With the aim of a continuous product improvement, Officine Mario Dorin S.p.A. informs its business partners of the following changes that will be introduced in the CD400 Range.
<img class="alignnone size-full wp-image-9113" src="https://refindustry.com/wp-content/uploads/2017/12/Dorin_compressor1.png" alt="" width="388" height="331" />
Through the use of the most modern fluid-dynamic calculation tools, it was possible to implement an innovative gas stream inside the crankcase, as well as new bore and stroke ratios, which assure:
- Extreme decrease in oil carry over
- Excellent pressure pulses decrease in the discharge pipes
- Astonishing optimization at variable frequency operation
These modifications apply to larger 4-cylinder models, 24.3 m<sup>3</sup>/h and above, while CD3000H and smaller displacement models remain unchanged.
It is also introduced a change of nomenclature for the involved models as well as a negligible displacement variation, as shown in the below table.
<table style="width: 780px;">
<thead>
<tr>
<td style="width: 388px;" colspan="4">Actual Range</td>
<td style="width: 386px;" colspan="4">New Range</td>
</tr>
</thead>
<tbody>
<tr>
<td style="width: 152px;">Model</td>
<td style="width: 53px;">Bore</td>
<td style="width: 76px;">stroke</td>
<td style="width: 107px;">Displacement</td>
<td style="width: 149px;">Model</td>
<td style="width: 53px;">Bore</td>
<td style="width: 74.2px;">stroke</td>
<td style="width: 109.8px;">Displacement</td>
</tr>
<tr>
<td style="width: 152px;"></td>
<td style="width: 53px;">mm</td>
<td style="width: 76px;">mm</td>
<td style="width: 107px;">m<sup>3</sup>/h</td>
<td style="width: 149px;"></td>
<td style="width: 53px;">mm</td>
<td style="width: 74.2px;">mm</td>
<td style="width: 109.8px;">m<sup>3</sup>/h</td>
</tr>
<tr>
<td style="width: 152px;">CD3000M CD3400H</td>
<td style="width: 53px;">42</td>
<td style="width: 76px;">42</td>
<td style="width: 107px;">20,25</td>
<td style="width: 149px;">CD3001M CD3401H</td>
<td style="width: 53px;">48</td>
<td style="width: 74.2px;">32</td>
<td style="width: 109.8px;">20,15</td>
</tr>
<tr>
<td style="width: 152px;">CD2500B
CD3500H</td>
<td style="width: 53px;">45</td>
<td style="width: 76px;">42</td>
<td style="width: 107px;">23,25</td>
<td style="width: 149px;">CD2501B CD</td>
<td style="width: 53px;">48</td>
<td style="width: 74.2px;">37</td>
<td style="width: 109.8px;">23,3</td>
</tr>
<tr>
<td style="width: 152px;">CD3500M
CD4000H</td>
<td style="width: 53px;">45</td>
<td style="width: 76px;">48</td>
<td style="width: 107px;">26,6</td>
<td style="width: 149px;">CD3501M
CD4001H</td>
<td style="width: 53px;">48</td>
<td style="width: 74.2px;">42</td>
<td style="width: 109.8px;">26,45</td>
</tr>
<tr>
<td style="width: 152px;">CD3500B CD5000M</td>
<td style="width: 53px;">48</td>
<td style="width: 76px;">48</td>
<td style="width: 107px;">30,2</td>
<td style="width: 149px;">CD3501B CD5001M</td>
<td style="width: 53px;">52</td>
<td style="width: 74.2px;">42</td>
<td style="width: 109.8px;">31,0</td>
</tr>
<tr>
<td style="width: 152px;">CD3600B
CD5200M</td>
<td style="width: 53px;">52</td>
<td style="width: 76px;">48</td>
<td style="width: 107px;">35,5</td>
<td style="width: 149px;">CD3600B
CD5201M</td>
<td style="width: 53px;">52</td>
<td style="width: 74.2px;">48</td>
<td style="width: 109.8px;">35,5</td>
</tr>
</tbody>
</table>
The production of new models will begin in March 2018 and could temporarily parallel that of previous models.
