Pressure Balance High-Pressure
GB
CPB5000HP
WIKA Operating Instructions Pressure Balance High-Pressure Version 2.5
19
3.2.3 Pressure stable
.
Continue admitting pressure until the system is in a state of equilibrium.
The piston is in the float position. In this case the lower edge of the bell must stay at the position of
the marking line of the piston/cylinder system.
Just before the float position, the system increases quickly.
We therefore recommend turning the spindle slowly and evenly clockwise.
To minimise the effect of friction, move the system up against the weight pieces carefully and make
a turning movement.
Never move the system up and make a turning movement, if the piston is in the
upper block position.
For the lower position consider the following course of action which applies to
all pressure values:
1. Apply approximately 95 % of the test pressure
2. Bring the masses in rotation and increase simultaneously the pressure until
the float position is reached
The piston and thus the test pressure as well now remain stable for several minutes.
3.2.4 Next pressure level
.
To adjust to the next highest pressure, repeat the previous steps from 3.2.1 to 3.2.3
Marking line for
float position
Lower edge of the
bell
