Component Identification
14 3A2012J
Catalyst Pump
The catalyst pump supplies catalyst to the spray gun.
Pump arm (U): controls catalyst flow.
Ratio adjustment knob (V1): use to lock/unlock pump
position and adjust the resin to catalyst ratio. It is easiest
to adjust the ratio when the pump is at the bottom of the
stroke.
Pivot point (V2): when pump is moved to adjust ratio,
this point stays stationary.
High pressure relief valve (W): directs catalyst to gun
or back to tank to relieve pressure. It also automatically
relieves pressure if it exceeds normal working pressure.
Fluid pressure gauge (X): indicates catalyst fluid pres-
sure.
Fluid inlet (Y): fluid inlet from the catalyst reservoir.
Fluid Inlet Ball Valve (Y2): controls flow of catalyst to
the catalyst pump.
Weep line (Z): In the event of a throat seal failure, the
fluid will flow into the weep line and back to the catalyst
reservoir.
Fluid outlet (Z1): fluid out to the gun.
Fluid recirculation/high pressure relief (Z2): fluid out-
let to the catalyst reservoir.
Low pressure relief valve (Z3): External mix systems
only. Directs catalyst to gun or back to tank to relieve
pressure.
F
IG
. 3: Catalyst Pump Components
V1
X
U
W
Z2
Z
Z3
YV2
U
ti21340a
Z1
Z2
Z
ti21342a
Z3
Y2