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The Nabic 2 inch 542 Safety Valve - 4.5 Bar is a highly versatile solution designed to ensure safety across various systems, including hot water, steam, and air applications. Primarily intended for hot water boiler protection, this general-purpose valve is equally effective for a wide range of industrial and commercial uses. Its resilient PTFE seating design provides excellent seat tightness, ensuring reliable performance under pressure. Sizes DN40 and above come equipped with a fitted drain plug, adding convenience for maintenance. The valve is engineered for easy inspection and cleaning, reducing downtime and enhancing system efficiency. Operating at 4.5 Bar, this safety valve is a dependable choice for safeguarding system integrity and maintaining optimal performance.. Nabic 2 inch 542 Safety Valve - 4.5 Bar Brass NAB54205045