28
mAtERiAlS/SOlidS PROCESSing
Pumps, valves and filters:
advances in materials handling
T
he biggest leap forward in and suction and discharge pipes remain
Every process relies
progressing cavity (PC) pumps in untouched.
on pumps, valves and
20 years. That’s the dramatic claim It offers dry run protection and all
filters and the latest
that Mono is making for its new operational parameters are unaffected. The
launches focus on
EZstrip pump, the latest addition to its well- model range has a capacity of up to 165m3/h
ease of maintenance, known Compact C range. and 12 bar pressure, and is available in
fouling prevention and
EZstrip has been specifically designed to either cast iron or stainless steel. WRAS
customisation. Sean
provide a quick and easy way to disassemble, compliant elastomers are incorporated into the
Ottewell reports.
de-rag and maintain a PC pump in-situ, manufacture of this pump and a pre-assembled
eliminating the costly maintenance and down drive train, with two-year warranty, is also
Chaque processus
time that servicing can often cause (Fig. 1). available.
dépend de pompes, de
Commenting on the launch of the EZstrip, Another PC pump innovation from Mono is
vannes et de filtres et les
Simon Lambert, Mono’s general manager for the new Chroma range, which is designed to
tous derniers lancements Europe, said: “We surveyed our customer be directly interchangeable with the seepex BN
se concentrent sur la base in the waste water industry to find out series.
facilité de l’entretien, la
what common problems they were facing. According to the company, replacing a
prévention de la pollution
The overriding response was that ragging current asset with a pump from the Chroma
et la personnalisation.
was becoming a serious problem, primarily range means that users will never be left
Reportage de Sean
Ottewell.
because more and more unsuitable items are waiting for replacement pumps and parts from
finding their way into the sewers. Current unresponsive suppliers.
options available to engineers are limited, time As an example, one customer was faced
Jeder Prozess verlässt
consuming and in some cases unsafe. Our aim with increased maintenance costs to a number
sich auf Pumpen, Ventile was to produce a pump that would minimise of sewage sludge pumps and a decision was
und Filter und die
plant downtime and maintenance and with the required to either repair or replace the existing
neuesten
new EZstrip pump we have more than met the pumps. Both options were expensive and
Produktentwicklungen
challenge.” alternative technology was also considered to
konzentrieren sich auf
Once the company had addressed the transfer the sludge, but again this attracted high
einfache Wartung,
Verschmutzungs-
ragging issue, it realised the potential of the installation costs.
prävention und
product to minimise the time and cost involved The Mono Chroma option was the ideal
individuelle Anpassung.
in every aspect of maintaining a PC pump. On solution. For less than the cost of the internal
Sean Ottewell berichtet. average, says the company, the EZstrip can pump parts and substantially less than
reduce the maintenance time needed to replace purchasing a replacement pump or other
a rotor, stator, coupling rod and drive train by pumping technology, the Chroma pump was
95 per cent. The average time to completely supplied.
➠
strip down a pump and replace the
drive train elements is one full day;
the Mono EZstrip reduces this to just
a 30-minute job.
“Many of our customers can’t
believe that it is possible to de-rag
and maintain a pump so quickly, so
we have produced a video, which
is now posted on our website. This
shows just how easy the EZstrip
makes de-ragging and maintenance
of a PC pump - using just spanners
and an Allen key,” added Lambert.
The new pump can be installed
into new plants or retrofitted into
existing Compact C installations. No Fig. 1. Costly maintenance and down time during
electrical disconnection is required servicing are both eliminated.
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