JohanJ
Member
Posts: 229
Age: 37
Loc: Belgium
Registered on 12-11-07
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 12-01-08 09:18 PM - Post#5161
In response to Kiis
Kiis
depending on the product you want to transport you need to find the appropriate material to transport it.
SS316 is commonly used as it has very inert characteristics and is easy to maintain.
I would not be myself if I could not say BUT. So here we go, following example can help you to not think in standards: Water systems can also be made entirely out of PVC or PE.
Different studies are available to prove that these materials are OK and do not interfere woth quality, yet in GMP companies you will find the water systems in 316L.
Look at RO/CDI skids, you will see that nowadays the greater part of such a skid are made of PVC or PE, but from the point where the client deems the system GMP critical the system then changes over to SS316.
On one project we had quite a big debate with a RO/CDI supplier cause they made everything in PE/PVC till after the CDI unit. They didn't see the sense of the client's demands (specs) to have 316L as from after RO part.
So there is a difference in what is the industry standard, and what is good enough to use. I think companies rather go by general standards instead of looking into the detail of product vs transportation medium.
Luckily standards are based on experience so you can do little wrong by following them.
But as you can see nowadays, it takes a long time for a new technology to settle or even to proof that alternative methods are as good as the common standard.
I know this doesn't answer your question, but I hope it gives you a sense of technology wisdom.
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