CORRUGATED TUBE


Outline
Corrugated tube has many spiral projections on the inner and outer surface of the tube. The coefficient for overall heat transfer has been remarkably improved because of the turbulent flow effect on the inner surface and outer surface of the tube caused by the corrugation, in comparison with that for smooth tubes.

Pipe CORRUGATED TUBE


Features
  • The inside heat transfer coefficient and the overall heat transfer coefficient have been improved by more than two times and more than 1.5 times respectively, in comparison to smooth tubes.
  • A great variety of products is available.

Use
Absorption type refrigerator, turbo refrigerator and screw refrigerators; distillation facility with multiple effects.

Specifications
Outside diameter: 9.52 mm, 25.4 mm
Wall thickness: 0.4 - 2.4 mm
Length: 15 m or less
Corrugation pitch: 4 - 9 mm
Material: C1220, Carbon steel, Stainless steel, Titanium
and others

Heat transfer characteristics
Inside heat transfer coefficeient
Overall heat transfer coefficient
Test condition
Inside : Cooling water (Ave. temp. 18 oC)
Outside : Steam condensation at 33 oC
Dimension of Test tubes
Symbol of
test tube
Plain section
dimension
Corrugated section
dimension
Material
Outside diameter
d (mm)
Wall thickness
Xp (mm)
Pitch
P (mm)
Depth
(mm)
A 19.05 0.8 9.4 0.9 Copper
B 19.05 0.8 9.0 0.5
C 19.05 0.8 11.9 0.3
D 19.05 0.8 - -
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