Thanks to JJPellin and u0406346 for your advice. The seal is on a 35mm dia shaft, running at 300-400 rev/min. I believe that the seal has a pumping ring, but it will not be very effective below 1000 rev/min. so we are relying on the thermo-syphon for oil circulation. We did consider circulation...
I am looking for some advice regarding the installation of an API Plan 53A system. We have a vertical mounted in-line mixer operating at 3 bar. The mixer is blending food flavouring and colourant into a fat and sugar slurry. The original single seals with an atmospheric static oil quench...