Elmo Rietschle L-BV5 Operating instructions - Manual (Page 22)

Operation
610.44440.40.000 22 / 32 © Gardner Denver Deutschland GmbH
7.3 Operation with self-suction of the oper-
ating-liquid
 When switching the unit on there should be a
vacuum in the suction line (item 8, Fig. 10,
page 17) of min. 900 mbar abs. [13.1 psia].
 When switching on the liquid level in the sup-
ply line (item 7, Fig. 10, page 17) or in the
storage vessel (item 9, Fig. 10, page 17) must
be at the same level as the operating-liquid
connection on the unit (item a, Fig. 10,
page 17).
 During operation the liquid level in the storage
vessel (item 9, Fig. 10, page 17) may not sink
below approx. 1 m [3.28 ft] under the level of
the operating-liquid connection (item b, Fig.
10, page 17).
Starting the unit up
 Switch on the power supply.
 The unit begins to draw in the operating-liquid
and the gases / vapours to be handled.
Switching the unit off:
 Switch off the power supply.
 The unit ceases drawing in the operating-
liquid and the gases / vapours.
7.4 Checking and correcting the operating-
liquid flow-rate
 using the flow meter (item 2Fig. 8, page 17, or
item 2, Fig. 9, page 17)
OR
 by measuring the quantity of operating-liquid
per unit of time flowing from the discharge
connection using a measuring cup (Fig. 14,
page 22)
B C
610.44440.99.B15
B Operating-liquid supply line
C Discharge line
Fig. 14: Adjusting the operating-liquid flow-rate:
Measuring the flow-rate using a measuring
cup
Correcting the operating-liquid flow-rate for
unit with operating-liquid supplied
 Correct the operating-liquid flow-rate by
means of the throttle valve (item 3, Fig. 8,
page 17, or item 3, Fig. 9, page 17).
see the table, "Design operating-liquid flow",
page 11.
For self-suction of operating-liquid the oper-
ating-liquid flow-rate varies as follows:
The higher the suction pressure, the lower the
operating-liquid flow-rate.
The lower the suction pressure, the lower the
operating-liquid flow-rate.