Part NumberSIZE NPT/BSPPTFE/CVF2/11/4″PTFE/CVF2/23/8″PTFE/CVF2/31/2″PTFE/CVF2/43/4″PTFE/CVF2/51″Some Common Sizes for PTFE Check Valve Female areFAV PTFE Check Valve 1/8″ NPTFFAV PTFE Check Valve 1/4″ NPTFFAV PTFE Check Valve 3/8″ NPTFFAV PTFE Check Valve 1/2″ NPTFFAV PTFE Check Valve 3/4″ NPTFFAV PTFE Check Valves 1″ NPTF
FAV PTFE Check Valve 1/8″ NPTFFAV PTFE Check Valve 1/4″ NPTFFAV PTFE Check Valve 3/8″ NPTFFAV PTFE Check Valve 1/2″ NPTFFAV PTFE Check Valve 3/4″ NPTFFAV PTFE Check Valves 1″ NPTF