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Thanks for your reply chas 1) All component manufacturers of items which are not ABS ie pumps, valves, strainers etc have stated alkyl esters are not used during the manufatcure process 2) Woring pressure is only 1.8bar 3) I agree its look ever more likely to be a abd batch of 50mm dia pipe...

We think they may have been used in the manufacture of the cooling coils the pipework was serving, but the coil manufacturer denies using ethyl esters in their manufacture. What is strange is the only dia of pipe affected by these leaks is the 50mm dia tube which is starting us to think we may...

This link to the leading UK manufacturer of steam products and applications might help www.spiraxsarco.com

We have recently installed an ABS chilled water pipework system (7 Degrees C flow 12degrees C return) The pipework varies in size from 200mm dia down to 32mm dia. We have experienced a number joint failure problems and sent samples of the failed joints to the manufacturers 'Durapipe'. Their...

Has anyone ever had problems with installing ABS pipework in a chilled water application. We have recently installed varying pipe sizes on a complete installation ranging from 32mm dia to 200mm dia. We have had 5 joint failures (in the 50mm dia pipework only)and one failure which appeared to the...