Talk:Valve

Normally-open valves
In the section Valve it is stated that "examples of normally-closed (NC) valves are sampling valves"; this is correct. However, "Examples of normally open (NO) valves are isolation valves", this is not correct, imho. I engineering, typically isolation valves will be NC because in case of a problem (e.g. no power supply) they should close automatically. Even if they are open during normal operation, they are officially NC valves. I will change that if there are no objections. Dvh369 (talk) 09:14, 21 September 2011 (UTC)

Type of Valves
I would like to list the most commom types of valves and Wiki links for them. sincerely, Fernando Fraga. —Preceding unsigned comment added by 189.12.61.227 (talk) 11:33, 3 November 2007 (UTC)

Edits
I unlinked switch because 1) valves are not usually understood as switches and 2) the switch article is only about electrical switches. I unlinked "flow" partly because there is no longer an article about flow, and partly because, as I think it would be impossible to make a reasonable article called "flow", I don't want to encourage the creation of a new one. --Ryguasu 00:39 Dec 3, 2002 (UTC)

I changed the name for freeze valves to freeze seals. My source is the Nuclear Regulatory Commission. http://www.nrc.gov/reading-rm/doc-collections/insp-manual/technical-guidance/tgfplugs.pdf —Preceding unsigned comment added by Gordongoude (talk • contribs) 20:29, 2 February 2010 (UTC)

Ball Bearing
What's name for a simple one-way valve composed of a spring pushing a BB in the upstream direction against a seel so that downstream flow opens the valve but upstream flow isn't possible? —Ben FrantzDale 03:44, 7 April 2006 (UTC)


 * Spring-loaded ball check valve.  H Padleckas 01:42, 12 August 2006 (UTC)

Valves of veins
Solenoid_valve

Valves of veins need to be mentioned here. AxelBoldt 05:59, 28 October 2006 (UTC)

www.wenzhou-valves.com —Preceding unsigned comment added by 218.73.224.1 (talk) 01:14, 5 July 2008 (UTC)

Valve-Software
Maybe there should be a link to VALVe (Valve-Software) ? because it's more know under the name valve then valve-software ^^ sincerely, NiHiliM 17:18, 8 January 2007 User:81.240.11.209

No mention of electrical valves
No mention is made about the electrical valves that was partly replaced by transistors. The defenition must thus also be elaborated to include the regulation of electrical current 155.239.114.152 19:03, 24 August 2007 (UTC) — — Preceding unsigned comment added by 210.186.52.65 (talk) 07:23, 19 February 2015 (UTC)
 * The disambiguation page for Valve, pointed to on the top of the page, shows the way to Thermionic valve. --jpgordon&#8711;&#8710;&#8711;&#8710; 18:23, 25 August 2007 (UTC)

No mention of piezoelectric pneumatic valve
A piezoelectric solenoid valve has low response times (~100s of micro seconds), a unlimited service life (more than 1 billion cycles), and extremely low power consumption (~0.01 W). May be should be added to the Solenoid_valve article. Larytet

A great article
TO the author: as a writer and editor with little or no knowledge of valves, I have this to say: your article is a freaking MASTERPIECE! Detailed. Well-written. Informative. Great job, and THANKS! 69.118.234.2 14:33, 24 October 2007 (UTC) (<???...tildes? Whatever...you wikis are WEIRD...)

Now I understand the tildes!
See previous post! ;-) —Preceding unsigned comment added by 69.118.234.2 (talk) 14:34, 24 October 2007 (UTC)

Engineering Drawing Request
It would be extremely helpful to include more images especially engineering cutaway type diagrams (the kind you might find in a valve manufacturer's catalog) of standard valve types ( ball, gate, check, butterfly, globe, plug, needle, guage) pointing out applicable features, ( flange, raised face flange, stem, disc, wafer, bonnet, spring, ball, port, trunion mount, threaded connection, handwheel etc.). Excellent (but proprietary) examples are contained here: http://www.henrypratt.com/products/drawings/RD%20Series%20Check%20PG%202.pdf https://www.ancorp.com/LinePhoto/B1075-QF16-IL.jpg http://www.asahi-america.com/documents/documents/Asahi-English/Manual%20Globe%20Valves.pdf 12.163.168.130 20:02, 31 October 2007 (UTC)


 * Following up, it would also be great if we could have some pictures of the actual (physical) cutaway if anyone feels like talking to a valve manufacturer (Offshore Technology Conference or another industry gathering might be another good place to get the photos)12.163.168.130 20:08, 31 October 2007 (UTC)

2-port valve isn't always 2-way
In the article, it is stated that 2-port valves are always 2-way. This is untrue and very confusing for the article

I suggest changing the articles from 2,3,4-way valve to 2,3,4-port valve. The line mentioned needs to be deleted.

