After only 2 years a leak occurred on a 3/4" seamless carbon pipe (schedule 40) carrying ammonia liquid and gas.
The pipe is insulated with pre-moulded pu and the cladding are with plastic tape. The pipe wills every 4 hours be cold (-25 dg C/-13 dg F) for approx 3 min, chilled (5 dg C/42...