Installation
3A6831G
9
Connect Pneumatic Supply
1.
Install the pneumatic pressure regulator (E) and
gauge to control the inlet pressure. See
on
page 3 for your model’s maximum pneumatic pres-
sure.
NOTE:
If less than 100 psi supply pressure is used, the
pump’s maximum output pressure will be decreased
proportionally.
Minimum pneumatic pressure can be found by first find-
ing the table that corresponds to the pneumatic motor
size (see
Minimum Pneumatic Pressures by Fluid
Plunger Size and Outlet Pressures
on page 10). Next,
using the column that corresponds to the plunger size,
find the row equal to or slightly greater than the outlet
pressure of the pump. The value is the minimum pneu-
matic pressure required to achieve the fluid outlet pres-
sure.
2.
Install a pneumatic filter (C) to keep debris from
affecting pump performance and to increase pump
life.
NOTE:
Keep the secondary bleed-type pneumatic
valve (B) closed at this point to keep the pump from
operating without fluid, which minimizes seal wear.
3.
Attach a pneumatic line to the 1/4 in. female NPT
port on the secondary bleed-type pneumatic
valve (B).
Route Exhaust to Remote
Location
Replace the muffler (18) with a pneumatic line to route
exhaust to a remote location.
Connect Chemical Outlet
1.
Connect a fluid line from the pump outlet port (M) to
the injection point.
2.
Install a check valve (T).
3.
Install a fluid pressure relief valve (J) on the outlet
side of the pump.
NOTE:
A pressure relief valve is required and is avail-
able from Graco, and can be connected back to the tank
or directly to the inlet side of the pump. See
Kits and
Accessories
on page 36.
4.
Set the pressure relief valve at or below the maxi-
mum working pressure of the pump.
NOTICE
Due to the operational design of the pneumatic valve,
a small amount of the exhaust is not recoverable, and
will vent to atmosphere. However, a 100% Exhaust
Capture Kit, B32651, is available.
In the event of an injection line blockage, to reduce the
risk of skin injection and damage to the pump, ensure
the pressure relief valve is set at or below the maxi-
mum working pressure of the pump.
