Goulds Pumps 3311 - IOM - Manual (Page 11)

11
3.1.8 Cooling
Cooling is required if the temperature of the liquid
handled exceeds 110 °C, if a packed stuffing box is used,
or 140 °C if a mechanical seal is installed. For this
purpose the pump is equipped with a shaft sealing casing
which can be cooled. The connecting points for the
cooling lines are on the shaft sealing casing. The customer
should provide either an open circuit, i.e. a cooling water
return line to the drain system, or a closed circuit
including a return to the cooling circuit to be provided.
3.1.9 Drain line, leakage water line
The pump has connections for leakage water and drain
lines.
3.1.10 Pressure monitoring
In order to monitor the pressures upstream and
downstream from the pump, the installation of measuring
points in the pipeline is recommended.
3.2 Electrical connections
The electrical connection for the driving motor must be in
compliance with the relevant rules and requirements.