Rotary Plug Valves - Revision history

https://www.solidswiki.com/index.php?action=history&feed=atom&title=Rotary_Plug_Valves Rotary Plug Valves - Revision history 2026-10-21T02:37:09Z Revision history for this page on the wiki MediaWiki 1.37.1 https://www.solidswiki.com/index.php?title=Rotary_Plug_Valves&diff=14317&oldid=prev Kodiyath at 16:03, 13 January 2013 2013-01-13T16:03:00Z

<p></p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 10:03, 13 January 2013</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l1">Line 1:</td> <td colspan="2" class="diff-lineno">Line 1:</td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[Category:Valves]]{{Knoppen}}</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[Category:Valves]]{{Knoppen}}</div></td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">[[File:Rotary plug valves.jpg|thumb|right|Rotary Plug Valves]]</ins></div></td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">'''Rotary Plug Valve''' is an outstanding combination of [[Dome Valves]], [[Butterfly Valves]], and the classic control valve and unifies all their advantages such as free passage, no dead space, high gland nut insularity, control over high pressure difference, compact design and very good control properties. Rotary plug valves have a variety of critical applications that can only be covered by conventional control valves with difficulty.</ins></div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr> <tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;">'''Rotary Plug Valve''' </del>is <del style="font-weight: bold; text-decoration: none;">an outstanding combination of [[Dome Valves]], [[Butterfly Valves]]</del>, and the <del style="font-weight: bold; text-decoration: none;">classic control </del>valve and <del style="font-weight: bold; text-decoration: none;">unifies all their advantages such as free passage, no dead space, high gland nut insularity, </del>control <del style="font-weight: bold; text-decoration: none;">over </del>high <del style="font-weight: bold; text-decoration: none;">pressure difference</del>, <del style="font-weight: bold; text-decoration: none;">compact design </del>and <del style="font-weight: bold; text-decoration: none;">very good control properties</del>. Rotary plug valves <del style="font-weight: bold; text-decoration: none;">have </del>a <del style="font-weight: bold; text-decoration: none;">variety </del>of <del style="font-weight: bold; text-decoration: none;">critical applications </del>that can <del style="font-weight: bold; text-decoration: none;">only </del>be <del style="font-weight: bold; text-decoration: none;">covered by conventional control </del>valves with <del style="font-weight: bold; text-decoration: none;">difficulty</del>.</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">One of the main advantages of the rotary plug valve </ins>is <ins style="font-weight: bold; text-decoration: none;">its free passage. Due to the flow restrictor which moves crossways to the flow</ins>, <ins style="font-weight: bold; text-decoration: none;">the media current does not have to be diverted through the housing wall. This confers a special advantage on abrasive or adhesive media.</ins></div></td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">The axle’s bearing in connection with the plug and the housing is arranged double eccentric and causes the plug to lift up immediately </ins>and <ins style="font-weight: bold; text-decoration: none;">smoothly from </ins>the <ins style="font-weight: bold; text-decoration: none;">seat when rotating the plug shaft. The </ins>valve <ins style="font-weight: bold; text-decoration: none;">does not fire open </ins>and <ins style="font-weight: bold; text-decoration: none;">therefore displays stable </ins>control <ins style="font-weight: bold; text-decoration: none;">action even for small opening angles.Rotary plug valves are characterised by </ins>high <ins style="font-weight: bold; text-decoration: none;">Kvs values that are up to 200% larger than is the case for hub valves of a similar nominal size. By opting for a rotary plug valve</ins>, <ins style="font-weight: bold; text-decoration: none;">you can use smaller valve nominal sizes </ins>and <ins style="font-weight: bold; text-decoration: none;">thereby avail of cheaper solutions</ins>.</div></td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>Rotary plug valves <ins style="font-weight: bold; text-decoration: none;">display firm geometry of the flow restrictor, whereby the valve’s natural curve is set. Conversion to an ideally linear or ideally equal percentage curve is conducted via a position regulator, either with suitable cam disks or via </ins>a <ins style="font-weight: bold; text-decoration: none;">software curve in the case </ins>of <ins style="font-weight: bold; text-decoration: none;">modern regulators. The incoming signal is transformed accordingly via the so-called signal curve so </ins>that <ins style="font-weight: bold; text-decoration: none;">this produces the desired total curve by superimposing with the natural curve.</ins></div></td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">The high range ability of the rotary plug valve must be mentioned in connection wtih the flow curve.The range ability defines the ratio of the nominal-Kvs-value to the smallest controllable flow value where the curve is still within the permitted tolerances. Rotary plug valves attain typical values of 1:200 in comparison with hub valves with range abilities of 1:30 to 1:50. The rotary plug’s valves are pre-determined by the design, because the plug does not dip into the seat through the double eccenter, but releases a traceable transverse section for the smallest opening angle. Therefore, in the case of a rotary plug valve, it </ins>can be <ins style="font-weight: bold; text-decoration: none;">adjusted to zero.</ins></div></td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div> </div></td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">In contrast with the hub valves, rotary plug </ins>valves <ins style="font-weight: bold; text-decoration: none;">produce a torque through the actuator’s linear transmission via a lever which favours the use of smaller [[Actuators]] </ins>with <ins style="font-weight: bold; text-decoration: none;">shorter manipulation. This can be seen, most notably, in the case of large nominal sizes. Compared to hub valves, rotary plug valves have a more compact design</ins>.</div></td></tr> </table>

Kodiyath https://www.solidswiki.com/index.php?title=Rotary_Plug_Valves&diff=14315&oldid=prev Kodiyath at 15:30, 13 January 2013 2013-01-13T15:30:41Z

<p></p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 09:30, 13 January 2013</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l1">Line 1:</td> <td colspan="2" class="diff-lineno">Line 1:</td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[Category:Valves]]{{Knoppen}}</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[Category:Valves]]{{Knoppen}}</div></td></tr> <tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;"><noinclude></noinclude></del></div></td><td colspan="2" class="diff-side-added"></td></tr> <tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;">This page is still empty. If you know something about this product, please share your knowledge </del>with <del style="font-weight: bold; text-decoration: none;">others</del>.</div></td><td colspan="2" class="diff-side-added"></td></tr> </table>

Kodiyath https://www.solidswiki.com/index.php?title=Rotary_Plug_Valves&diff=7528&oldid=prev Admin: Created page with "Category:Valves{{Knoppen}} <noinclude><!------------------------------------------------ * READ THIS FIRST * Only edit this page if you can improve the content. * Improper u..." 2012-06-27T06:15:41Z

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