When it comes to reliable flex ducting, industry virtually everywhere turn to 4” duct. This type of flexible duct has become synonymous with ease of use and customer satisfaction because of its affordability and its wide variety of possible implementations. From material collection (dust, aluminum shavings, etc.) to fan ducting, the 4 inch duct has proven time and time again its worth when it comes to industries of all sorts. Most flexible hose products are spec’d out by OEMs when producing their machinery like leaf collectors, air ventilation systems or woodworking machinery. The main reason for the large demand for 4” flexible hose is that more OEMs (original equipment manufacturers) choose this size for their machinery and equipment. Hence when businesses and consumers go to replace the hose on their purchased equipment, they need a 4 inch duct! So why do OEM’s default to a 4” duct so often?
One of the things that compels the purchase of the 4” duct is that, due to its relatively compact diameter, it can better handle intense pressure (both negative and positive). This is important for vacuum applications. Four inch seems to be the most popular large sized hose which is used on industrial and commercial vacuums. As your local duct supplier will more than likely impart to you, the larger in diameter hose is, the more energy is required to force or suck air through the length of the hose. Through the installation of relatively narrow diameter of a 4” duct, however, you will be easily capable of generating the consistent pressure required for all your flexible ductwork needs. This benefit is especially noted by those in the commercial duct fields, who find maintaining constant and powerful pressure imperative for all their needs. Which is why you see this hose on lots of industrial equipment.