Polyethylene
Orion tanks are manufactured as standard from high density polyethylene resin conforming to
ASTMD-1248. These are held in stock and can be used at temperatures up to 180° F
in continuous service or 212° F intermittently.
Polypropylene
Custom tanks can be manufactured from polypropylene resin conforming to ASTMD-4101.
These tanks can be used at temperatures up to 212° F in contiuous service and in areas
of high chemical concentration. Polyprpylene tanks are translucent. Tank lids can be bolted or welded.
Maintainence access ports can be polypropylene threaded plugs or bolted manways. All fittings and
penetrations are polypropylene and are located according to the engineer specification.
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