Galvanized Steel Stainless Steel Chimney Ventilation Duct

304 stainless steel is widely utilized for heating system piping primarily for the following reasons: Strong Corrosion Resistance: It is particularly well-suited for humid environments (such as near ground-floor return valves), effectively resisting corrosion caused by chloride ions in the water and thereby extending service life. High-Temperature and High-Pressure Resistance: It complies with the Code for Design of Urban Heating Networks (CJJ 34) and is suitable for high-temperature (≥95°C) and high-pressure (≥1.6 MPa) operating conditions—such as the inlet and outlet piping for underfloor heating systems and gas boilers. High Resistance to Aging and Enhanced Safety: Compared to flexible rubber or plastic hoses, stainless steel corrugated pipes are less prone to aging or bursting, meeting modern safety standards for gas and hot water connections. Convenient Installation and Excellent Sealing: Utilizing a dual-press-fit combined with internal-thread connection method, it minimizes potential leak points and significantly enhances overall system reliability.