Integrative notes to the operating manual for magnetic coupling centrifugal pumps conforming to the ATEX 94/9/CE directive TCK... - TBK... – TBAK…
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The pump must never run at a rotation speed lower than the one shown on the rate-plate and indicated on the
Confirmation of order, as it may be subject to the loss of priming and therefore hindered from sucking the liquid in and
therefore cause dry running.
Any wrong rotation speed may be due to an unsuitable electric motor or a motor not correctly installed or powered.
RESIDUAL RISK: Running of the motor at a higher speed than the foreseen will cause a
temperature rise. If the design speed is very much exceeded, this may cause breakage of the
elastic coupling.
POMPETRAVAINI cannot be held liable for any wrong choice of the motor if supplied or installed
by the end-user. The choice of the motor must always be done from the models which have a
certification according to ATEX 94/9/EC, which guarantees a safety level equal or higher than
that of the pump.
The electric connections must only be carried out by skilled and authorized persons who must
observe the instructions of the manufacturer of the electric motor and the national provisions in
force. This refers particularly to the selection of components correctly certified according to the
ATEX 94/9/EC Directive for a level of safety equal or higher than that of the pump.
7.8 – OPERATION WITH DIFFERENT LIQUIDS
The pump
must
be used only for the kind of applications specified and in operating conditions established in the
Confirmation of order for which POMPETRAVAINI has provided the execution, the materials used for manufacturing and
the test runs, which make the pump to be perfectly corresponding to the requirements. Therefore, the pump
MUST NOT
be utilised for different applications. In any other case, please contact POMPETRAVAINI, who declines any
responsibility for any use different from the foreseen one, when the respective approval has not been given. The
specifications for operation of the pump are shown on the identification plate, which can be easily identified on the pump
(Fig. 1),
and on the EC Declaration of conformity supplied together with the pump.
RESIDUAL RISK: Any use of the pump for applications different from those specified may cause
a quick deterioration of metal components, gaskets and mechanical seals with consequent
leakage to the outside.
8 – CHECKING BEFORE START-UP
Before the start-up of the pump, make sure that you are able to answer AFFIRMATIVELY to the
questions listed hereunder. (The list underneath may not be sufficiently complete in case of any
particular installation and operating conditions. In these cases, the user shall take appropriate
measures for the safety during operation).
-
Has this Manual been completely read and fully understood and observed in all its necessary points?
-
Are all accessories, devices, components - which are necessary or recommended for ensuring the safety
level required for the Zone of installation of the pump - correctly certified, installed and operated according
to the instructions of the manufacturer?
-
Have all controls required in Chapter 10 of the Operator’s Manual been passed POSITIVELY?
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Has this integrative booklet been compiled and undersigned in the following chapter by the persons in
charge?