USER’S MANUAL
V-line 899x.xxx/LPG HYBRID
18
4.5.3.
System VRC-E
Vapour Recovery Control - Electronic - control the flow of vapor through the proportional solenoid
valve controlled electronic counter dispenser.
Vapour recovery system VRC-E of fuel dispensers V-line 899x.xxx consists of the following basic
components (structural layout and design is evident from Figure 1, 2:
Position
Unit name
1
Flexible pipe with union nut M 16 x 1,5 for connection to outgoing pipe into storage
tank.
2
Piston vacuum pump
3
Flexible connecting pipe between the vacuum pump and electromagnetic proportional
valve
4
Electromagnetic proportional valve
5
Flexible connecting pipe between the electromagnetic proportional valve and coaxial
interpiece
6
Coaxial interpiece for connecting of coaxial delivery hose
7
Coaxial delivery hose
8
Delivery nozzle for vapour recovery
9
Electronic counter ADP1/T, ADP2/T
Pic. 5
Function of system VRC-E
The vacuum in the VRC-M system is created by piston vacuum pump (Item 2), which is powered via a
rubber belt of electric motor of pumping monoblock. For dispensers with pressure system is installed in a
compact unit - electric motor with integrated vacuum pump.
Outgoing petrol vapors from the tank car when dispensing petrol are drawn special nozzle adapter nozzle
(pos. 8) through the channel in the body of the nozzle flow through the inner coaxial hose DN 8 (pos. 7).
Inside of coaxial interpiece (pos. 6) pairs are guided to a flexible connecting pipe (pos. 4), then proceed
to the proportional solenoid valve (pos. 4). From the proportional valve through conecting flexible pipe
(pos. 3) guided to piston vakuum pump (pos. 2). From the piston pump (pos. 2) are drawn through flexible
pipe to outgoing pipe of petrol vapours (pos. 1) connected to imide space of storage tank (usually the
lowest octane petrol tank).
Optimal flow of vapor is dynamically regulated by proportional solenoid valve directly controlled
electronic counter, depending on the flow rate of liquid petrol respective meter. Electronic counter
controls the flow of vapor based on information about the volume flow meter calculator from magnetic
pulse transmitter.
