s05mdl1sm-REV0708
Model S05 Metallic Page 31
SAFE AIR
EXHAUST
DISPOSAL
AREA
PUMP INSTALLATION AREA
1" DIAMETER AIR
EXHAUST PIPING
1" DIAMETER AIR
EXHAUST PIPING
1" DIAMETER AIR
EXHAUST PIPING
MUFFLER
LIQUID
LEVEL
SUCTION
LINE
LIQUID
LEVEL
SUCTION
LINE
MUFFLER
MUFFLER
PUMPING HAZARDOUS LIQUIDS
When a diaphragm fails, the pumped
liquid or fumes enter the air end of
the pump. Fumes are exhausted into
the surrounding environment. When
pumping hazardous or toxic materials,
the exhaust air must be piped to an
appropriate area for safe disposal. See
illustration #1 at right.
This pump can be submerged if
the pump materials of construction
are compatible with the liquid being
pumped. The air exhaust must be piped
above the liquid level. See illustration
#2 at right. Piping used for the air
exhaust must not be smaller than 1/2"
(1.27 cm) diameter. Reducing the pipe
size will restrict air fl ow and reduce
pump performance. When the pumped
product source is at a higher level than
the pump (fl ooded suction condition),
pipe the exhaust higher than the
product source to prevent siphoning
spills. See illustration #3 at right.
CONVERTING THE PUMP FOR
PIPING THE EXHAUST AIR
The following steps are necessary to
convert the pump to pipe the exhaust
air away from the pump.
Use a Phillips screwdriver to remove
the four self-tapping screws (item
1-H).
Remove the muffl er cap and muffl er
(items 1-G and 1-F). The 3/8" NPT
molded threads in the air distribution
valve body (item 1-A).
Piping or hose may now be installed.
IMPORTANT INSTALLATION NOTE:
T h e m a nu fa c t u r e r r e c o m m e n d s
installing a conductive flexible hose
or connection between the pump
and any rigid plumbing. This reduces
stresses on the molded plastic threads
of the air exhaust port. Failure to do so
may result in damage to the air distribution
valve body.
Any piping or hose connected to
the pump’s air exhaust port must be
conductive and physically supported.
Failure to support these connections
could also result in damage to the air
distribution valve body.
CONVERTED EXHAUST ILLUSTRATION
Illustration #1
Illustration #2
Illustration #3
Exhaust Conversion Drawing
On ATEX compliant units the pump
comes equipped with a metal muffl er
Air Valve Assembly
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