Expansion PipesThermal Movement Control
316L stainless steel push-fit expansion pipes absorb the thermal movement that builds up in long runs, high-rise stacks, and hot-soil installations. The EPDM gasket—rated to 248°F (120°C)—lets the joint travel while staying sealed for both gravity and vacuum service, keeping stress off the rest of the run.

Product Specifications
Key Features
Common Applications
Expansion Pipe FAQs
Common questions about Josam Expansion Pipes
Expansion pipes accommodate thermal expansion and contraction in drainage systems, preventing stress on joints and connections.
Use expansion pipes in long pipe runs, systems with significant temperature variations, and where thermal movement must be accommodated.
Yes, expansion pipes maintain a sealed connection while allowing controlled movement to accommodate thermal changes.
Expansion pipes with EPDM gaskets withstand temperatures up to 248°F, suitable for hot soil applications.
Where Expansion Pipes Are Required
Related product types
- Stainless floor drains with PFO — connect drains directly to the push-fit system.
- Trench drains — linear collection feeding the push-fit waste line.
Common applications
- Hospitals and pharmaceutical — plenum-rated, no-weld 316L piping.
- Food & beverage processing — hot-soil-compatible, direct-burial lines.
- Hotels & resorts — fast-install drainage stacks for high-rise builds.
Need Thermal Expansion Solutions?
Plan expansion pipes into your straight runs of standard push-fit pipes, and support the system with corrosion-resistant hangers & clamps.