Step Action
5 Close the column outlet valve.
Pressure relief valve
6 Raise the pressure to maximum working pressure. Note that pressure spikes
m
ay cause poor packing (cracking).
A pressure relief valve should be placed between the pump and column.
WARNING
T
he working pressure of the column should never
exceed its design pressure, otherwise there is a risk of
personal injury and damage to the column. Always use
appropriate safety equipment, for example pressure
relief valve or rupture discs.
7 Wait about 15 minutes until the pressure has stabilized.
8 Check the pressure drop on the pressure gauge. The pressure drop should
n
ot exceed 0.1 bar during 5 minutes. A recorder linked to a pressure
controller gives more precise figures.
6 Maintenance
6
.6 Leakage test
114
BPG Columns Operating Instructions 29193223 AB
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