Filter in Closed Loop System
Filter in Closed Loop System
(OP)
Can someone explain why one would need a filter in a closed loop system?
I was just involved with putting in some new equipment. The equipment is cooled by a chiller with a water/gycol mixture in a closed loop system. All the piping is PVC or stainless. The chiller manufacturer doesn't include a filter with their system but they say they recommend one. The contractor that did the piping says I don't need a filter because it's a closed loop system and the fluid is already clean.
The contractor's argument makes sense but I don't really like deviating from manufacturer's recommendations unless I have a really good reason too. Can someone point out what I'm missing? Thanks.
I was just involved with putting in some new equipment. The equipment is cooled by a chiller with a water/gycol mixture in a closed loop system. All the piping is PVC or stainless. The chiller manufacturer doesn't include a filter with their system but they say they recommend one. The contractor that did the piping says I don't need a filter because it's a closed loop system and the fluid is already clean.
The contractor's argument makes sense but I don't really like deviating from manufacturer's recommendations unless I have a really good reason too. Can someone point out what I'm missing? Thanks.





RE: Filter in Closed Loop System
You makes your choices, you take the risks
My motto: Learn something new every day
Also: There's usually a good reason why everyone does it that way
RE: Filter in Closed Loop System
RE: Filter in Closed Loop System
It the system has not been flushed at full flow with clean fluid for a reasonable time then you don't know if it is clean.
I have seen filter on high purity eater systems (sterile, closed, very clean) and they are loaded with debris over time.
Use a filter.
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Plymouth Tube
RE: Filter in Closed Loop System
RE: Filter in Closed Loop System
The chance that the contractor swabbed the interior of every tube with solvent and a lint-free cloth is essentially zero.
The chance of extended flushing removing all of the road dirt from transport of the tubes, the construction debris (and burrs) from fabrication, and the hair and dirt that falls off the contractor's people into the system, is essentially zero.
Do the math.
Mike Halloran
Pembroke Pines, FL, USA
RE: Filter in Closed Loop System