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flue tubes

redundant superheater tubes

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nipper15/08/2015 17:07:43
31 forum posts

I have a 5" locomotive but the superheaters have failed. There are only two anyway and I am considering not replacing them. If I decide not to replace do I leave the flue tubes as they are, block them off or put a restricter in them . Any suggestions.

julian atkins15/08/2015 18:37:59
1232 forum posts
353 photos

hi dave,

do the proper thing and replace them preferably with stainless radiant elements. if a jobs worth doing....



Boiler Bri15/08/2015 19:34:49
832 forum posts
197 photos

Hi Dave, where have they failed? Could a repair be done? If the spear head has gone this can be re done, etc


julian atkins15/08/2015 20:02:07
1232 forum posts
353 photos

it is extremely difficult to replace spearheads on copper elements because it isnt usually the spearheads that have 'gone' but the copper elements immediately adjacent and has got thin with pinholes in it. unless you cut back the elements a good way then a repair is impossible and in any event new spearheads need making as almost impossible to retrieve the old ones (how do you recover old spearheads that have been sifbronzed in place?). then you have elements that are too short and according to Jim Ewins' research in the region where the flue temperature is much lower.

so always best to do these things properly and replace completely with new. even better if replaced with stainless radiant elements.



nipper16/08/2015 09:44:21
31 forum posts

HI julian and Bri. Thanks for the comments perhaps I will replace them as there is no way they can be repaired. Best regards Dave

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