Custom Fabric Expansion Joints for Exhausts, Pipes, and Engines from Bellis Australia

Custom fabric expansion joints are primarily used to handle ducts that expand or contract when subjected to sudden temperature changes, whether from the duct itself or an irregular external temperature. With the ability to absorb large amounts of movement, fabric expansion joints are commonly utilised when hot media is at risk of seizing in low-pressure applications, and typically in large combustion processes. As for high-temperature duct applications or pipework, custom fabric expansion joints are ideal.

This kind of expansion joint consists of two essential components: a fabric gas seal and metal frames. The fabric gas seal is like a closed belt, with its edges attached around the metal frames, and connected to the end of the duct. This fabric loop transforms as the ducting moves. For some cases, additional components such as insulation pillows, accumulation barriers, and flow liners are also used to prevent tearing or leaking of the fabric when exposed to corrosive media.

Bellis Australia, with more than 30 years of expertise in manufacturing custom insulation products, supplies custom fabric expansion joints for exhaust systems, pipes, and engines. Metal, rubber, or fabric expansion joints can be used depending on the thermal requirements. Bellis also produces fabric expansion joints and seals for bellows or other soft items, which require the same movement and resilience provided by rubber, or fabric.

Specifying custom fabric expansion joints entails important factors such as operating temperatures, linear and axial movement, gas composition, and operating pressure. Apart from custom applications, Bellis Australia's industrial sewing staff provide comprehensive support including assisting customers in attaining the desired results regarding the performance of their expansion joints.

Bellis also offers removable mat covers available for hook and loop fastening or fastening with stainless steel pins or SPRI. When a typical pipe insulation system is not suitable for an intricate application, this removable cover offers insulation that allows access as desired. This mat can be personalized and installed on site if required.

To find out more about custom fabric expansion joints and other insulation products, contact Bellis Australia today or visit www.bellis.com.au.