Thorburn's rubber ducting expansion joints are custom built and designed to provide stress relief in ducting systems by absorbing movement caused by thermal changes. Used primarily for gas sealing in ducting systems, proper selection of materials is important to ensure long term performance.

There are two basic design types for rubber ducting expansion joints, elastomeric FDR (operating temperatures under 400ºF) or composite FDC (operating temperatures above 400ºF).

• Low system design costs

• Low material costs

• No gaskets required

• Low replacement cost

• Large movements

• Low loads

• Corrosion resistant

• Sound and vibration elimination