VERDER VERDERAIR VA 25 Instructions-Parts List Manual page 9

Installation
Air Exhaust Ventilation
Warning
FIRE AND EXPLOSION HAZARD
Be sure to read FIRE OR EXPLOSION
HAZARD and TOXIC FLUID 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.
E F
Fig. 6
VENTING EXHAUST AIR
C B
D
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 long-
er than 4.57 m is required, use a larger diameter hose.
Avoid sharp bends or kinks in the hose. See Fig. 6.
3. Place a container (U) at the end of the air exhaust line to
catch fluid in case a diaphragm ruptures.
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
A
T
U
P
819.4367
04168A
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