▪
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 operation specified in the data sheet or
product literature (Q
min
2)
and Q
max
3)
) (prevention of damage such as shaft
fracture, bearing failure, damaged mechanical seal, etc).
▪
When handling untreated waste water the duty points in continuous operation
lie within 0.7 to 1.2 x Q
opt
4)
to minimise the risk of clogging/hardening.
▪
Avoid duty points for continuous operation at very low speeds and small flow
rates (<0.7 x Q
opt
4)
).
▪
Observe the information on the maximum flow rates provided in the data sheet
or technical product literature (prevention of overheating damage, cavitation
damage, bearing damage, etc).
▪
Do not throttle the flow rate on the suction side of the system (prevention of
cavitation damage).
▪
For any operating modes which are not specified in the data sheet or product
literature, contact the manufacturer.
▪
Only use the respective impeller types in combination with the fluids described
below.
Impeller with cutter
(impeller type S)
Suitable for the following fluids:
Faeces, domestic sewage and waste water
containing long fibres
Free-flow impeller
(impeller type F)
Suitable for the following fluids:
Fluids containing solids and stringy
material as well as fluids with entrapped
air or gas
Closed single vane
impeller
(impeller type E)
Suitable for the following fluids:
Fluids containing solids and stringy
material
Closed multi-vane
impeller
(impeller type K)
Suitable for the following fluids:
Contaminated, solids-laden, non-gaseous
fluids not liable to plait
2)
Minimum permissible flow rate
3)
Maximum permissible flow rate
4)
Optimum efficiency
2 Safety
Amarex KRT
9 of 74
Goodnal STP ST041 Sewage Delivery (Amarex KRT Submersible Motor Pump) Vendor Manual
Q-Pulse Id VM362
Active 29/10/2013
Page 11 of 96
