As you can see in the video, the issues with the Bairan burner air pump have been addressed, crappy warped and leaking plastic top replaced with a 15mm thick machined billet end plate, no more air leaks, internal tolerances tightened up, pump now 20psi capable and tested to this pressure, previously struggled to make 5psi, In the video I think I said 6 bar operating pressure, meant to say 0.6 bar so apologies for that slip up, air compressor paper element air filter fitted, pump is now almost silent, pressure adjuster now made of brass, and new gauge fitted. Heat dissipating aluminum fins added to reduce pump housing temperature and extend life of the bearings.
Pump works well and will return to the client for field reliability testing.