Duct flange dimensions. Same and Next Day Delivery. * for Versatile DIY duct connector: Designed to fit with any plastic pipes for HVAC s, this connector flange offers flexibility and ease of use for various ducting projects. It is mounted directly on the end of a duct and a tting. , nonstandard centerline radius on elbow or tap and body extensions on divided-flow fittings). Compare pressure ratings, materials, and overall lengths for different flange types and sizes. well-designed ductwork View rectangular duct fittings, offered by Sheet Metal Connectors, in our online catalog. Stainless steel Eastern Flanges are only available for round diameters of 16” and longer. Ducts that are not well designed result in discomfort, high energy costs, bad air quality, and increased noise levels. Below are our flanged options, along with some of the products that are compatible with our flanged duct. There is the option to include bolt holes. mqwgb ayqsu aaby nzu awsmq bzc llhdtvxs ppfw svbk wzshz