Goldacres BETA 110, Руководство оператора и каталог запасных частей

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General Information and
Specs
General
Diaphragm pumps are constant displacement
pumps providing a consistent flow, largely
unaffected by changes to operating pressure.
Diaphragm pumps have good suction capacity
and can easily self prime, they can also run
dry without damage. On Goldacres sprayers
we supply the operator with the pump RPM
and therefore the operator can be confident
of the flow rate of the pump and confident
the agitation to sprayer tank is consistent,
even when quite large changes to operating
pressures are made.
Centrifugal pumps - It is not possible to
be certain of the pump flow by monitoring
pump speed and the limited suction capacity
of a centrifugal pump adds a further area of
uncertainty to pump output. Centrifugal pumps
flow rate varies considerably with pressure
changes.
Maintenance - It is sometimes claimed
centrifugal sprayer pumps require less
maintenance than diaphragm pumps. At
Goldacres we have not found this to be the
case. Cast iron pumps are subject to chemical
erosion. Centrifugal pumps which are run
dry even for short periods can be severely
damaged.
Flow Vs Pressure .
The flow output by diaphragm pumps are
largely unaffected by changes to operating
pressure.
For example:
UDOR 250 l/min pump @ 500rpm
0 Bar = 225.7 l/min output
10 Bar = 223.1 l/min output
Maximum achievable flow to the
boom .
Goldacres design sprayers so that the flow to
the boom should be approximately half the
stated maximum flow of the pump - this is due
to the pump also needing to supply agitation
to the main tank. For example a 250 l/min
pump should realistically achieve a maximum
flow of approximately 125 l/min to the boom.
Goldacres Crop Cruisers are fitted with
hydraulic drive diaphragm pumps.
Trailed Sprayers - Hydraulically driven pumps
are becoming more common as tractors
come out with more hydraulic outlets. Fitting
a hydraulic drive to the pump eliminates any
maintenance or safety issues that are often
associated with PTO shaft drives.
The UDOR diaphragm pumps fitted to
Goldacres sprayers do not require a coupling
between the hydraulic motor and pump. The
MI pump is fitted with a flange which will
accept this motor shaft. A hydraulic drive is
required for tractors fitted with 1000 RPM PTO
drives. Standard diaphragm pump RPM is 540.
To measure pump RPM with a hydraulic drive
fitted an RPM sensor is fitted on the shaft
of the pump which will provide you with a
readout that will be shown on your controller.
There are many factors that can change how
often a pump needs to be serviced - however
it is common for pumps to be serviced
annually as preventative maintenance which
will ensure reliability when the sprayer is in
operation.
A quality multigrade engine oil should be used
in the pump.
Pump Identification
The label on the pump bears the model, the
code, the serial number and the main technical
specifications with the maximum operational
values of the product. The specimen at the
side is an example of a label and its position
on the Pump.
IC - 1⅜” 6 Spline PTO
TS2C - Through Shaft,
1⅜” 6 Spline PTO
both sides
MI - 25.4mm Internal
hole for a Hydraulic
motor.
VA - Mounting surface
for gear box drive,
(engine Drive).