PED - Simple Pressure Vessel discrepancy

[wrjohnst]

I am attempting to determine if a tank (pressure vessel) that I am shipping to Europe needs to be CE Marked. The volume of the tank is 95 liters. It will be charged to a pressure of 6.2 bars. The contents will be a silicon-water mixture.

The Simple Pressure Vessel Directive 87/404/EEC Article 3.1 indicates that the vessel should be CE Marked if it exceeds 50 bar-liter. Bar-liter is detemined by multiplying the tanks volume by its pressure. My tank will be 95x6.2 = 589 bar-liter. The Pressure Equipment Directive (PED) 97/23/EC Article 3.1.1.(b) indates that the tank does not have to be CE Marked because it contains a non-toxic fluid <10,000 bar-liter.

Are there any suggestions on how to resolve this issue? Do I need a CE Marked tank? If I do not need the CE Mark, I will not get it because this is a special tank and I am not aware of any manufactures in the USA that will supply a CE Tank like this.

Thank You,
Bill Johnston

 

[prex]

If your vessel is 100% full of liquid (no gas pocket) and the vapour pressure at the maximum allowable temperature of equipment is not more than 0.5 barg, then CE marking is not required: the vessel is classified as SEP (Sound Engineering Practice) category, and it only needs to be accompanied by adequate instructions for use and to be marked to permit identification of an authorized representative in the EC.
Simple pressure vessels are limited to the containment of air or nitrogen (or liquids at low temperature with air or nitrogen pocket). prex
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