GA01300_0902 - 04/2006 - © by Leybold Vacuum
18
Installation
3.3
Connection to the System
When operating the pump with PFPE observe the additional infor-
mation provided in Chapter 1.2 and Operating Instructions GA
07.009.
Before connecting the TRIVAC BCS, remove the shipping seals from the
connection flanges (7/2) and (7/3).
Retain the shipping seals in case you need to store the pump in the future.
The pump is shipped with intake and exhaust flanges mounted for hori-
zontal connection of the connecting lines. You can easily convert the ports
for vertical connection by removing the four capscrews, rotating the flanges
as required, and reinstalling the capscrews. Connect the intake and
exhaust lines with a centering ring and a clamping ring each. Use the cen-
tering ring with dirt trap for the intake port.
Connect the intake and exhaust line using anti-vibration bellows, without
placing any strain on the pump.
The intake line must be clean. Deposits in the intake line may outgas and
adversely affect the vacuum. The connecting flanges must be clean and
undamaged.
The maximum throughput of the pump is equivalent to the pumping speed
of the pump.
The cross-section of the intake and exhaust lines should be at least the
same size as the connection ports of the pump. If the intake line is too nar-
row, it reduces the pumping speed. If the exhaust line is too narrow, over-
pressures may occur in the pump; this might damage the shaft seals and
cause oil leaks. The maximum pressure in the oil case must not exceed 1.5
bar (absolute).
When pumping vapours, it is advisable to install condensate traps on the
intake and exhaust sides.
Install the exhaust line with a
downward slope
(lower than the pump) so
as to prevent condensate from flowing back into the pump. If this is not
possible, insert a condensate trap.
When oil mist is to be removed from the exhaust flow we recommend the
use of the exhaust filter with lubricant return (ARS) which is part of the TRI-
VAC system.
When pumping aggressive media in particular in connection with PFPE as
the lubricant, we recommend the use of the chemical filter with safety sepa-
rating valve (CFS) which is part of the TRIVAC system. This will considera-
bly extend the service life of the lubricant.
The inlet pressure for the gas ballast should be about 1000 mbar (absolu-
te) and sufficient quantities of gas must be available (about
1
/
10
of the pum-
ping speed).
Warning
Remove and retain
the shipping seals
without strain
clean
Minimum cross-section
Prevent condensate
from flowing back
Maximum pressure
