We swapped out Para Plate valves
Think my first wand had PP valves
good valve, but ridiculously expensive if I recall
and a bit of a PITA to rebuild
PP, PMF,
Prochem and Westpac are the valves we've used over the years
I'm not sure if there's a better valve in the history of the world than the Westpac soft touch
Price point, longevity and deadsquare ease of rebuild makes it so
If hardware wasn't available to hang a Westpac, think I'd go see my local fab shop when time to replace a valve .....
..L.T.A.