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    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!
Damaged Tube Stack from Bowman Oil Cooler
Damaged Tube Stack from Bowman Oil Cooler
Damaged Tube Stack from Bowman Oil Cooler
Damaged Tube Stack from Bowman Oil Cooler
Damaged Tube Stack from Bowman Oil Cooler
Damaged Tube Stack from Bowman Oil Cooler