The Runcorn plant of AAK
Foods has swapped an ageing
progressive cavity pump for a
MasoSine pump from Watson-
Marlow Pumps Group. The
company tried a progressive cavity
alternative, only to find it was taking
3h to strip, clean and rebuild – too
long for a company that undertakes
short runs. As a result, AAK Foods
turned to a MasoSine SPS4 sine
pump, which offers high performance
and quicker strip-down.

Ian Roberts, engineering manager,
explains: “Our pumps have to pump
everything from thin dressings to
coarse grain mustards and everything
in between. Furthermore, we need a
gentle acting pump.”
The pump’s suction capacity of
0.85 bar allows fast, efficient transfer
of high viscosity products from IBC
to filling line. Its gentle, low shear
action and large pumping chamber
help preserve and maintain product
integrity. Single rotor design and
inherent one shaft, one seal allow for
ease and speed of maintenance and
strip down. In addition, the 91.2m3/h
pumping capacity is twice that of the
original pumps.

The pump can be stripped,
cleaned and rebuilt in less than 1h.