Expansion couplings/ compensating couplings
Have changed out a few of these expansion couplings this year as they all seem to be failing and leaking.. just a couple pics of what me and the master plumber did.. I did all the work he just supervised he doesnt like ladders no more. Pizz poor quality fittings on coupling we were shocked its like grainy lines running through copper...
This is on dhw in a school all piping has expansion joints or loop at the same spot
We decided on propress to save time as job had to be done after 5.. in and out less than a hour...
That includes shut down of 8" main cold coming in... shut down of recircs and boiler... also bleeding air from system before turning the dhw back on.. yes i did put some rubber underneath the steel brackets after pic was taken to prevent galvanic action..
This is on dhw in a school all piping has expansion joints or loop at the same spot
We decided on propress to save time as job had to be done after 5.. in and out less than a hour...
That includes shut down of 8" main cold coming in... shut down of recircs and boiler... also bleeding air from system before turning the dhw back on.. yes i did put some rubber underneath the steel brackets after pic was taken to prevent galvanic action..
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