As a manufacturer of rectangular fittings in many sizes and configurations, Sheet Metal Connectors, Inc. produces its y-duct connectors using state-of-the-art fabrication equipment in a yellow label union shop. All fittings are fabricated with stiffening beads on duct sizes 19” wide and larger which have more than 10 square feet of unbraced panel. Fittings shall be beaded unless the duct will have an insulation covering or an acoustical liner. This requirement is applicable to 20 gauge or less in thickness and 3” W.G. or less. Most fittings, including wye branch fittings, are fabricated with Pittsburgh seams. Y-duct connectors are available completely assembled with all accessories (reinforcement, corners, etc.) installed. Fittings are also available knocked down to reduce shipping and handling costs.
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