Fluid Circulation - Graco Reactor A Series Operation

Fluid Circulation

Circulation Through Reactor
Use this procedure to purge air from pumps, heat-
ers, and lines.
WARNING
Read warnings, page 8. Do not circulate fluid contain-
ing a blowing agent without consulting with your mate-
rial supplier regarding fluid temperature limits.
To circulate through gun manifold and preheat hose, see
page 33.
1.
Load fluid with feed pumps, page 25.
WARNING
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 automati-
cally relieve pressure when machine is operating.
2.
Route air purge lines back to respective compo-
nent A or B supply drum. Use hoses rated at the
maximum working pressure of this equipment.
See F . 1, page 10.
IG
32
3.
Set PRESSURE RELIEF/SPRAY valves (SA,
SB) to PRESSURE RELIEF.
SA
BA
4.
Circulate fluid with feed pumps until air is purged
through pumps.
5.
Set PRESSURE RELIEF/SPRAY valves (SA,
SB) to SPRAY.
SA
Fluid Circulation
SB
BB
TI3593a
SB
TI3591a
309812D