Ventilation exhaust and supply disc metal air valve for round duct
- Ningbo Aier ventilation Equipment Co. LTD
- product brand:Aier
- رقم الكشك：W4D43
- product specification:
- product category:Ventilation Plants-Air passages, ventilation gratings, air inlets / air outlets-
- product introduction:Product Name: IRIS Damper
Material: Galvanized steel or stainless steel 316L
Plastic part: Available in orange and yellow color or as per client's request
Gasket: Double lips EPDM rubber
Class of airtightness: C class according to EN1751:2014
Available sizes: 80mm- 800mm
Usage: Iris damper for air volume control of circular duct
