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		<id>https://www.designingbuildings.co.uk/w/index.php?action=history&amp;feed=atom&amp;title=Double_regulating_valve</id>
		<title>Double regulating valve - Revision history</title>
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		<updated>2026-04-17T04:51:54Z</updated>
		<subtitle>Revision history for this page on the wiki</subtitle>
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	<entry>
		<id>https://www.designingbuildings.co.uk/w/index.php?title=Double_regulating_valve&amp;diff=281164&amp;oldid=prev</id>
		<title>Editor at 04:21, 19 July 2024</title>
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				<updated>2024-07-19T04:21:12Z</updated>
		
		<summary type="html">&lt;p&gt;&lt;/p&gt;
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		&lt;td colspan='2' style=&quot;background-color: white; color:black;&quot;&gt;← Older revision&lt;/td&gt;
		&lt;td colspan='2' style=&quot;background-color: white; color:black;&quot;&gt;Revision as of 04:21, 19 July 2024&lt;/td&gt;
		&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 1:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 1:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;[https://www.bsria.com/uk/product/NrM42B/hydronic_systems_design_set_of_2_guides_hsd2_a15d25e1/ Energy Efficient Pumping Systems, a design guide (BG 12/2011)], written by Chris Parsloe and published by BSRIA in 2011, suggests that a double regulating valve (DRV): ‘…enables manual regulation of flow rate. Once regulated, the valve can be locked in its set position and subsequently used for isolation. On re-opening, the valve will only open as far as its locked position.’&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;[https://www.bsria.com/uk/product/NrM42B/hydronic_systems_design_set_of_2_guides_hsd2_a15d25e1/ Energy Efficient Pumping Systems, a design guide (BG 12/2011)], written by Chris Parsloe and published by BSRIA in 2011, suggests that a double regulating valve (DRV): ‘…enables manual regulation of flow rate. Once regulated, the valve can be locked in its set position and subsequently used for isolation. On re-opening, the valve will only open as far as its locked position.’&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;color: red; font-weight: bold; text-decoration: none;&quot;&gt;&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;color: red; font-weight: bold; text-decoration: none;&quot;&gt;The BSRIA guide to 'Commissioning Air Systems' ([https://www.bsria.com/uk/product/rqJzen/commissioning_air_systems_bg_492024_a15d25e1/ BG 49/2024]), written by by Keith Barker and published by BSRIA in March 2024, explains how to commission ducted air distribution systems in buildings. It was originally published in 2013, then 2015 with the latest update in 2024.In the guide [https://www.designingbuildings.co.uk/wiki/IT it] defines 'regulating' as: 'The process of adjusting the fluid flow rates in a distribution system to achieve the design flow rates within the tolerances specified by the designer'&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;--[[User:BSRIA|BSRIA]]&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;--[[User:BSRIA|BSRIA]]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
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		<author><name>Editor</name></author>	</entry>

	<entry>
		<id>https://www.designingbuildings.co.uk/w/index.php?title=Double_regulating_valve&amp;diff=236411&amp;oldid=prev</id>
		<title>Designing Buildings: Created page with &quot;[https://www.bsria.com/uk/product/NrM42B/hydronic_systems_design_set_of_2_guides_hsd2_a15d25e1/ Energy Efficient Pumping Systems, a design guide (BG 12/2011)], written by Chris P...&quot;</title>
		<link rel="alternate" type="text/html" href="https://www.designingbuildings.co.uk/w/index.php?title=Double_regulating_valve&amp;diff=236411&amp;oldid=prev"/>
				<updated>2022-08-08T08:02:46Z</updated>
		
		<summary type="html">&lt;p&gt;Created page with &amp;quot;[https://www.bsria.com/uk/product/NrM42B/hydronic_systems_design_set_of_2_guides_hsd2_a15d25e1/ Energy Efficient Pumping Systems, a design guide (BG 12/2011)], written by Chris P...&amp;quot;&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;[https://www.bsria.com/uk/product/NrM42B/hydronic_systems_design_set_of_2_guides_hsd2_a15d25e1/ Energy Efficient Pumping Systems, a design guide (BG 12/2011)], written by Chris Parsloe and published by BSRIA in 2011, suggests that a double regulating valve (DRV): ‘…enables manual regulation of flow rate. Once regulated, the valve can be locked in its set position and subsequently used for isolation. On re-opening, the valve will only open as far as its locked position.’&lt;br /&gt;
&lt;br /&gt;
--[[User:BSRIA|BSRIA]]&lt;br /&gt;
&lt;br /&gt;
= Related articles on Designing Buildings =&lt;br /&gt;
&lt;br /&gt;
* BSRIA articles.&lt;br /&gt;
* BSRIA definitions.&lt;br /&gt;
* Building services.&lt;br /&gt;
* Pipework.&lt;br /&gt;
* Tap.&lt;br /&gt;
* Types of valve.&lt;br /&gt;
* Valve.&lt;br /&gt;
&lt;br /&gt;
[[Category:DCN_Definition]] [[Category:DCN_Product_Knowledge]] [[Category:Definitions]] [[Category:Products_/_components]]&lt;/div&gt;</summary>
		<author><name>Designing Buildings</name></author>	</entry>

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