Normal operation – Pulsafeeder Eclipse Model 75 User Manual

Page 137

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Normal Operation

More detailed information is supplied in the Installation, Operation, and Maintenance manual.

Potential Ignition Source

Measures to take to prevent the source from

becoming effective

Frictional ignition

All moving parts in the pumps are submersed
in the pumped fluid, which acts as a lubricant
and coolant. Do not run the pump dry.
Packing is not recommended for Explosive
environments due to the possibility of high
temperature in the area of the stuffing box due
to mis-adjustment. If packing is used, thermal
monitoring is required to meet ATEX
requirements

Pump bearings

Verify pump turns freely

The use of a strainer is recommended

The use of bearing flushing is recommended
The bearing housings need to be examined for
signs of overheating, abnormal noise, or
discoloration on a daily basis. Alternatively
continuous temperature monitoring can be
fitted and set to trip the drive power at 10 C
above normal baseline temperature

Monitor pump frequently when pumping non-
lubricating fluids

Power frame bearings

Check lubricant level weekly and monitor for
leaks daily

Dust deposits on pump

Regular cleaning is needed to prevent deposits
from accumulating in a thickness great enough
to become an ignition hazard

Static electricity discharge

The pump must be grounded (bonded) at the
"Protective Earth Ground" location marked on
the pump

Vent cavities to prevent Oxygen / Air build up

High temperatures

Recommend Temperature monitors

Recommend Flow indicator

Recommend Power monitor

Recommend Pressure switch

Use of electric motor

If an electric motor is used as a driver for the
pump, it must be ATEX approved for the
environment

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