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09-28-2012, 02:35 AM #1
inverted trap on top of suction risers
Good evening to everyone.
I`m quite familiar with the use and purpose of oil traps at the bottom of suction risers, and every other 15 feet, in order to make sure the oil returns to the compressor. What I did not know was that at the TOP of the suction risers, I should install an inverted "p"trap. I just saw this in the photographs of the installation of a walk-in that appear in a website. Is that correct? If so, what should be the purpose of it? Thank you for any explanation.