Internally Lined Volume Control DamperGalvanised steel volume control damper internally lined with 6mm Pyrosorb foam with acoustic and thermal properties. The dampers have male ends to fit inside ducting or other female fittings. They are used for manually balancing the flow of the air in ducting runs with a single circular blade. Bigger sizes available by phone or email enquiries.*Please note* some of the more uncommon sizes may have a larger lead time.This product is not eligible for Free Delivery on orders over £250 due to its size or shipping requirements.SKU: Alph44Delivery date: 5-7 days Ducting Size Please select150mm 200mm 250mm 300mm £0.00 ex VAT Buy 5+ Save 5% | Buy 10+ Save 10%5+ Units10+ Units——Qty: Add to cart Custom wishlist OKAdd to wishlistAdd to compare listEmail a friendInternally Lined Volume Control DampersOur Internally Lined Volume Control Dampers are designed to regulate airflow within acoustic ventilation systems while helping maintain reduced noise levels throughout commercial and industrial ductwork installations.These dampers are commonly used within offices, hospitals, schools, plant rooms, and commercial HVAC systems where airflow balancing and acoustic performance are both important. The internally lined construction helps reduce sound transfer while allowing accurate airflow adjustment throughout the ventilation system.Compatible / other products include Internally Lined Spiral Tube, Internally Lined Male Collars, Internally Lined 90° Spiral Ducting Bends, Volume Control Dampers, and Spiral Ducting Tube.Manufactured for reliable long term performance, these internally lined volume control dampers are suitable for commercial ventilation systems, acoustic ductwork installations, fresh air supply systems, and industrial HVAC applications requiring airflow control and sound reduction.