Pneumatic calculator/converter 2020-07-05 14:57:14

Program information ver. 1.1
Flow converter
Field for customer notes
Input:
Output:
Explanation:
Qn Normal flow (Nl/min).
Measured with upstream pressure 6 bar and the pressure drop 1 bar over the valve.
C The C-value (l/(s*bar)).
Flow sonic conductance
Ratio of volume flow Q and input pressure p1abs for choked flow C=Q/p1abs
b Critical pressure ratio
Ratio of output pressure p2abs and input pressure p1abs which marks the transition from choked flow (sonic velocity in narrowest section) to subsonic flow
kv The kv-value.
Measured with water at a pressure drop 1 bar over the valve.
Kv The Kv-value.
As above but expressed in m3/hr.
Cv The Cv-value (US gallons/min).
Measured with water at a pressure drop 1 psi (0.07 bar) over the valve.