What is a duct rubber expansion joint?

A duct Rubber Soft Joint is a device used for flexible connection between various fans and air ducts. It is composed of rubber, rubber-fiber composite materials, steel flanges, sleeves, and thermal insulation materials. Its functions include vibration damping, noise reduction, sealing, medium resistance, ease of displacement, and convenient installation. It is an extremely ideal accessory for vibration damping, noise reduction, smoke elimination, and dust removal in the field of environmental protection.

There are four types of duct Rubber Expansion Joints: FDZ, FVB, FUB, and XB. Among them, the FUB type has a compensation length of ±90mm, a working pressure of ≤4500Pa, and a temperature range of -40°C to 300°C. The main characteristics of this compensator include excellent repeatable displacement (change) recoverability, capable of providing large multi-directional compensation. It can effectively reduce and eliminate the transmission of noise and vibration in systems such as boilers and fans. Additionally, it boasts outstanding airtightness and flexibility, ensuring no leakage of the conveyed medium and the ability to return to its original shape after repeated displacements.

The duct Rubber Flexible Expansion Joint is suitable for applications in thermal power plants, the petrochemical industry, flue gas desulfurization units, metallurgical systems, nuclear power plants, the cement industry, etc. It can be used in exhaust systems of boilers, gas turbines, and more.