© Edwards Limited 2009. All rights reserved. Page 23
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INSTALLATION
A705-74-880 Issue K
1. Refer to Figure 7. Remove the red blanking caps from the cooling-water outlet port (3) and the cooling-water
inlet (as shown in Figure 1). Fill pump case with cooling-water and fit the outlet connection into the outlet port
(3) using sealant (Loctite 577 or equivalent).
2. Fit the end of your cooling-water supply pipeline to the Temperature Control Valve (TCV) with a suitable ½" BSP
adaptor using sealant (Loctite 577 or equivalent).
3. Fit the end of your cooling-water return pipeline to the outlet connection using a suitable ½" BSP adaptor using
sealant (Loctite 577 or equivalent).
4. Cooling-water supply lines should be rated to 7 bar working pressure and to 338°F (170°C).
Figure 7 - Cooling Schematic
3.10 Connect the shaft-seals purge and gas-ballast gas supplies
3.10.1 Introduction
Select the correct shaft-seals purge and gas-ballast requirements for your application. It is recommended that
nitrogen supply be connected to the gas systems if toxic, corrosive or flammable materials are to be pumped.
If a compressed air supply is required to the shaft-seal purge inlet, use the procedure in Section 3.10.2. The gas-
ballast system can deliver filtered atmospheric air to the pump gas-ballast inlet, therefore it may not be necessary
to connect an air supply to the gas-ballast system.
If required to connect nitrogen supplies to the shaft-seals inlet and to the gas-ballast system. Use the procedures in
Section 3.10.2 and Section 3.10.3.
1. TCV/Coolant inlet connection 2. Coolant outlet connection
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