Ventilation Back Draught Damper Volume Control Damper One Way Shutter

Specification:1. This damper is suitable for regulating or shutting off the airflow in air ducts with circular cross-sections.
2. The damper is constructed with galvanized steel collar and light-weight aluminum blades.
3. Designed for vertical or horizontal mount
4. Spring-loaded for positive closure
5. One-way directional airflow design
Selection data:
standard sizesD1D210098104125123129150148154160158164200198204250248254315313319

Packaging:
INTRODUCTION OF VENTECH:Since the day of establishment, VENTECH has built a reputation for going above and beyond to give you the best air you deserve. To us, it's not just aboutheating and cooling, but providingproducts you can reply onandservice you can trust.Heating and cooling account for more than half the energy use in average buildings- so and efficient system can save you money while keeping you and the business building comfortable.VENTECHoffers reliableheating and cooling products with wide range of effiency ratings, so you can pick the right solution that pays you back in lower utility costs. Higher-efficency systems may even qualify for potential utility rebates and other incentives in your own country, so you can start saving right away. Energy efficient systems aren't just good for your wallet- they can result in a reduced carbon footprint, since they use fewer natural resources.
OUR SERVICE COMMISSION:* VENTECH is the leader of air diffusion technology .We concerntration on high quality and competitive price.We have strict qualtiy control process,and every product is hand inspected to ensure it will be in good quality condition .* VENTECH will work to develop new design and technologies to achieve better product performance,easier to install and higher quanlty year on year .* VENTECH personnel will always cooperate with the customer to make doing business together and efficient ,fast and pleasant experience .* VENTECH is you best choice ,we are ready to cooperate with you to provide a comfortable way of handling air.ConTACT DETAILS: