When a power station in Northern
Ireland wanted its cooling water
pumps serviced, Belzona Authorised
Coating Centre, WGM Engineering
(Glasgow), won the tender to
overhaul two 48in CW circulating
pumps, each weighing more than 11t
without the motor.

Belzona 1111 (Super Metal), a twocomponent
repair composite based
in a ceramic steel reinforced polymer
system, was used on damaged
diffuser vanes, while Belzona 1311
(Ceramic R-Metal) was used for areas
of high erosion-corrosion pitting. It is
easily applied by hand to damaged
metallic components and protects
against erosion-corrosion. Belzona
1341 (Supermetalglide) was used for
the internal coating of fluid flow
areas such as impellors and diffusers.

The company says the coating, which
is used for efficiency enhancement,
has shown an improvement of up to
5% can normally be achieved when
coating new pumps.