What Anti corrosion inhibitor


Postby dobbin » Tue Sep 08, 2009 9:10 am

I have just about finished installing my new central heating system which will use a Worcester Bosch Greenstar 30CDi as the 'power source'. The system is piped with copper pipe and prior to the gas engineer coming to connect up the gas and test etc I was having a looking about to see what inhibitor to use. Confused with such a choice from cheap diy store products to high end manufacturers I was looking for some suggestions as to what is the best / most cost effective product to opt for. Incidentally I will be carrying out a pressure test on the system and wonder if I should use just normal water or should I add an additive. The system wil be drained down after testing awaiting final commissioning in around 2 - 3 weeks time. Any recommendations? Radiators are Myson premier Compacts in case this makes a difference. Many thanks in advance for any help given.
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Postby carrspaints » Sat Sep 12, 2009 5:03 pm

Ideally you would need a corrosion inhibitor that contains Molybdate 9Best for yelloe metals such as copper). There are many inhibitors on the market - just look for one that contains Molybdate or Molybdenum - some of these products are a combination of Molbdate and Nitrite.
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Postby uk_ducati » Sat Sep 12, 2009 8:15 pm

hi
i would personally do the pressure test dry. saves filling up with water and then emptying and then rust starting.
also use something like fernox or setinel. these are good makes and we are really only talking the difference of £5.00 from low end products to the 'named' brands

hope this helps

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