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5.1.4.2 Pulser
The pulser is sealed by means of a wire which passes through a special seal screw securing the
top and bottom covers of the pulser and then through a screw which is fastened to the bottom
cover of the pulser only. It is then drawn taught and sealed.
5.1.4.3 Alternative Sealing
Having the meter and pulser sealed by means of a wire routed as shown in figure 25 drawn
taught and sealed.
The sealing as shown should be such that, as well as sealing the individual components, it is
not possible to remove them from the dispenser frame without breaking a sealing wire.
5.1.3 Authorised Alternatives
5.1.3.1 Having a single meter being fed by a pumping unit described at section 5.1.1.
This high speed single hose version has a maximum flowrate of approximately 80 litres per
minute. The remaining of the hydraulic unit is as described in this amendment.
5.1.3.2 Having the gas detector device removed from the pumping unit described at
section 5.1.1
5.1.3.3 Having the PAS 130 pumping unit with max flow of 80 litres a minute.
5.1.3.4 Having the-PAS 130/8 pumping unit with a max flow of 130 litres per minute
5.2 Alternative Tokheim hydraulic unit PAS V3
As described in the Certificate but replacing the existing hydraulics with the Tokheim PAS V3
hydraulic unit that can be configured with different combinations of meters and nozzles to give
different maximum flow rates (Qmax). A typical arrangement within the alternative Pegasus
enclosure is shown in Figure 26.
5.2.1 Pumping unit
This unit comprises a motor driven pumping unit, with integral air separator and associated
non-return and pressure relief valves, feeding one or two meters, directly mounted horizontally
on the pumping unit. The complete assembly can be identified by the ‘sticker’, as shown in
Figure 27, attached to the body of the pumping unit.
5.2.1.1 Standard delivery rate (Qmax 40 L/min)
For the standard delivery rate the pumping unit is connected to two meters each feeding one
hose and nozzle at a maximum flow rate of 40 litres per minute. This configuration is suitable
for use with petrol and diesel.
5.2.1.2 High speed delivery rate (Qmax 80 L/min)
For the high speed delivery rate the pumping unit is connected to one meter feeding one hose
and nozzle at a maximum flow rate of 80 litres per minute. This configuration is suitable for
use with petrol and diesel.
(98 strony)
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