Expander pipeline in-situ replacement system radial expansion force replacement pipeline
Product Description
The expansion method for in-place replacement utilizes specialized expansion heads to generate controlled radial expansion forces within existing pipes. This uniformly enlarges or splits the old pipe diameter while simultaneously pulling new pipe into the expanded cavity. This single-pass process completes pipe rehabilitation by “expanding and replacing” without excavation or additional working pits.
Features
Gentle Force Application: Utilizes radial expansion force rather than axial tension, subjecting manhole walls to minimal reaction forces and causing zero structural damage to chambers.
No Pipe Accumulation: Completely eliminates “pile-up” phenomena, ensuring smooth construction without pipe jamming risks.
Flexible Replacement: Supports both same-diameter replacement and one-size-up pipe diameter expansion (Up-size) to enhance flow capacity.
FAQ
Q: What is your delivery time?
A: It usually takes 20 days to produce. Within 3 days (if there is stock).
Q: How to control the quality?
A: Before shipping, we should check and test each drill rod.
Q: Do you agree to order samples?
A: Yes, we welcome your sample order to test our quality.
Q: Has your drill pipe been heat treated?
A: Yes, our heat treatment of drill pipe and casing.
Q: Does your drill pipe have anti-rust function?
A: Yes, each drill pipe and casing will be anti-rust with paint or anti-corrosion oil before transportation. If you need galvanized pipe, please contact us.
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Expander pipeline in-situ replacement system radial expansion force replacement pipeline Images
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