Parr Instrument Series 4550 - Manual (Page 10)

4550 Floor Stand Reactors
P a r r I n s t r u m e n t C o m p a n y 10
IDENTIFY THE VALVES
Gas Inlet Valve
The gas inlet valve is easily identified when the bomb
is open by noting that it is connected to a dip tube
that extends to a point near the bottom of the bomb
cylinder. This is an angle valve with an attached fitting
which provides a socket for attaching the A495HC
pressure hose furnished with the reactor.
Gas Release Valve
The gas release valve is connected to an opening
that will not have any fitting installed on the un-
derside of the head. Gas released from this valve
will be drawn from the top of the reactor. The gas
release port does include a 1/8
th NPT thread on the
underside of the head where an additional dip tube
or catalyst addition device may be added. If one of
these additions is made to this port then an ad-
ditional valve must be added to the gage adapter to
be used as a gas release valve.
Liquid Sampling Valve
The liquid sampling valve is attached to the same
fitting as the gas inlet valve and connected to the
same dip tube. With this arrangement, incoming gas
is always introduced below the surface of the liquid
and the operator is provided with a means for clearing
the dip tube to be sure that any sample taken during
a run will be representative of the charge. This can be
done by opening the gas valve momentarily to force
any liquid in the dip tube back into the reactor before
withdrawing a sample from the sampling valve.
(COOLING COIL)
VALVE, LIQUID SAMPLING
(2) ELBOW,COOLING COIL
MALE CONNECTOR, DIP TUBE
GAGE ADAPTER
COMPRESSION RING
HEAD, REMOVABLE
(INLET/OUTLET)
GAS RELEASE VALVE
RUPTURE DISC ASSY
VALVE ADAPTER
DIP TUBE
PRESSURE GAGE
ADAPTER BUSHING
MAGNETIC DRIVE ASSY
ADAPTER BUSHING
VALVE ADAPTER
HEX PLUG (EXTRA PORT)
STIRRER SHAFT ASSY
THERMOWELL
SERPENTINE COOLING COIL
(2) IMPELLER ASSY
STIRRER BRACKET ASSY
THERMOCOUPLE
GAS INLET VALVE
ADAPTER, GAS CONNECTION
(2) MALE CONNECTOR
GLAND NUT, MAG DRIVE