An irritating fact of restoring vintage Parker fountain pens with a vacumatic filling system, is that the diaphragm sockets are very brittle, and often crack or break. At the least, this leaves sharp edges; at the most, the diaphragm won’t stay seated.
Until now, the only choices have been to either come up with a salvaged filler unit (at about $35), or to create a replacement out of something close in shape and size. Now there is another cheaper (and, dare we say, greener?) option.
We are happy to offer custom-turned replacement sockets which will fit the Vacumatic filler unit, as found in Parker “51”s, Duofolds, and Vacumatics (note: these are not for the speedline or lock-down units). Each is hand-turned out of Delrin, which is strong and durable, but has much more flexibility than the original plastic. Although there are some minor variations, each is fully tested for fit and pellet snugness. Due to the variability in the plastic plunger-tenon size we suggest that you use a drop of cyanoacrylate (‘super’) glue to keep them in place.
Priced individually, includes shipping worldwide.