Elmo Rietschle L-BV3 - Manual (Page 18)

Commissioning
610.444430.40.000 18 / 32 © Gardner Denver Deutschland GmbH
7.3 Operation with operating-liquid feed
See Fig. 5, Pg. 18, and Fig. 8, Pg. 19, as well
as Fig. 6, Pg. 19, and Fig. 7, Pg. 19.
Proceed as follows here:
Method A:
1) Set pre-pressure of operating liquid (Fig. 5,
Pg. 18):
 Set a pre-pressure p
A
in the feed pipe for
the operating liquid (Item A) around
approx. 100 kPa [14.5 psi] above the inlet
pressure p
B
in the inlet pipe (Item B).
A
P A =P B +100 kPa
P A =P B +14,5 psi
B
6104443001006
Fig. 5: Setting the operating-liquid flow rate:
Setting pre-pressure
A Feed pipe for operating liquid
B Inlet
pipe
2) Start up the unit:
For non-automatic operation (Fig. 6, Pg. 19):
 Open the stop valve (Item 4) manually.
The operating liquid is fed in.
 Switch on the unit.
For automatic operation (Fig. 7, Pg. 19):
 Switch on the unit.
 The solenoid valve (Item 4) opens
and the operating liquid is fed in.
Method B:
1) Start up the unit:
For non-automatic operation (Fig. 6, Pg. 19):
 Open the stop valve (Item 4) manually.
The operating liquid is fed in.
 Switch on the unit.
For automatic operation (Fig. 7, Pg. 19):
 Switch on the unit.
 The solenoid valve (Item 4) opens
and the operating liquid is fed in.
2) Check the operating-liquid flow rate:
 with the flow meter (Fig. 6, Pg. 19, and
Fig. 7, Pg. 19, Item 2)
OR
 by measuring the volume of operating liquid
per unit of time that exits at the discharge
connection with a graduated vessel (Fig. 8,
Pg. 19)
3) Set/correct the operating-liquid flow rate:
 via the control valve (Fig. 6, Pg. 19, and
Fig. 7, Pg. 19, Item 3)
Nominal operating-liquid flow rate:
For nominal values, see Chapter 3.3,
"Operating conditions", Section "Nominal
operating-liquid flow rate", Pg. 8.