Pumping subzero liquids

[cyclopath]

Cold ethanol pumps

Hello I was curious what kind of pumps everyone’s using to transfer cold ethanol (-40C) to and from vessels. Trying to source one rated and approved for the job has been difficult. It seems this is a very specific application not commonly found in most industries. Currently using an air operated diaphragm pump. It does the job but it starts to slow after a few minutes of operation plus I don’t like the pulsating flow. Would like to switch to gear pumps or something else better suited for th…