InsaneHydraulics - Sergiy Sydorenko © 2009-2011 All Ridghts Reserved
Have a look at this nicely blown up tube stack from a Bowman water-oil
cooler. Ninety percent of Portuguese hydraulic technicians wouldn't be
able to name the correct cause of this damage pattern, while ninety
percent of, say, Norwegian hydraulic techs would immediately know what
had happened to the unlucky cooler.
Why? - Because of the climate!
Here, in Portugal, we have above zero temperatures
all year round in most industrial areas - and therefore we are not used
to seeing water freeze due to cold weather. This cooler comes from a
Portuguese raise-boring rig, operated by a Portuguese crew, which went
to work in Finland during Winter. The rig worked very well inside the
mine, where the temperature was not so low, but when it was taken
outside for transport - in one of those Finnish sub-thirty winter days -
nobody in the "tropical crew" thought of checking if there was water
left in the coolers! Apparently water hoses were arranged in a way that
the coolers remained filled with water, and when the water froze and
expanded - the brass pipes literally exploded from the inside out!
If you work with hydraulic equipment in a warm
climate country, it is very unlikely that you witnessed such
damage before - so grab this chance to see what happens when water
freezes in an oil cooler!