Diagram of the later Stölzel valve (a later model Stözel valve with spring inside capsule)
Left: valve operated
Right: valve not operated
a = valve casing
b = piston
c = valve loop with slide
d = main tubing
f = touch piece, finger tip, lever
g = valve stem
h = top valve cap
l = return spring
q = spring barrel or capsule
See also photographs of Stözel valves
© the authors, 2004.
This page updated 5.1.05