FREEZING OR ICING
OF EXHAUST
Icing of the air exhaust can occur
under certain conditions of tempera-
ture and humidity on compressed air
power equipment. When pump perfor-
mance suffers because of icing, a non-
sticky anti-freeze lubricant such as
KILFROST, in an air line lubricator, will
solve the problem. Icing is more likely to
occur at high discharge pressures.
If a diaphragm fails, the
pumped product or fumes can
enter the air side of the pump.
This side is exhausted through
the exhaust port (muffler).
When the product is a hazar-
dous or toxic material, the
exhaust should be piped to. an
appropriate area for safe dis-
position.
When the product source is
at a higher level than the pump
(flooded suction), the exhaust
should be piped to a higher
level than the product to pre-
vent spills caused by siphoning.
MAINTENANCE AFTER USE
Before maintenance or re-
pair, shut off the compressed
air line, bleed the pressure, and
disconnect the air Iine from the
pump. The discharge line may
be pressurized and must be bled
of its pressure. When the pump
is used for toxic or aggressive
fluids, it should be flushed clean
prior to disassembly.
When the pump is used for materials
that tend to settle out or transform from
liquid to solid form, care must be taken
after each use or during idle time to
remove them and flush the pump as
required to prevent damage.
In freezing temperatures the pump
must be completely drained when idle.
This model must be tilted to allow the
liquid from the chambers to run out of
the discharge port.
DUAL PORTED
MANIFOLD
© Indicates Change
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