marine may have some figures on how much marine growth they expect in certain situations. If it's open to the saltwater, they do have marine coatings that are less expensive or as thijsie said try this.

http://www.usfilter.com/NR/rdonlyre...0-5982CF189E57/0/chloropac_marine_fouling.pdf

MP21

 

[known100]

MARINE GROWTH:

The strength of a Forum lays in the responses generated!

Many thanks to: (among others!)

thijsie (denkelijk een Hollandse jongen)
ssreese1500 and MP21

If anyone doesn't need a feedback himself, it is always worth to have an input for anyone else!
This is what I appreciate.

Cordial greetings.