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Fluid Circulation
32 313539F
Fluid Circulation
Circulation Through Reactor
To circulate through gun manifold and preheat hose, see
page 33.
1. Load fluid with feed pumps, page 24.
2. See Typical Installation, with circulation, page 8.
Route circulation lines back to respective compo-
nent A or B supply drum. Use hoses rated at the
maximum working pressure of this equipment. See
Technical Data, page 40.
3. Set PRESSURE RELIEF/SPRAY valves (SA, SB) to
PRESSURE RELIEF/CIRCULATION .
4. Turn main power ON .
5. Set temperature targets, see page 25. Turn on
and heat zones by pressing .
Do not turn on heat zone unless hoses are
already loaded with fluid.
6. Press to display actual temperatures.
7. Before starting motor, reduce hydraulic pressure to
the minimum required to circulate fluid until
and temperatures reach targets.
8. Press motor to start motor and pumps. Cir-
culate fluid at lowest possible pressure until temper-
atures reach targets.
9. Turn on heat zone by pressing .
10. Set PRESSURE RELIEF/SPRAY valves (SA, SB) to
SPRAY .
Do not circulate fluid containing a blowing agent with-
out consulting with your material supplier regarding
fluid temperature limits.
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 oper-
ating.
ti9879a
SA
SB
A
B
A
B
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ti7732a
ti9877a
SA
SB