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EXPANSION VESSEL
14.1.
CALIBRATION
Standard pressure value of expansion
tank when empty is 1.5 bar. Maximum
value is 6 bar.
Calibration of the vessel must be
regulated using the maximum level
difference (H) of the user (see diagram)
by using the following formula:
p (calibration) [bar] = H [m] / 10.2 +
0.3.
For example: if level difference (H) is
equal to 20m, the calibration value of
the vessel will be 2.3 bar.
If calibration value obtained from
formula is less than 1.5 bar (that is
for H < 12.25), keep calibration as
standard.
EXPANSION VESSEL CALIBRATION
14.
KEY
(1)
Check that highest installation is not higher than 55
metres.
(2) Ensure that lowest installation can withstand global
pressure in that position.
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