
Figure 1 General view of the pump
1. Oil filler
2. Outlet nozzle
3. Gas-ballast control
4. Gas-ballast inlet
5. Centring-ring and O-ring (supplied)
6. Inlet-port (adaptor flange)
7. Cable-gland/Amphenol connector
position
8. Motor terminal box
9. On/Off switch
10. Box section skids
11. Oil drain-plug (gravity drain)
12. Oil sight-glass
13. Pump identification label
14. Oil drip tray
1. Oil filler
2. Outlet nozzle
3. Gas-ballast control
4. Gas-ballast inlet
5. Centring-ring and O-ring (supplied)
6. Inlet-port (adaptor flange)
7. Cable-gland/Amphenol connector
position
8. Motor terminal box
9. On/Off switch
10. Box section skids
11. Oil drain-plug (gravity drain)
12. Oil sight-glass
13. Pump identification label
14. Oil drip tray
Note:
A pump with a single-phase motor is shown in this figure. The motor shown in this figure
is not representative of the motor used on the E2M28 (Amphenol) pump with item
number A37317984. On this pump, cable-gland/amphenol connector position and on/off
switch are transposed, with cable-gland/amphenol connector position being an
IEC60320 16-20 Amp socket.
2.4 Gas-ballast
To pump high vapour loads, gas-ballast is delivered into the pump to prevent
condensation of the vapour carried by the pumped gases.
Air (or another gas) can be introduced into the low vacuum stage through the gas-ballast
control. The gas-ballast control is a multi-turn valve which can be adjusted, as required,
between closed and fully open.
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A37310880_V - Introduction
Содержание A37315903
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