Field of application: they are installed in the radiant zones of high-temperature reforming furnaces of ammonia production plants.
The reaction furnace coils for the reforming ammonia plants.
Manufacturing technology includes manufacture from centrifugal cast tubes, shaped castings (Cones, supports, flanges, tees) by welding in a protective atmosphere of argon.
The materials are alloys of the type 18CR10NITI, Х25Н20, Х25Н35, (microalloying is available)
Outside diameter
from 105 to 160 mm
Inside diameter
from 95 to 150 mm (after boring)
Internal surface cleanliness
of Ra = 2,5
Cast section length
3500-5000 mm
Operating temperature
from 600 to 950 ˚С
Weight of the coil in the furnace
from 130 000 to 160 000 kg
Service life
about 10-15 years (100 000 - 150 000 hours)
