10
BIJUR DELIMON INTERNATIONAL
BA_2017_1_GB_PVB
7.
EXAMPLES OF ORDER
By combining two outlets the metered quantity is doubled. If an outlet is closed, in order to obtain an odd number of outlets,
this leads to a metered quantity ratio of 2:1 at one outlet. If equal metered quantities are required, all the outlets must be
coded as combined outlet pairs. The following examples show frequently used configurations for 2 - 6 outlets:
2 x 0,6 cm
3
3 x 0,4 cm
3
4 x 0,4 cm
3
6 x 0,2 cm
3
P V B 0 6 A _ _ F F A _ _
P V B 0 6 A _ _ B C B_ _
P V B 0 8 A _ _ F A F A _ _
P V B 0 6 A _ _ A A A _ _
8.
NOTES ON DISTRIBUTOR DESIGN
Quantity ratios
The basis of the distributor design is the number of all lubricant points to be supplied with the required lubricant/time unit.
From this the available quantity ratios are calculated. The aim is to achieve the desired quantity of lubricant in “X” number of
distributor cycles. The specified metered quantity/ cycle is not relevant for the supply to the lubrication points. It does not
make any difference in practice whether a distributor dispenses e.g. 3 x 0.4 or 3 x 0.8 cm
3
on the lubrication points per cycle.
The crucial factor is only the pumping capacity and its distribution over the PVB distributor, as the following example shows.
Pumping capacity:
12 cm
3
/min
Distributor configuration 1: 3 x 0.4 cm
3
Distributor configuration 2: 3 x 0.8 cm
3
In both cases the 3 lubrication points each receive 4 cm
3
/min, since the distributors divide the lubricant into three equal
quantities.
Distributor 1 thus clocks 10 cycles/min, distributor 2 needs only 5 cycles/min due to the higher metered quantity and simply
runs more slowly. Thus only the cycle frequency of the distributor changes.
Monitoring (can be selected as an option)
In a closed progressive system it is recommended to monitor the distributors, in order to allow you to observe and control
how the system is working. Electrical monitoring can be used not only for monitoring the function of the system, but also as
an indicator for the automatic control of the system. The required supply quantity is programmed, with breaks and
monitoring time, via the number of distributor cycles.
Which distributors are monitored in the progressive system?
If a progressive system consists of main and sub-distributors, only the main distributors are monitored electrically as a rule.
Visual monitoring is sufficient for the sub-distributors. The following illustration shows a typical system design with PVB main
and sub-distributors.
