Our Services

We provide spiral wound lining to rehabilitate/repair pipes of diameters ranging from 375mm dia to 2500mm dia . Spiral wound lining is currently a trenchless method of repairing large diameter pipes. The Sekisui SPR method consists of a rigid PVC profile which is spirally wound into an exisitng pipeline. Successive wraps of profile are locked together and the annular space between the liner and the existing pipe is grouted. The result is a strong composite pipe integrated with the existing pipeline.

Two winding methods can be used depending on the site conditions. These are the "pushing" machine and the"Self-Winding" machine winding method.

For more information, please email us at info@tbseng.com

The fundamental steps of the SPR method are:

• Cleaning of host pipe
• Winding the liner and
• Grouting the annular space

Before Spiral Wound Lining (SPR)		After Spiral Wound Lining (SPR)

Features of Spiral Wound Lining:

• Profile Liner
  - Excellent water tightness
  - Corrosion & Abrasion Resistant
  - Product a Tough Composite Pipe
  - Earthquake Resistant
  - Long Life
  
• Winding Machine
  - Can line long lengths
  - Able to rehabilitate any pipe shape
  - Machines use existing access chamber
  
• Installation
  - Lining can take place when there is some flow in existing pipe
  - Adaptable to existing pipe conditions. Eg. Bends
  - Economical as compared to excavation repair works
  - Joint free lining from a continuous strip of profile