Festo SE & Co. KG H-1 4B 1 4” NPT Non-Return Check Valve is an inline valve with an NPT-threaded connection designed to prevent backflow in piping systems. The part number is PN: H-1 4B 1 4” NPT. This FESTO non-return valve employs a one-way flow design to block reverse flow in lines using standard NPT fittings.
