Corrugated Pipe Machine: Single Wall vs Double Wall Explained
If you are sourcing a corrugated pipe machine, the first decision is single wall vs double wall. They produce different pipe for different applications, and the machine you choose is fixed to that product. Here is how they compare.
Single wall corrugated pipe machine
A single wall corrugated pipe making machine produces fully corrugated, flexible pipe. It suits electrical conduits, telecom ducts, harness and medical tubing. ITIB’s range covers 4.5 mm I.D. up to 65 mm O.D. across five Form models, with options such as an optional vacuum pump (V range) for demanding profiles.
Double wall corrugated pipe machine
A double wall corrugated pipe making machine produces DWC pipe — corrugated outside for ring stiffness, smooth inside for flow. It is the standard for underground drainage and sewerage. ITIB’s double wall range covers 40 mm up to 75 mm O.D. via Form 75-64 and Form 75-96.
Side-by-side: which line do you need?
| Factor | Single wall | Double wall |
| Pipe structure | Fully corrugated, flexible | Corrugated outer, smooth bore |
| Diameter range | 4.5 mm I.D. – 65 mm O.D. | 40 – 75 mm O.D. |
| Typical use | Conduits, ducts, medical, harness | Drainage, sewerage, underground |
| Form models | 15-70, 15-110, 32-52/72, 32-72/92, 65-54/74 | 75-64, 75-96 |
For a fuller technical breakdown, see single wall vs double wall corrugator.
Frequently asked questions
What is the difference between a single wall and double wall corrugated pipe machine?
A single wall machine makes flexible, fully corrugated pipe; a double wall machine makes pipe with a corrugated exterior and smooth interior bore for drainage.
Which corrugated pipe machine is best for drainage?
A double wall (DWC) machine, because the smooth inner bore improves flow while the corrugated outer wall provides ring stiffness for underground use.
