Will fiber bag ducts burst?

Fiber bags for ductwork are generally not prone to tearing under normal use, but there is a possibility of tearing under certain specific conditions.

Factors That May Lead to Fracture

Improper Installation: If not properly secured during the installation process, ductwork may rupture when shaken or subjected to external forces. For instance, if the suspension points are not sturdy or the spacing is too wide, it can cause localized stress concentration in the ductwork.

Exceeding Design Load: A ventilation system failure can lead to a sudden, dramatic increase in air pressure, surpassing the wind duct's load-bearing limit, potentially causing it to burst. For instance, a fan malfunction may cause abnormally high wind speeds, or severe internal blockage within the ducts may result in a significant increase in local pressure.

External Damage: In certain environments, the ductwork may crack due to collisions with sharp objects, abrasions, or erosion by corrosive substances. For instance, this could occur on construction sites where tools inadvertently strike the ductwork, or in areas with chemical gases where protective measures are not taken over extended periods.

Normal operation

Under proper installation, operation, and maintenance in accordance with design requirements and specifications, fiber bag ductwork is highly reliable. Correct installation ensures that all parts of the duct are tightly and securely connected, preventing damage from its own weight or normal air flow. During routine operation, as long as parameters like air speed and pressure remain within the design limits, the ducts generally do not experience cracking issues. Additionally, regular cleaning and maintenance can promptly remove dust and debris from within the ducts, keeping them well-ventilated and reducing the risk of abnormally high internal pressure due to blockages and other causes.

Material characteristics reduce breakage risk

Fiber bag ducts are made from special fiber materials, offering flexibility and tensile strength. These materials are processed with a unique technique to accommodate varying air pressure and temperature within a certain range, maintaining optimal performance in standard ventilation systems. For instance, their fiber structure serves as a cushion against minor external impacts, reducing the likelihood of rupture.