26 | june 2014 | WWT | www.wwtonline.co.uk
Because non-
standard motors
were required
AxFlow had to
make special
adaption plates
to accommodate
them. In turn,
because those
new non-standard
motors had larger
sha s, bespoke
couplings had to
be fabricated to
allow them to be
coupled up to the
existing prop-
sha s
Project focus: South East Water pump refurbishment
motors were required AxFlow, who
were awarded the contract, had to
make special adaption plates to
accommodate the motors. In turn,
because those new non-standard
motors had larger shas, bespoke
couplings had to be fabricated to
allow them to be coupled up to the
existing propshas.
The refurbishment of all
three pumps, together with the
installation of the new motors and
recommissioning was completed
last summer. With all three
refurbished pumps now installed and
commissioned, Bray Gravels has the
capacity to pump up to 360 megalitres
per day at a head up 11.5bar, using
just two pumps.
By sharing the load at peak
demand, the pumps can operate
within their curves and can be run at
lower speeds, thereby removing the
potential for cavitation.
The pumps and motors have been
given a new lease of life and South
East Water can look to many more
years of service from Bray Gravels.
For further reading go to
wwtonline.co.uk
www.wwtonline.co.uk | WWT | JUNE 2014 | 27
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