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Product Introduction
Black ABS square‑to‑round flange is one‑piece injection‑molded. Pre‑drilled holes on square base connect square equipment to round flexible duct for range hood and fresh‑air systems. Inner arc‑shaped design reduces air resistance. Black finish resists oil contamination and aging. Sizes 75‑300mm available, widely applied in kitchen exhaust, central air‑conditioning and ventilation projects.
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Q1: What is the main application of this black square-to-round flange? A: Mainly used for range hood exhaust, also compatible with fresh-air and central air-conditioning duct systems.
Q2: Does the arc inner design help air flow performance? A: Yes, curved inner surface reduces air resistance for smoother exhaust and lower noise.
Q3: Are mounting holes reserved on the square base? A: Yes, pre-drilled mounting holes on base for screw installation.
Q4: What sizes are available for this square-round duct flange? A: Complete sizes from 75mm-300mm, refer to dimension table for detailed data.
Q5: Can you make non-standard custom dimensions? A: Standard sizes are in stock. Custom order requires drawing confirmation and MOQ evaluation.
Q6: Are mounting screws included in the package? A: Screws and fasteners are not included, please prepare accessories locally.
