Split-ring closures add
many attractive features to
Parr reactors and pressure
vessels.
• The reactor or vessel can be
opened and closed without
disturbing any connections or
fittings attached to the head.
• The full inside diameter of
the vessel is exposed when
the head is removed.
• A maximum area is exposed
on the head for attaching
valves and fittings.
• There are no cumbersome
bolt flanges or threaded studs
to interfere with operations,
and
• No delicate threads on the
cylinder to gall or to be dam-
aged in handling.
Screw Cap Closures
Parr uses screw cap closures
on small vessels where enough
sealing force can be developed
by simply tightening the main
screw cap. This design can be
made more compact than the
split ring closure and is used
primarily on general purpose
vessels with volumes of less
than 100 mL.
Split-Ring with Cap Screws and
Drop Band
Split-Ring with No Cap Screws
Split-Ring with Latches and
No Drop Band
Screw Cap Closure
Split-Ring with Cap Screws and
No Drop Band
1
17
P a r r I n s t r u m e n t C o m p a n y
1 - 8 0 0 - 8 7 2 - 7 7 2 0
D e s i g n F e a t u r e s
Hinged Split Rings
