Tips to install semi-rigid flexible duct properly

For purposes that need both elasticity and solidity, a semi-rigid flexible duct is perfect. Without causing severe bending that limits airflow and without the requirement for extra support, semi-rigid flexible ducts may be bent to deliver airflow in the appropriate path. By doing this, the period and instruments needed to hold the exhaust system in position are decreased. Once stiff ductwork is in position, it cannot be moved again unless it is bent and twisted in a different way. Semi-rigid ducting, which is often used by business, institutional, and domestic groups, is among the most diverse and adaptable forms of self-supporting ducting in the industry because of these characteristics.

Minimize sharp turns

Minimize sharp semi-rigid flexible duct twists in all instances if you want to enhance the efficiency of your systems. Ducts should be arranged as straight as possible to maximize system performance. This isn’t always a possibility due to the numerous constraints present in modern homes. Try to minimize the number of turns a semi-rigid flexible duct must undergo. The greatest turns are long, sweeping ones that provide air a clearer route. Sharp 90° twists internally strain the flexible duct and limit airflow delivery. The system’s ambient pressure rises because of the steep turn’s restriction of ventilation.

The internal structure of semi-rigid flexible ducts frequently restricts airflow when they are attached to boots or takeoffs, which is another typical flaw that causes limited ventilation. If the core is not pulled tightly and trimmed to length, this occurs. If you aren’t doing this, the bagginess issue gets worse when the core contracts after you draw the insulation over the boot or collar.

Minimize the number of connections

Every ductwork connection needs to be secured, and the likelihood of a system leakage increases with each sealing. Conventional ductwork has several connections that require sealing since it has a core column that ductwork feeds. Installing flat ductwork while working from a height might be challenging since you must link each meter of ductwork before adding another section.

Providing adequate duct support

Shrinks from insufficient ductwork support are another frequent reason for complaints about poor airflow and comfort. There is significant drooping since many technicians only hold their ducts every 6 feet apart. And over the duct system’s lifespan, this deterioration will develop and continue to reduce ventilation.

Extra support is needed to correct bends and shrinks in the ductwork. The channel becomes congested when thin components, such as plumbing straps or wire, are used for suspending it. In desperate situations, a wire might rupture the ductwork and let air seep into the structure’s unconditioned spaces.

For more tips and better ductwork solutions, reach out to Delta Duct – an expert in manufacturing and supplying certified semi rigid flexible ducts in the UAE! 

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