1. Gearbox
2. Cooling-water outlet
3. Temperature measurement point
4. Thermal snap-switch box
5. Lifting-bolt
6. Pump-inlet
7. Cooling-water inlet
8. Fixing-holes
9. Frame
10.Gas-ballast flow valve
11.Exhaust-purge port (blanked)
12.Interstage relief valve
13.Pump-outlet
14.Oil-level sight-glass
15.Coupling cover
16.Pump-motor
17.Arrow showing motor rotation direction
18.Correct direction of rotation arrow
19.Motor cooling-fan
20.Oil drain-plug
21.Oil filler-plug
22.Shaft-seals purge inlet