Peripheral pumps have higher head
coefficients and steeper characteristic
curves than side channel pumps.
As the flow rate increases, peripheral
pumps' input power decreases.
Multistage pumps are peripheral
pumps that have multiple blade wheels
arranged at the different diameter levels of the impeller.
Peripheral pumps, also referred
to as regenerative pumps
(also see Side channel pumps),
are centrifugal pumps whose impeller
(see Peripheral impeller)
rotates in a largely concentric casing
channel with an inlet and an outlet opening.
Peripheral pumps operate by
means of an impeller characterised
by a large number of small dual-flow
radial blades (with dual input)
arranged along its peripheral area.
The centrifugal forces inside the
rotor generate a circulatory flow
between the impeller and the casing
channel.
A pump is a device that moves fluids
(liquids or gases), or sometimes slurries,
by mechanical action,
typically converted from electrical
energy into hydraulic energy.
On the other hand, they have
a better capacity.
Another very striking advantage
lies in the fact that these products
are very inexpensive to purchase.
For these reasons, they are widely
used in the home to pump clean water
, without abrasive particles or chemical liquids.
