•
Leakage of process liquid may result in creation of an explosive atmosphere. Ensure the materials
of the pump casing, impeller, shaft, sleeves, gaskets and seals are compatible with the process liq-
uid.
•
Leakage of process liquid may result in creation of an explosive atmosphere. Follow all pump and
seal assembly procedures.
•
A buildup of gases within the pump, sealing system and or process piping system may result in an
explosive environment within the pump or process piping system. Ensure process piping system,
pump and sealing system are properly vented prior to operation.
•
Sealing systems that are not self purging or self venting, such as plan 23, require manual venting
prior to operation. Failure to do so will result in excess heat generation and seal failure.
•
Do not apply additional paint or coatings to the pump when in an ATEX environment. Static electric
discharge can be initiated when contacting or rubbing surfaces with excessive coating thickness.
•
Potential electrostatic charging hazard. Do not rub, clean, or blast equipment with dry cloth or dry
media.
•
Stray electrical currents may ignite explosive atmospheres ensure adequate shaft ground meas-
ures are applied. Ensure drives are certified for variable frequency drive operation by the manufac-
turer. Use ground brushes on VFD motor applications with conductive couplings or ensure pump
shaft is adequately grounded.
•
User shall observe necessity of using a safety device, such as a flame arrestor, to prevent flame
entering or leaving the pump sump, tank, or barrel when applicable.
•
In plants or pumps with cathodic corrosion protection, a small current constantly flows through the
construction. This is not permissible on the complete pump or partially-assembled machinery with-
out further precautions being taken. ITT should be consulted in this context.
Equipment for monitoring
For additional safety, use condition-monitoring devices. Condition-monitoring devices include but are not
limited to these devices:
•
Pressure gauges
•
Flow meters
•
Level indicators
•
Motor load readings
•
Temperature detectors
•
Bearing monitors
•
Leak detectors
•
PumpSmart control system
1.7 Product approval standards
Regular standards
WARNING:
Use of equipment unsuitable for the environment can pose risks of ignition and/or explosion.
Ensure the pump driver and all other auxiliary components meet the required area classifica-
tion at the site. If they are not compatible, do not operate the equipment and contact an ITT
representative before proceeding.
All standard products are approved according to CSA standards in Canada and UL standards in USA.
The drive unit degree of protection follows IP68 See the nameplate for maximum submersion, according
to standard IEC 60529.
1.7 Product approval standards
Model 3410 Installation, Operation, and Maintenance Manual
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