Mueller A17940 Check Valve 323613-751 Built with a cast copper

Built with a cast copper silicon alloy body

ensuring drop-in compatibility and maintaining the original equipment’s safety certification

preventing hazardous overheating or fire

pilot-operated unit engineered specifically for hot water service

Key Benefits OEM Compatibility: Exact Carrier replacement part for 70k BTU units

Mueller A17940 Check Valve 323613-751 Built with a cast copperFor field technicians and mechanical contractors, the Mueller A17940 stands as a heavy duty 1 1 8 magnetic check valve engineered to eliminate backflow in critical refrigeration and air conditioning circuits. Part of the Mueller CHECKMASTER series, this valve utilizes DuraForm technology to secure internal components without the use of braze materials. This manufacturing process prevents the overheating and warping often associated with traditional