The duct diameter can follow the AC equipment requirement, whatever the diameter is. Till now, the biggest duct diameter we supplied is nearly 3 meters. The length of DurkeeSox duct depends on project requirements without limitation. However, longer the duct is, the friction resistance will be higher. The longest duct we produced is more than 200 meters offered to auto plant.

After national level testing, finishedgoods of DurkeeSox System has normal appearance without crackle and breakage.The system's pressure resistance is related to whole HVAC system and airflow volume. Generally, it's no problem to employ the system under 3000Pa for a long term service. So compared with traditional ducts, DurkeeSox system is the best pressure resistance product.

DurkeeSox System disperses airflow by static pressure. The duct can be inflated in good shapewhen static pressure is above 100Pa, but crumple under 70Pa.