Description
Up
for sale is one Parker Vacumatic Diaphragm for the Parker
Vacumatic Junior, Standard, Major, Late Model 1940's
Duofold Senior, Maxima Speedline or Plastic Plunger -
the diaphragm in the center of the picture. The Parker given name for
this item is a Diaphragm (often referred to as a Sac as it looks a
lot like a conventional Sac), but it doesn't really hold any ink
like a conventional ink sac. Instead, when the filling plunger is
pressed, the diaphragm is extended inside the barrel forcing air out.
When the plunger is released the diaphragm retracts pulling ink in
through the feed. It takes about 8 - 10 plunges to fill a Vac to
capacity - pause briefly between plunges to allow the ink to be fully
pulled into the barrel.
This Diaphragm is brand
new, includes the retention pellet and was recently molded. I use
them myself to repair Vacumatics and have never had a problem. Before
installing, trim it to 1 1/16 inches long.
The
following chart might be of use as a guide in selecting the right
size diaphragm - all three are in separate listings:
Diaphragm
Size & Model Used On:
Oversize:
Oversize Lockdown and Sr. Maxima Speedline
Standard:
Junior, Standard, Major, Late Model 1940's Duofold
Senior, Maxima Speedline or Plastic Plunger
Debutante:
Late Model 1940's Duofold Ingenue, “51”s,
Debutante
I
ship same or next business day. Please contact me with any
questions.
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