The AP64 is an all welded and springless check valve. The unique ultraclean design has only one moving part and O-ring. The check valve provides reverse flow protection for N2 purge gas introduction and other applications.
Surface Finish: M [10 μin. (0.25 μm)], Connections, Inlet: TW4 (1/4 Inch Tube Weld), Connections, Outlet: TW4 (1/4 Inch Tube Weld), Seat Material: NP (CR)