819.4470
8
Installation
Air Exhaust Ventilation
FIRE AND EXPLOSION HAZARD
Be sure to read and follow the warnings and
precautions regarding
TOXIC FLUID HAZ-
ARD,
and
FIRE OR EXPLOSION HAZARD
on page 3, before operating this pump.
Be sure the system is properly ventilated for your type of
installation. You must vent the exhaust to a safe place, away
from people, animals, food handling areas, and all sources
of ignition when pumping flammable or hazardous fluids.
Diaphragm failure will cause the fluid being pumped to ex-
haust with the air. Place an appropriate container at the end
of the air exhaust line to catch the fluid. See Fig. 6.
Warning
The air exhaust port is 3/4 npt(f). Do not restrict the air ex-
haust port. Excessive exhaust restriction can cause erratic
pump operation.
To provide a remote exhaust:
1.
Remove the muffler (P) from the pump air exhaust port.
2.
Install a grounded air exhaust hose (T) and connect the
muffler (P) to the other end of the hose. The minimum
size for the air exhaust hose is 19 mm ID. If a hose lon-
ger than 4.57 m is required, use a larger diameter hose.
Avoid sharp bends or kinks in the hose.
3.
Place a container (U) at the end of the air exhaust line to
catch fluid in case a diaphragm ruptures. See Fig. 6.
Fig. 6
KEY
A
Air Supply Line
B
Bleed-Type Master Air Valve
(required for pump)
C
Air Regulator
D
Air Line Quick Disconnect
E
Master Air Valve (for accessories)
F
Air Line Filter
P
Muffler
T
Grounded Air Exhaust Hose
U
Container for Remote Air Exhaust
F
B
E
C
A
D
VENTING EXHAUST AIR
P
T
U
02650
