Parr Instrument Series 4540 - Manual (Page 9)

4540 High Pressure Reactor System
w w w . p a r r i n s t . c o m 9
IDENTIFY THE VALVES
Gas Inlet Valves
The gas inlet valve is easily identified when the
bomb is open by noting that it is connected to a dip
tube which 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 pressure hose furnished with the reactor.
Gas Release Valve
The gas release valve is connected to a plain opening
on the underside of the bomb head. Gas released from
this valve will be drawn from the top of the reactor.
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 clear-
ing the dip tube to be sure that any liquid sample
taken during a run will be representative of the
charge. This can be done by opening the upper gas
inlet valve momentarily to allow the inlet gas to force
any liquid in the dip tube back into the reactor before
withdrawing a sample from the sampling valve.
Pressure Gage
Thermocouple
Gas Inlet Valve
Gas Hose Connection
Liquid Sampling Valve
Gage Adapter
Stirrer Bracket
Thermowell
Dip Tube
Impeller
Cooling Coil
Shaft Assembly
Split Ring Assembly
Gas Release Valve
Removable Head Vessel Vessel with Standard Magnetic Drive Shown