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Thread: PHE evaporators
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04-03-2023, 10:38 PM #1
PHE evaporators
Hi Everyone,
I'm new to this platform and feel privileged to be amongst you all.
I have just come across a flooded PHE evaporator used to remove heat from process cooling water reticulated at a dairy factory. What surprises me is this: there are no isolation valves between the suction accumulator/LP separator and the PHE which mean, whenever the PHE leaks the entire ammonia refrigerant charge needs to be decanted into a mobile storage tank as there is no ammonia receiver on site. Is this a common modern piping system these days or am I too old fashioned? I would really like to know your opinions. Thanks.