2 Safety
9 of 60
Sewabloc
2.3 Intended use
▪
The pump set must only be operated within the operating limits described in the
other applicable documents.
▪
Only operate pump sets which are in perfect technical condition.
▪
Do not operate partially assembled pump sets.
▪
Only use the pump to handle the fluids described in the data sheet or product
literature of the pump model.
▪
Never operate the system without the fluid to be handled.
▪
Observe the limits for continuous duty specified in the data sheet or product
literature (Q
min
and Q
max
) (to prevent damage such as shaft fracture, bearing
failure, mechanical seal damage, etc).
▪
When untreated waste water is handled, the duty points in continuous operation
lie within 0.7 to 1.2 × Q
opt
to minimise the risk of clogging/hardening.
▪
Avoid duty points for continuous operation at very low speeds and small flow
rates (< 0.7 × Q
opt
).
▪
Observe the minimum flow rate and maximum flow rate 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 system (prevention of
cavitation damage).
▪
Consult the manufacturer about any use or mode of operation not described in
the data sheet or product literature.
▪
Only use the respective impeller types in combination with the fluids described
below.
Free-flow impeller
(impeller type F/F-max)
Suitable for the following fluids:
fluids containing solids and stringy material as well as fluids with
entrapped air or entrapped gas
Open, diagonal single-channel
impeller
(impeller type D)
Suitable for the following fluids:
fluids containing solid substances and long fibres
Closed multi-channel impeller
(impeller type K/K-max)
Suitable for the following fluids:
contaminated, solids-laden, non-gaseous fluids without stringy
material
Prevention of foreseeable misuse
▪
Observe the minimum flow velocities required to fully open the swing check
valves to prevent the reduction of pressure and risk of clogging.
(Contact the manufacturer for the required minimum flow velocities/loss
coefficients.)
▪
Never exceed the permissible application and 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 transport, install, operate, maintain
and inspect the machinery this manual refers to.
The responsibilities, competence and supervision of all personnel involved in
transport, installation, operation, maintenance and inspection must be clearly
defined by the operator.
Deficits in knowledge must be rectified by means of training and instruction
provided by sufficiently trained specialist personnel. If required, the operator can
commission the manufacturer/supplier to train the personnel.
Содержание Sewabloc Series
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