Square and Round Air Ducts

Straight ducts and pipes made by Radel & Hahn Zrt. are produced from galvanized rebated sheet steel, meets the requirements of Austrian Standard ÖNORM M7615. They can be used for different purposes, taken into consideration the needed airflow rate, pressure difference and air tightness.

Radel & Hahn Zrt. produces heat and smoke exhaust rechtangular and round ventilation systems. They are made from galvanized steel plate of min. 0,9 mm thickness. They can be installed as part of heat and smoke ventilation systems of the buildings or as separated fire sections consisting of horizontal, vertical and elbow heat and smoke ventilation ducts, if flue gas temperature doesn’t exceed 600 °C.

Brochure of rechtangular and round ducts