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<p><big><font FACE="Arial">Saturated and wet steam</font></big></p>

<p><u><font FACE="Arial">Calculation conditions:</font></u></p>

<p><font FACE="Arial"><small>Medium at inlet must be satuarted steam, wet steam or water
in state of liquid near or exactly on the limit of saturation. Turbulent flowing.
Isoentalpic throttling.<br>
Calculation of valve´s Kvs value or step of reduction in area of wet steam is executed
with the aid of following input data:<br>
&nbsp;&nbsp;&nbsp; Inlet pressure p1<br>
&nbsp;&nbsp;&nbsp; Outlet pressure p2<br>
&nbsp;&nbsp;&nbsp; Flow Q <br>
&nbsp;&nbsp;&nbsp; Medium temperature t<br>
&nbsp;&nbsp;&nbsp; Dryness of steam-water mixture x (0;1) at inlet<br>
Program calculates an optimal Kvs value according to calculated Kv value. But user may
change the final Kvs value.<br>
Further, an optimal inner DN value of piping must be selected. This DN value must be
selected with respect to the speed of medium flowing inside piping. This speed for
actually selected DN is showen on the screen.<br>
When calculating several steps of reduction, it is necessary to use outlet data as of
temperature, pressure and dryness for input data of following step of multi-step pressure
reduction.</small></font></p>
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