Fluid Circulation; Circulation Through Reactor - Graco Reactor 2 H-30 Operation

Fluid Circulation

Fluid Circulation Circulation
Fluid Fluid Circulation
Circulation Through Through Reactor
Circulation Circulation Through
NOTICE NOTICE NOTICE
To prevent equipment damage, do not circulate
fluid containing a blowing agent without consulting
with your material supplier regarding fluid
temperature limits.
NOTE: NOTE: Optimum heat transfer is achieved at lower NOTE:
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 . Lines must be open so
valves can automatically relieve pressure
when machine is operating.
2. See Typical Installation, with system fluid
manifold to drum circulation, page
circulation lines back to respective component
A or B supply drum. Use hoses rated for the
maximum working pressure of this equipment.
See Technical Specifications, page
3. Set PRESSURE RELIEF/SPRAY valves (SA,
SB) to PRESSURE RELIEF/CIRCULATION
50
Reactor
Reactor
51.
47.
18. Route
76.
4. Set temperature targets. See
Targets Screen, page
5. Before starting the motor, unlock the hydraulic
compensator knob, then rotate counter-clockwise
until it ceases to move.
6. Press motor
Circulate fluid at lowest possible pressure until
temperatures reach targets.
7. Press to turn on the hose heat zone.
8. Turn on the A and B heat zones. Wait until the
fluid inlet valve temperature gauges (FTG) reach
the minimum chemical temperature from the
supply drums.
9. Turn off motor.
10. Set PRESSURE RELIEF/SPRAY valves (SA,
SB) to SPRAY
.
42.
to start motor and pumps.
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