A change in the style of pump used in a milk transfer application resulted in significant benefits for a food manufacturer in North Yorkshire.
The original design for the milk
transfer system had a lobe pump fitted;
however, this wasn't performing properly
and was struggling to pump the milk. In
an attempt to rectify the situation, the
customer had then fitted a diaphragm
pump which offered a slight improvement
but was still not satisfactory.
After Rotor Technical Services'
pump specialist carried out an onsite
inspection, it was confirmed that the
diaphragm pump wasn't the correct
pump for this application either. Rotor
proposed a fully stainless steel Fristam
Hygienic Rotary Screw pump, arranging
a one-month trial to allow the customer to assess the recommended pump's
performance and ensure it was entirely
satisfied with it before committing to a
purchase.
The trial proved successful, and the
rotary screw pump offered the customer
several benefits. The air required to
drive a diaphragm pump is considerably
more expensive than the electricity
needed to drive an equivalent screw
pump. Diaphragm pumps have high
running costs due to failing diaphragms,
non-return valves, air valves, etc. They
are also notoriously difficult to clean
effectively without proper operator
protocols, where the rotary screw pump
supplied was suitable for clean in place
(CIP) procedures.
rotortechnicalservices.co.uk