18 LRP200000228 Issue A
3.4.4 Once-through sealing liquid supply system
NOTE
Because of the potential environmental impacts, the use of once-through systems should be carefully
considered.
Refer to Figure 1, detail C. In once-through systems, the sealing liquid is supplied directly to the liquid ring
in the pump (8), through a suitable supply pipeline (11, 10, 6, 18, 5, 4, 3).
The used sealing liquid is discharged with the pumped gases and vapours through the outlet pipeline (14)
into your exhaust-extraction system.
3.5 Unpack and inspect
1. Remove all packing materials and protective covers and check the pump. If the pump is damaged,
notify your supplier and the carrier in writing within three days; state the Item Number of the pump
together with your order number and your supplier's invoice number. Retain all packing materials for
inspection. Do not use the pump if it is damaged.
2. Look at the pump identification plate (refer to the System Manual) and check that the pump is suitable
for use in your system. If the pump is not suitable for use in your system, do not continue to install the
pump: contact your Supplier or Atlas Copco.
If the pump is not to be used immediately, refit the protective covers. Store the pump in suitable conditions,
as described in Section 6.1.
3.6 Locate the pump
WARNING
Use suitable lifting equipment to move the pump, as described below. If you
do not, you can injure yourself or damage the pump. Refer to the pump
nameplate for the mass of the pump.
Ensure that the operating location is clean and free from debris and oil.
You must ensure that when the pump is in its required operating location, all of the mounting feet are in the
same plane, flat on the mounting platform. The platform must be firm and level, with a maximum flatness
deviation less than that specified in Table 2.
Do not use shims or spacers under the mounting feet to level the pump.
1. The pump can be shift by the iron chain or the sling for hoisting transport.
2. Use the lifting equipment to move the pump to its required operating location on the mounting platform,
then disconnect the lifting equipment.
3. Fit suitable bolts through the fixing bolt holes in the mounting feet, to secure the pump in position. Refer
to the System Manual for the locations and sizes of the fixing holes.
3.7 Fit the motor or drive/transmission
3.7.1 Introduction
The pump is supplied as a bareshaft pump. You must therefore fit a suitable motor (refer to Section 3.7.2),
and fit a suitable drive and transmission (refer to Section 3.7.3).
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