SER
VICING
119
PULSE Installation, Commissioning and Servicing Manual - Revision 19
23
APPENDIX - BLENDING INFORMATION
23.1 Flow
The diagram below demonstrates the hydraulic flow of the blending dispenser. Although
both the component fuels and the blended fuel can be any octane, this diagram refers to
91
and
98
as the component fuels. The blended grade is referred to as
95
.
Upon nozzle lift, the blended grade
95
draws the correct ratio of each component fuel
(
91
and
98
) from their respective submersible pumps. Solenoid valves
1
and
5
open
proportionally to control the ratio. The correct proportions of each component grade
enter the blending manifold before being dispensed in the conventional way via valve
3
which controls the flow rate.
Figure 47� Hydraulic Flow
Blending Manifold
Base
Valves
Out
Valves
Meter
Meter
Motor 2
Motor 1
non-return valves
Valve
4
Valve
3
Valve
2
Valve
1
Valve
5
95 Blend
1
&
5
open proportionally
to control the ratio
3
controls the flow rate
91
98
Submersible
Pump
Submersible
Pump
91
98
Meter
Motor 3
Valve
6
Diesel
Submersible
Pump
D