Pipe Liners

• Product Type: Pipe Liners / Inserts / Stiffeners
• Compatibility: MDPE pipe (20mm – 63mm)
• Material: Typically acetal or equivalent durable plastic
• Applications: Water supply, potable systems, pushfit/compression fittings

Pipe liners—also known as pipe inserts—are essential components used with MDPE pipe to maintain its shape, strength, and structural integrity, especially when used with compression or pushfit fittings. By reinforcing the pipe wall at the joint, they help ensure a secure, leak-free connection. Suitable for a range of MDPE pipe sizes from 20mm to 63mm, these liners are a vital addition to any water supply installation, particularly in potable water systems.

• Maintains roundness and internal strength of MDPE pipe
• Prevents deformation at joint points under compression
• Essential for use with pushfit and compression fittings
• Also referred to as stiffeners or inserts
• Improves long-term sealing performance and joint reliability
• Simple to install – push into the end of the pipe before fitting