Fluid Circulation; Circulation Through Reactor - Graco Reactor 2 Series Operation

Fluid Circulation

Circulation Through Reactor

NOTICE
To prevent equipment damage, do not circulate
fluid containing a blowing agent without consulting
with your material supplier regarding fluid
temperature limits.
Note
Optimum heat transfer is achieved at lower
fluid flow rates with temperature set points at
desired drum temperature. Low temperature
rise deviation errors may result.
To circulate through gun
manifold and preheat hose, see
Circulation Through Gun Manifold, page
1. Follow Startup, page
To avoid injection injury and splashing, do not
install shutoffs downstream of the PRESSURE
RELIEF/SPRAY valve outlets (BA, BB). The
valves function as overpressure relief valves
when set to SPRAY
open so valves can automatically relieve
pressure when machine is operating.
2. See Typical Installation, with circulation, page
Route circulation lines back to respective
component A or B supply drum. Use hoses
rated at the maximum working pressure of this
equipment.
332636C
62.
57.
. Lines must be
3. Set PRESSURE RELIEF/SPRAY valves (SA,
SB) to PRESSURE RELIEF/CIRCULATION
4. Set temperature targets. See
5. Press to circulate fluid in jog mode until
A and B temperatures reach targets. See
Jog Mode, page 62
jog mode.
6. Press to turn on the hose heat zone.
7. Turn on the A and B heat zones. Wait until the
fluid inlet valve temperature gauges (FV) reach
the minimum chemical temperature from the
supply drums.
8. Exit jog mode.
9. Set PRESSURE RELIEF/SPRAY valves (SA,
SB) to SPRAY
15.
Fluid Circulation
Targets, page
for more information about
.
.
53.
61