The purpose of this Technical Information Paper (TIP) is to provide a reference basis from which paper machine
vacuum system airflow requirements may be calculated. Air flow sizing requirements for fourdriniers, press
sections, tissue formers and cylinder machines are presented.
Selection (vacuum factors) factors given in this TIP are only guidelines. Paper machine dewatering capability should
be evaluated besides calculating existing vacuum factors because there are many variables affecting sheet
dewatering besides vacuum capacity and resulting vacuum levels. Vacuum system suppliers, machine builders, or
application specialists should be consulted for accurate sizing and for specific applications. Dewatering performance
of formers and presses should be compared to industry standards (see TIP 0404-47 on paper machine performance)
before consideration of adding vacuum capacity to meet the "TAPPI Factors."
| File Size : | 1
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| Note : | This product is unavailable in Ukraine, Russia, Belarus |
| Number of Pages : | 19 |
| Published : | 2013 |
