WDX USER INSTRUCTIONS ENGLISH 71576322 06-05
Page 8 of 46
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1.6.4.5 Preventing sparks
To prevent a potential hazard from mechanical
contact, the coupling guard must be non-sparking.
To avoid the potential hazard from random induced
current generating a spark the ground contact on the
baseplate must be used.
Avoid electrostatic charge: do not rub non-
metallic surfaces with a dry cloth, ensure cloth is
damp.
The coupling must be selected to comply with 94/9/EC
and correct alignment must be maintained.
Additional requirements for metallic pumps on
non-metallic baseplates
When metallic components are fitted on a non-metallic
baseplate they must be individually earthed.
1.6.4.6 Preventing leakage
The pump must only be used to handle liquids
for which it has been approved to have the correct
corrosion resistance.
Avoid entrapment of liquid in the pump and associated
piping due to closing of suction and discharge valves,
which could cause dangerousexcessive pressures to
occur if there isheat input to the liquid. This can occur if
the pump is stationary or running.
Bursting of liquid containing parts due to freezing must
be avoided by draining or protecting the pump and
ancillary systems.
Where there is the potential hazard of a loss of a seal
barrier fluid or external flush, the fluid must be
monitored.
If leakage of liquid to atmosphere can result in a
hazard, the installation of a liquid detection device is
recommended.
1.6.4.7 Maintenance to avoid the hazard
CORRECT MAINTENANCE IS REQUIRED TO
AVOID POTENTIAL HAZARDS WHICH GIVE A RISK
OF EXPLOSION
The responsibility for compliance with maintenance
instructions is with the plant operator.
To avoid potential explosion hazards during
maintenance, the tools, cleaning and painting
materials used must not give rise to sparking or
adversely affect the ambient conditions.
Where there is a risk from such tools or materials;
maintenance must be conducted in a safe area. It is
recommended that a maintenance plan and schedule
is adopted. (See section 6,
Maintenance.)
1.7 Safety labels summary
1.7.1 Nameplate
For details of nameplate, see the
Declaration of
Conformity,
or separate documentation included with
these User Instructions.
1.7.2 Warning labels
Oil lubricated units only:
1.8 Specific machine performance
For performance parameters see section 1.5,
Duty
conditions
. When the contract requirement specifies
these to be incorporated into User Instructions these
are included here. Where performance data has been
supplied separately to the purchaser these should be
obtained and retained with these User Instructions if
required.
