Elmo Rietschle L-BV5 Operating instructions - Manual (Page 16)

Installation
610.44440.40.000 16 / 32 © Gardner Denver Deutschland GmbH
5.2.1 Connecting the suction and discharge
connections
CAUTION
If the unit is connected to a vacuum tunnel
the operating-liquid can be drawn out of the
unit into the system risking damage to the
system.
 Fit a check valve in the suction line.
CAUTION
The tightening torque for piping connections to
the suction and discharge connections may not
exceed 100 Nm [73.8 ft lbs]!
CAUTION
When attaching pipelines / hoses, make sure
that these are free from mechanical stresses.
CAUTION
In the case of gases / vapours containing
impurities:
 if necessary a filter, strainer or separator
should be installed in the suction line.
CAUTION
In order to prevent residues left over from instal-
lation work (e.g. welding beads) entering the
unit, an intake strainer should be fitted in the
suction line for the first 100 operating hours.
Connection sizes, suction / discharge connec-
tions
Type
Connection
2BV2 06. Threaded end G1
2BV2 07. Threaded end G1 1 /
2
2BV5 11. Flange 50 ND10-DIN 2501 or
ANSI-B16,5-2-150
Gasket DN50 PN40 DIN EN 1514-1
form FF
2BV5 12.
2BV5 13. Flange 65 ND10-DIN 2501 or
ANSI-B16,5-2 1/2-150
Gasket DN65 PN6 DIN EN 1514-1
form FF
2BV5 16. Flange 80 ND10-DIN 2501 or
ANSI-B16,5-3-150
Gasket DN80 PN6 DIN EN 1514-1
form FF
2BV5 410 Flange 50 ND10-DIN 2501 or
ANSI-B16,5-2-150
Gasket DN50 PN40 DIN EN 1514-1
form FF
The inlet connection (item 8, page 3) is marked
with an arrow pointing downward. The gases /
vapours are drawn inward in this direction.
 Connect the system suction line.
The discharge connection (item 7, page 3) is
marked with an arrow pointing upward. The
gases / vapours as well as the operating-liquid
are expelled in this direction.
 Connect the system discharge line.
5.2.2 Making the operating-liquid connec-
tion
CAUTION
In the case of operating-liquid with impurities:
 if necessary a filter, strainer or separator
should be installed in the supply line.
ATTENTION
If the operating-liquid is highly calciferous:
 soften the operating-liquid
OR
 decalcify the unit regularly (chapter 9.1,
"Maintenance", page 26).
Connection sizes, operating-liquid inlet
Type
Connection
2BV2 0 Threaded tapping G 3 /
8
, 12 mm deep
2BV5 1
Cast iron Threaded tapping G 3 /
4
, 24 mm deep
2BV5 1
Stainless
steel Threaded tapping G 3 /
4
, 24 mm deep
OR
flange in accordance with
EN 1092-PN40-DN15 and
ANSI-B16.5-1/2-150
2BV5 410 Threaded tapping G 3 /
4
, 24 mm deep
 Connect the operating-liquid supply line to the
operating-liquid inlet (item 6, page 3).