Flowserve PA46 - Manual (Page 10)

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Fig. 1
Technical Data
 continued 
Capacity chart PA 46, PA 47, MPA 46, MPA 47
Calculation of the amount of boiler water to be discharged
according to the following formula:
A = Q · S
K – S
Conductivity of
feedwater:
S [µS/cm]
Admissible conductivity
of boiler water:
K [µS/cm]
Boiler capacity: Q [kg/h]
Amount of boiler water
to be discharged:
A [kg/h]
Example
Conductivity of
feedwater:
S = 0 µS/cm
Admissible conductivity
of boiler water:
K = 4000 µS/cm
Boiler capacity: Q = 000 kg/h
Amount of boiler water
to be discharged:
A ≈ 0 kg/h
How to read chart fig. 1
Boiler pressure:
5 bar
Nominal size of intermittent valve for removing boiler
sludge
DN 3
Capacity: .5 kg/s