USER’S MANUAL
V-line 899x.xxx
13
Hydraulic system of the fuel dispenser V-line 899x.6x2
The integrated hydraulic unit consists of a pumping monoblok (pos. 1) with an integrated large-surface
filter (pos. 2), a meter (pos. 3) with integrated magnetic pulse transmitter (pos. 4) connected with the
pumping monoblok (pos. 1) through a special joining piece (pos. 8) and a driving el. motor (pos. 13) of
the pump.
Pumping monoblock
type series P 64x.xxx/x (pos. 1) – is an independent unit for one kind of the
pumped fuel. An integrated compact structure contains an efficient filter (pos. 2), sliding vane pump,
control and non-return valves, safety relief valve with continual control of the operating pressure,
cyclone (centrifugal) gas separator and a venting chamber with a float valve. Progressive design provides
100 % separation of gaseous components and automatic blocking of filling when excessive amount is
identified in the product pumped.
The large-surface filter with an integrated non-return valve and standard filtration efficiency 30 µm
for petrol and optional 30 µm or 60 µm for Diesel oil (winter operation in extreme low
temperatures).
The pumped liquid passes through the filter (pos. 2) and the non-return valve to the pump and the
separator where gases and vapours are separated and pass to the float chamber. Condensed liquid is
discharged to the suction part of the pump and gases are exhausted to the vented part of the dispenser
base. The liquid is discharged from the non-return valve to the meter (pos. 3), then through an
electromagnetic valve (pos. 5) into the dispensing hose with a dispensing nozzle at its end. The
dispensing nozzle lever controls the rate flow. A tube sight glass can be installed between the dispensing
hose and the nozzle for visual checking.
A three-phase asynchronous motor (pos. 13) drives the pump by means of an antistatic V-belt (pos. 11).
Special modifications of the pumping monoblok of P 64x.xxx/x/BIO series is intended to measure
the volume of biofuel - a mixture of automotive petrol with bioethanol (E10 - E 85).
It has a special surface protection, which ensures their high resistance against aggressive biofuels.
Dispensers V - line 899x.xxx/P series (pressure design) differ from suction dispensers because they are
not equipped with the pumping monoblock. A safety breaking valve shall be fitted in the connection.
The valve prevents fuel leakage in case of the dispenser damage. This valve is not a part of the
dispenser, as well as the pump, which is located in the underground tank. The pressure dispensers are
equipped with an inlet spherical valve for closing the liquid input in case of repairs.
