SANDPIPER M15 Non-Metallic - Manual (Page 27)

m15nmdl3sm-rev0713 Model M15 Non-Metallic Page 25
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" (2.54
cm) diameter. Reducing the pipe
size will restrict air flow and reduce
pump performance. When the pumped
product source is at a higher level than
the pump (flooded 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 #8 Torx or flat screwdriver
to remove the six self-tapping screws
(item 1-J).
Remove the muffler cap and muffler
(items 1-D and 1-F). The 1" NPT
molded threads in the air distribution
valve body (item 1-B).
Piping or hose may now be installed.
IMPORTANT INSTALLATION
NOTE: The manufacturer recommends
installing a 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
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