Product Name: HVAC Ventilation Ceiling Air Return metal Round Exhaust Disc Valve Vent Model NO.: DV-R Certification: UL, ISO9001, ROHS, CE ventilation mode: natural ventilation Material: metal Surface Finish: Powder Coated Ral9016/9010 Color: Ral9016/9010 as Standard Size: Dia100,125,150,200mm Sample: Offer Application: HVAC System Installation: Ceiling OEM: Available Trademark: Vairtech Transport Package: Carton Box Specification: DV-R Origin: China HS Code: 7326909000 Product Description Exhaust Disc Air Valve for VentilationFeatures_______________________ 1. The frame & disc are high quality galvanized sheet construction with powder coating of RAL colors 2. Disc is fixed to the frame by threaded rod . 3. Air flow can be adjusted by regulating the cone up and down(+A or -A) . 4. Foam gasket is sealed around the back of the frame to avoid the air leakage. 5. Disc valves are best suited to air distribution systems handling relatively low air flow rates within smallcircular duct work. Structure_______________________Material:metalSurface Finsh:powder coatedColor:Ral 9016 as standard ,all other colors available upon requestAccessary:NoStandard Size_______________________Item CodeNeck Size (mm)Face Size (mm)DV-R-10098138DV-R-125123165DV-R-150148200DV-R-160158210DV-R-200198250All othersizes available upon request Applications__________________It is recommened for exhaust of greasy and damp air in damp areas such as toilets, bathrooms andkitchens.It can be mounted in the wall, ceiling or exposed to air ducts with mounting rings. Detailed pictures__________________Packaging&ShippingCompany InformationVairtech Ventilation Co.,Ltdis a professional manufacturer for supplying full range of ventilation products with about 15 years' experience, which is located in the Aluminum Hometown of China - Naihai, Foshan, Guangdong. We enjoy transportation & raw material convenience.