The field of application: they are installed in the radiant zones of high-temperature ethylene pyrolysis furnaces of polyethylene and polypropylene production plants.
Production technology: they are made of centrifugal cast tubes, shaped castings (bends, transitions, tees) by welding in a protective atmosphere of argon.
The materials are alloys of the type 18CR10NITI, Х25Н20, Х25Н35, Х35Н45 etc. (microalloying is available)
Outside diameter
from 49 to 226 mm
Inside diameter
from 39 to 160mm (after boring)
Internal surface cleanliness
of Ra =2,5
Cast section length
3500-5000 mm
