working principle
V pumps are
submersible vortex pumps,for dirty water,designed mainly for
domestic use and industrial use. Their operating principle is
that of a centrifugal pump with a retracted vortex impeller.A
large sized ring chamber with a threaded delivery opening is
machined in the pump body and closed by a cover, housing the
suction opening, which is shaped to prevent suspended solid
over a certain size from entering the pump.Since the impeller
is retracted with respect to the cover,water entering the
front chamber lying between these two components assumes a
vortex motion and is centrifuged into the ring chamber,leaving
the pump via the delivery opening.
pump installation and applications
V
pumps are designed to lift dirty water which is not chemically
aggressive to the pump components.In all cases where suspended
solids up to ¦Õ30mm have to be dealt with. Recommended
applications therefore incLude draining flooding in confined
areas such as basements and garages ,and also pumping domestic
waste and the disposal of waSte water, containing fibrous
matter and is also widely used in many factories. These pumps
are easy to install and dependable when used automatically in
fixed installations. A purposely built pit with minimum
dimensions 450x450x450 mm is recommended for fixed
installations,to provide total drainage and allow correct
operation of the float switch. This system automatically
starts the pump when the fluid reaches a preset level,stopping
it once the fluid has been emptied. Installing a suitable
non-return valve on the delivery pipe prevents reverse flow
when the pump stops.
structural characteristics
¡ù stainless
steel pump body
¡ù stainless steel mechanical seal (graphite
to ceramic or SiC to graphite)
¡ù stainless steel shaft
¡ù with float switch or without
¡ù cast iron impeller or
nylon impeller with technopolymer open type.
¡ù with thermal
overload protector in single phase
motor
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