SANDPIPER MSB2-B - Manual (Page 9)

msb2dl3sm-REV0614 Model MSB2 Page 7
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 compat-
ible 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.
The air distribution valve has 3/4" NPT
threads for piped exhaust.
IMPORTANT INSTALLATION NOTE:
The manufacturer recommends installing a
flexible conductive hose or connection
between the pump and any rigid plumbing.
This reduces stresses on the molded 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
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
ILLUSTRATION #1
ILLUSTRATION #2
ILLUSTRATION #3