A heat exchanger and pipe for use in a heat exchanger.

摘要

A heat exchanger comprises a vessel 5a bound by a plastics wall 5 having longitudinal channels 8 opening at each end into a space 9, each space being connected with a stub 17 for feeding and discharging a second fluid. The vessel 5a is connected with an upper and a lower connecting stub 14 for feeding a first fluid into and discharging said first fluid from said vessel 5a. The wall 5 of a thermoplastics material such as PVC, comprises longitudinal channels 8 and is made of a tube comprising longitudinal channels 8.