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Installation (Air–Powered Pumps)
Air Line Accessories
Install the following accessories in the order shown in
Fig. 3, using adapters as necessary:
•An air line lubricator (D) provides automatic air
motor lubrication. Locate in the position shown.
•A main air bleed valve (C) is required in your sys-
tem to shut off the air supply to the pump and ram
(see the WARNING above). When closed, the valve
will bleed off all air in the ram and pump, and the ram
will slowly lower. Be sure the valve is easily accessi-
ble from the pump, and is located upstream from the
air manifold (G).
•A pump air bleed valve (E) is required in your sys-
tem to relieve air trapped between it and the air
motor when the valve is closed (see the WARNING
at left). Be sure the bleed valve is easily accessible
from the pump, and is located downstream from the
air regulator.
•An air regulator (F) controls pump speed and outlet
pressure by adjusting the air pressure to the pump.
Locate the regulator close to the pump, but
upstream from the pump air bleed valve.
•A pump runaway valve (V) senses when the pump
is running too fast and automatically shuts off the air
to the motor. A pump which runs too fast can be seri-
ously damaged. Locate in the position shown.
•An air manifold (G) has a swivel air inlet. It mounts
to a ram, and has ports for connecting lines to air
accessories, such as the ram air regulator (T) and
ram director valve (U).
•An air line filter (J) removes harmful dirt and mois-
ture from the compressed air supply. Also, install a
drain valve (W) at the bottom of each air line drop, to
drain off moisture.
•An air shutoff valve (K) isolates the air line acces-
sories for servicing. Locate upstream from all other
air line accessories.
Fluid Line Accessories
Install the following accessories in the positions shown
in Figs. 3 and 4, using adapters as necessary:
• Install a fluid shutoff valve (P) at each gun/valve
drop, to isolate the gun/valve and fluid accessories
for servicing.
• Install a fluid drain valve (M) near the pump fluid
outlet, and at each gun/valve station. The drain
valves are required in your system to relieve fluid
pressure in the displacement pump, hose and gun/
valve (see the WARNING at left). Drain valves at the
gun/valve stations may be mounted in the base of a
fluid regulator (L), using an adapter.
•A fluid regulator (L) controls fluid pressure to the
gun/valve, and dampens pressure surges.
•A gun or dispense valve (S) dispenses the fluid.
The gun shown in Fig. 3 is a high pressure dispens-
ing gun for highly viscous fluids.
•A gun/valve swivel (R) allows freer gun/valve move-
ment
WARNING
A main air bleed valve (C), pump air bleed valve
(E), and fluid drain valve (M) are required. These
accessories help reduce the risk of serious injury,
including fluid injection and splashing of fluid in the
eyes or on the skin, and injury from moving parts if
you are adjusting or repairing the pump.
The main air bleed valve (C) shuts off the air to the
pump and ram. The pump air bleed valve (E)
relieves air trapped between this valve and the
pump after the air is shut off. Trapped air can
cause the pump to cycle unexpectedly. Locate the
valve close to the pump. Order Part No. 107141.
The fluid drain valve assists in relieving fluid
pressure in the displacement pump, hose, and gun.
Triggering the gun to relieve pressure may not be
sufficient. Order Part No. 210658.
