Exhaust safety when pumping hazardous liquids, Exhaust safety – SANDPIPER X02 User Manual
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EXHAUST SAFETY WHEN PUMPING HAZARDOUS LIQUIDS
Suction Lift Installation
Flooded Suction Installation
Submerged Installation
In the event of diaphragm rupture, pumped material may enter the air end of the pump, and be discharged into the atmosphere. If pumping
a product which is hazardous or toxic, the air exhaust must be piped to an appropriate area for safe disposition.
WARNING!
Exhaust Safety
When a diaphragm fails during operation, pumped liquid can enter and contaminate the air side of the pump. If diaphragm
failure is not severe, i.e. a small split or hole, then the pump can continue to run, with air being forced into the product
being pumped. If however the failure is more serious, then the pump may stop, with fluid or fumes being expelled through
the exhaust. Under these conditions it is recommended that exhaust is piped away to a safe area. In standard suction
lift conditions this can simply be done by piping from the exhaust connection to a safe area. Multiple installations can be
piped to a common connection, then to a safe area. In flooded suction exhaust is piped away above fluid level.
In all conditions ensure exhaust outlet is not expelling across a non-conductive surface. The exhaust must not be placed
less than 100mm from any non-conductive surface, as this may generate a propagating brush
discharge resulting in a possible ignition source.