40
P a r r I n s t r u m e n t C o m p a n y
Series 4550 1 & 2 Gallon Reactor Systems
Series Number:
4550
Type:
General Purpose
Stand:
Floor Stand
Vessel Mounting:
Moveable
or
Fixed Head
Vessel Sizes, Gallons:
1 and 2
Standard Pressure
MAWP Rating, psi (bar):
1900 (131)
Standard Maximum
Operating Temp., °C:
225
w/ FKM O-ring
275
w/ FFKM O-ring
350
w/ PTFE Flat Gasket
T
hese 4550 Reactors extend
the size range of the 4530
Series to 1 and 2 gallon (3.75
and 7.5 liter) sizes, providing
excellent facilities for pilot plant
studies. They can be furnished
with either a self-sealing
O-ring closure for working
temperatures up to 225 °C,
or with a flat, PTFE gasket for
higher temperatures to 350 °C.
Both fixed head and moveable
head designs are available.
The moveable head, Model
4551 and 4552, reactors are
designed so that they can be
opened or closed conveniently
without removing the cylinder
from the heater and without
auxiliary handling equipment.
The split-ring cover clamp sec-
tions can be moved into place
from the sides, and the cap
screws can be tightened with
the vessel in place in its heater.
The fixed head versions, Model
4553 and 4554, allow the head
(and the connections made to
it) to remain in place while the
cylinder and heater are lowered
with the aid of the included
pneumatic lift system.
The 1 gallon size is usu-
ally recommended for high
viscosity polymer studies. An
optional bottom drain valve
may be added for convenient
product recovery. As with the
smaller floor stand models,
these larger, self- contained
systems can be equipped
with a variety of attachments,
such as: condensers, solids
charging port, bottom drain,
special motors, special heaters,
jacketed vessels and automatic
valves and regulators. Because
of the higher wattage heaters
for these reactors, all models
in the 4550 Series require a 230
volt power supply.
Model 4554 Reactor Fixed Head, Two Gallon Vessel, Pneumatic Lift, Hinged
Split Rings, opened to show Internal Fittings and Serpentine Cooling Coil, with
4848 Reactor Controller shown with optional Expansion Modules.
