LRP200000228 Issue A 23
4 Operation
NOTE
The procedures in the following sections assume that your sealing liquid supply system is as shown in
Figure 1, detail A, B or C.
4.1 General operation safety
WARNING
Obey the safety instructions and precautions listed below. If you do not,
there may be a risk of injury or death to people, or damage to the pump.
• Do not expose any part of your body to vacuum.
• Do not operate the pump with the process inlet or outlet open to the atmosphere.
• Do not operate the pump without sealing liquid in the pump.
• During operation, prevent accidental contact with the hot pump. Note that if you use hot sealing liquid
(up to 80 °C), the temperatures of the pump process outlet and seal surfaces will be higher than the
temperature of the sealing liquid supply.
• Do not continue to operate the pump under cavitation conditions. If you do, the pump can be severely
damaged (see Section 4.3).
• Never disconnect any of the connecting pipelines (for example, the sealing liquid supply pipeline) when
the pump is operating.
• Where necessary, wear ear defenders. The pump can be noisy during operation (refer to Section 2).
4.2 Start-up
WARNING
Do not start the pump full of water as this could damage the pump.
WARNING
If a guard is removed during the following procedure, ensure not to come
into contact with the shaft, the coupling/belt or the drive system when
operating the pump. If so, injury can result from the rotating components.
CAUTION
Do not operate the pump without sealing liquid in the pump. If you do, there may be a risk of
damage to the pump.
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