▪
Remove the outlet nozzle and connect to the 3/4 inch BSP threaded hole.
▪
Remove the outlet nozzle and replace it with an NW25 flange adaptor (available as
an optional accessory, refer to
Pump outlet adaptor on page 47
) and then connect
to the NW25 flange.
4.10 Gas-ballast inlet connection
The position of the gas-ballast inlet is shown in
Figure: General view of the pump on
. The gas-ballast inlet has several filters (shown in
) to trap any dust and debris if air is used as the gas-ballast
supply.
If using a different gas for the gas-ballast supply or to connect a valve to the gas-ballast
inlet:
1.
Remove the filters (as described in
Clean the gas-ballast filter on page 36
).
2.
Connect the gas supply or valve to the 1/4 inch BSP threaded hole.
4.11 Leak-test the system
Leak
‑
test the system and seal any leaks found after you have installed the pump, to
prevent leakage of substances out of the system and leakage of air into the system.
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A37310880_V - Installation
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