Verderflex Dura 10, Operating Manual

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Dura 5 - 35 4.0v-06.2013 22 | Page
7.5 Ordering spare parts
For trouble-free replacement in the event of faults,
we recommend keeping spare parts available on
site.

The following information is mandatory when ordering
spare parts (→ Name plate):
– Pump model
– Year of manufacture
– Part number / Description of part required
– Serial number
– Quantity
8. Storing pumps and hoses
Verderflex pumps are designed for continuous use,
however, there may be instances when pumps are
withdrawn from use and stored for extended periods.
We recommend certain pre-storage actions and
precautions be taken whilst pumps and their
components are not in use.
Similarly, hoses and lubricants may be held in stock
to service working pumps and their recommended
storage conditions are advised.
8.1.1 Pre-Storage Actions
– The hose should be removed from the pump and
lubricant drained out from the pump casing.
– The pump casing should be washed out allowed to dry
and any external build up of product removed.
8.1.2 Cleaning Protocol for hoses
VERDERFLEX hoses should be cleaned with the
following protocol –
NR and NBR Hoses:
1 First flush 0.5% Nitric Acid (HNO3) solution at up
to 60°C
2 Second flush 4% Caustic soda (NaOH) solution
and eventually steamed open ends for 15
minutes at up to 110°C
EPDM Hoses:
1 First flush 2.0% Nitric Acid (HNO3) solution at up
to 80°C
2 Second flush 10% Caustic soda (NaOH) solution
and eventually steamed open ends for 30
minutes at up to 130°C
- Final flush: flush with clean water to remove all
traces of cleaning solutions
- Under no circumstances should VERDERFLEX
NBRF food grade hoses be cleaned with Sodium
hypochlorite (NaOCl) based cleaning solutions,
neither should the above concentrations,
exposure, durations or temperatures be
exceeded.
8.1.3 Storage Conditions
– Pumps should be stored in a dry environment, out of
direct sunlight. Depending on these conditions, it may
be advisable to place a moisture-absorbing product,
such as Silica gel, inside the pump’s casing or to coat
the pump’s inner surfaces with moisture-repelling oil,
such as WD40, whilst the pump is stored.
– Gearboxes may require intermittent attention as
indicated by the gearbox manufacturer’s
recommendations.
– Hoses should be stored as supplied in their wrapper
and should be stored away from direct sunlight and at
room temperature with end caps fitted.
– Lubricants should be stored under normal warehouse
conditions with their caps securely fastened.