PE-CFL (Close Fit Lining) Method

• ∙ Continuously pull and insert an HDPE pipe through the Reducing Die into the reception pit while maintaining pulling force inside the aged pipe.
• ∙ After a certain period, remove the pulling force so the tensioned HDPE pipe contracts; the reduced diameter then expands due to elastic recovery.
• ∙ The expanded HDPE pipe closely adheres to the inner wall of the host pipe, extending the service life of the aged pipe.