64-061-31 is no longer available and needs to be replaced
64-061-31 TAC valve
TAC DWV - PN 6 DN 32
valve no longer available
This old TAC Valve is no longer in production, Schneider Electric do not have any PN6 valves. It's mainly Germany/Austria that uses PN6 valves. Dimensionally they are the same as PN16 valves, the main difference is the wall thickness but in all practical terms it costs more to have two separate tools for each valve PN hence why Schneider and 90% of other suppliers just have PN16 even though they may only ever be used under 6 bar static pressure.
As a replacement flanged valve, DN32, the V211 valve is suggested