▪ The pump must only be used to handle the fluids specified in the data sheet or
product literature of the respective design variant.
▪ Never operate the pump without the fluid to be handled.
▪ Observe the minimum flow rates indicated in the data sheet or product literature
(to prevent overheating, bearing damage, etc).
▪ Observe the maximum flow rates indicated in the data sheet or product
literature (to prevent overheating, mechanical seal damage, cavitation damage,
bearing damage, etc).
▪ Do not throttle the flow rate on the suction side of the pump (to prevent
cavitation damage).
▪ Consult the manufacturer about any use or mode of operation not described in
the data sheet or product literature.
▪ Only use the different impeller types in combination with the fluids described
below.
Table 4: Applications of impeller types
Impeller type Suitable for the following fluids
Closed channel
impeller
(K impeller)
Contaminated, solids-laden fluids, not
liable to plait, without or with very little
entrapped gas.
Open multi-
vane impeller
(O impeller)
Uncontaminated or slightly contaminated
fluids as well as fluids liable to form
deposits and bunch, with little entrapped
gas.
Open free flow
impeller
(F impeller)
Fluids containing larger solids and matter
liable to plait as well as fluids with
entrapped air or gas.
Preventio n o f foreseeable m i s u se
▪ Never open discharge-side shut-off elements further than permitted.
–
The maximum flow rate specified in the data sheet or product literature
would be exceeded.
– Risk of cavitation damage
▪ Never exceed the permissible operating limits specified in the data sheet or
product literature regarding pressure, temperature, etc.
▪ Observe all safety information and instructions in this manual.
2.4 Personnel qualification and training
All personnel involved must be fully qualified to install, operate, maintain and
inspect the machinery this manual refers to.
The responsibilities, competence and supervision of all personnel involved in
installation, operation, maintenance and inspection must be clearly defined by the
operator.
Deficits in knowledge must be rectified by sufficiently trained specialist personnel
training and instructing the personnel who will carry out the respective tasks. If
required, the operator can commission the manufacturer/supplier to train the
personnel.
2 Safety
KWP
9 of 78
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