Gray Iron Casting Flexible Flange Tee with Corrosion Resistant Coating for Vibration Damping in Building Drainage Systems

Our gray cast iron A-type flexible drainage pipe fitting castings include tees, reducing tees and elbows, which are essential cast components for building sewage and vent pipelines. Manufactured from high-quality gray cast iron by sand casting process, these pipe castings feature excellent vibration damping, sound insulation and fire resistance performance. The internal casting texture is dense with smooth inner wall, reducing flow resistance and preventing pipeline blockage. All castings are inspected for chemical composition and dimensional tolerance, meeting international construction plumbing standards.

This A-type pipe fitting adopts flange bolt connection structure, which is matched with rubber sealing ring to realize flexible connection. It can effectively absorb pipeline displacement caused by foundation settlement or thermal expansion, avoiding pipe cracking and leakage. The surface can be treated with asphalt anti-corrosion coating to enhance rust resistance for long-term underground or indoor use. We supply multiple standard sizes including DN75, DN100, DN150 and support customized castings according to customers’ drawings.

These gray cast iron drainage fittings are widely used in high-rise residential buildings, hospitals, shopping malls, schools and old building renovation projects for sewage, rainwater and ventilation drainage. As a professional casting procurement platform, we carry out full-process quality control from raw material melting, casting molding to final inspection. We can provide stable bulk supply and competitive factory price, meeting the bulk procurement demand of global construction material suppliers and plumbing contractors.