Emerson 2468CB Manuel D’Utilisation

Installation Procedures 

Hydrastep Pressure Parts 

 

 

 

 

 

 

 

 

 

 

 

 

 
The Steam and Water connections on the water column must be set to position the water 
column at the correct level before they are welded in place, Figure 2.2 gives an example of 
the water column installation.  Normally, the water level of the drum will be between 
electrodes 6 and 7 for a twelve port water column.  However, due to the physical or operating 
conditions, this could be offset.  The steam leg must slope downwards to the water column 
with a minimum gradient of 1 in 50 to ensure condensate circulation.  The water leg must 
slope downwards to the drum to prevent water from being trapped at the bottom of the water 
column. 

Caution:  Care must be exercised to ensure that the pipework is not allowed to take the 

unsupported weight of a standard water column.  The weight of the column and 
its associated pipework are fully supported - there must not be any load on the 
welded pipework attachment points. 

Installation should commence with the support of the column, see Figure 2.3.  The water 
column is attached to the supports which will carry the weight of the water column and allow 
it to be accurately aligned with the drum steam and water connections before and during the 
welding operation. 

After the welding to the connecting pipework, valves and the fitting of the drain pipework is 
complete, a further check on the level alignment must be carried out and adjustments made, 
if necessary. 

45°

1.5mm

For HP (210 bar)

Material: SA106B
Size:

1" N.B, Sch. 160 pipe dim.

For HP (300 bar)

Material: SA479 - 316
Size:

1" N.B, Sch. XXS PPE

For LP

Material: SA106B
Size:

1" N.B, Sch. 80 pipe dim.