7. Installing the components
This section describes how to add various peripheral
devices (control head, castor base) to the storage
tank.
7.1 Control head
Proceed as follows:
The control head can be installed in the full
tank. This installation phase must be
conducted with caution (trained operator,
equipped with all required cryogenic
personal protection equipment: gloves,
apron, visor, etc.) in order to avoid any
liquid nitrogen splashing.
1. Before starting, blow dry air or nitrogen through the
lines and the valves to remove any moisture.
This is an essential precaution to avoid the
risks of ice forming in the lines and the
safety accessories and blocking them or
preventing them from working.
2. Open the vent valve (2).
Close the filling/withdrawal valve (1).
Close the pressure-building valve (3).
You must ensure that these two valves
are closed before doing anything else.
3. Fit the metal seal (5) over the flange of the tank.
The length of the control head means that you
must be aware of equipment above you when
installing it (see below).
4. Introduce the bottom of the control head (4) into
the tank, taking care not to knock the neck of the
inner vessel.
5. Position the clamping ring (6) and secure the
assembly.
4
5
6
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