Automatic reversing and pressure self-locking Expander pipeline in-situ replacement system
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
• Automatic threaded tie rod traction enables one-button push/pull operation, reducing labor intensity by 70%.
• Lightweight quick-install locking kit at the manhole end allows single-person installation in 1 minute without heavy lifting.
Hydraulic Power Unit
Features automatic directional switching and pressure self-locking with dual overload and leakage protection.
Equipped with manual/automatic integrated solenoid valves and standard wireless remote control, enabling operators to work safely and efficiently away from the shaft opening.
Lightweight Quick-Install Locking Kit at Shaft Entry End
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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