These three fans are for a Thai company for a waste gas installation project.
The fan cases and impellers are made from Titanium to deal with the largely chlorine gas present in the air stream, we have a seal combining PTFE and carbon ring for integrity of keeping the fan case gas tight. The fan itself is reasonably high pressure at 11Kpa.
Our welding teams are coded for Titanium amongst many other steels and alloys.
Halifax Fan – Engineering Masterpieces