Regarding the issue of PE lining corrosion resistance
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Medium: Straight-run gasoline, condensate oil, etc； Salts, acids, nitrocompounds, etc ； The content of salts, acids, and nitro compounds is less than 1%. Temperature: below 80 degrees. I now want to create a container; I’m not sure whether it’s feasible to use a carbon steel tank lined with PE. If that’s not possible, what material should be used instead? Seek guidance from experts!
It’s possible, but in the case of negative pressure, the strength of the bond between the lining and the wall needs to be taken into consideration
The tank is a normal-pressure container at slightly positive pressure
I don’t know how large the tank is; if it’s quite big, lining a carbon steel tank with PE might not be feasible. It would be better to change it to an epoxy resin lining.
Ordinary PE cannot withstand 80°C condensate oil; special heat-resistant PE must be used instead.
PTFE rotational molding would be better; the cost is likely to be high as well
The temperature is below 80°C – is it consistently over 70 degrees? If so, the PE lining is likely not durable
Poster: Firstly, for the PE material, our company recommends using it at temperatures below 60 degrees, as this will extend its service life (for example, brief exposure to high temperatures of 80 degrees is acceptable, but continuous exposure to temperatures between 70 and 80 degrees will affect its service life)； Also, equipment or fittings made of PE material must not come into contact with materials containing organic substances ； If the poster doesn’t mind spending money, they could consider one with a steel lining and PTFE! If the poster has any questions regarding non-metallic anti-corrosion linings, we can discuss them!