Finally, 1 port valve needs to be added and the article made. It should be mentioned in the valve operating positions section that Return valve and Non-return_valves exist. —Preceding unsigned comment added by 91.176.13.194 (talk) 12:09, 4 June 2009 (UTC)

What in the world is a one-port valve? Ports are the openings in the valve. So if it only has one port, isn't it a cap? Can somebody with a copy of the ISA Valve Handbook please contribute to this article? Also, there seems to be confusion about whether or not "#-way" and "#-port" are equal. They are not. For instance, I frequently use five-port, four-way, two-position valves for pneumatic controls. Here's a good illustration. -207.70.169.36 (talk) 16:17, 3 August 2009 (UTC)

Yes, a one-port valve would be a cap. —Preceding unsigned comment added by 76.167.223.60 (talk) 19:58, 2 February 2010 (UTC)

VALVES

 * PLEASE LET ME KNOW WHAT IS THIS RTJ TYPE VALVES. 07:30, 12 November 2009 User:86.96.228.84

blowing and blow-off phases
Evidently valves have different phases, including a blowing phase and blow-off phase. Information on that would be helpful. Wakablogger2 (talk) 20:54, 21 February 2010 (UTC)

Full bore, lifting
Evidently there are types of valves such as "full bore" and "lifting." Information on that would be useful. Wakablogger2 (talk) 21:29, 21 February 2010 (UTC)

What is a duplex valve?
Can someone offer a definition of "duplex valve"? --Doradus (talk) 21:18, 16 November 2010 (UTC)
 * Helloooo? --Doradus (talk) 16:12, 30 December 2010 (UTC)

Duplex seems to be a reference to duplex stainless steel as the housing material. 193.45.212.118 (talk) 08:59, 1 February 2011 (UTC)

Engine template
Why does this article contain the template for "Reciprocating engines and configurations" at the bottom? Valves are in no way bound to engines and I suggest it be removed. Is there a template for valves? Otherwise I would suggest one be made. 193.45.212.118 (talk) 08:03, 1 February 2011 (UTC)

Industrial Valves
Could someone provide a definition for "industrial valves" please?

I find the term confusing as it is sometimes used to define valves used in the industry (chemical, power, oil & gas). Other times it is all encompassing. Thus when it comes down to water it is not clear whether the term covers water & waster as well or solely industrial water. —Preceding unsigned comment added by 83.228.42.158 (talk) 09:18, 5 April 2011 (UTC)

From my experience all valves with a size smaller than 1 1/2" are "household". So for industrial valves you can expect that they are simply bigger than 5/4 inch or DN32 (process connection size / pipe size). — Preceding unsigned comment added by 109.73.150.212 (talk) 07:17, 9 April 2018 (UTC)

Unsystematic classification
I think the classification done over here is somewhat confusing as is wrt there way of operation by solenoid/hand/fluids etc; it would be more systematic and easy to understand different types of valves if these are classified wrt principle of operation viz. linear or rotary etc. Please have a look at this link; if you like the idea you may improve the article accordingly. JP MEE NA (talk) 04:37, 5 November 2012 (UTC)

History of Development
After hearing the valve was first developed in AD 75 on the History Channel's 101 Inventions I thought it would be worthwhile talking about the development of valves since they first appeared.--Graham Proud (talk) 00:12, 26 November 2013 (UTC)
 * The Greeks and Romans had plug cocks (1/4 turn, still used today) long before that. Andy Dingley (talk) 01:35, 26 November 2013 (UTC)
 * Gate valves are nearly as old as irrigation, and all those water-, steam-, and air-powered gadgets from the Helenic period used a variety of valves, including check valves, needle valves, etc. I agree that a history section on one of the most important areas of technological development is very necessary!Ernest Ruger (talk) 16:57, 14 September 2014 (UTC)

Regulating valves
The paragraph two-port valves says this "Some valves are specially designed to regulate varying amounts of flow. Such valves have been called by various names such as regulating, throttling, metering, or needle valves." I think the name is proportional valve. Besides, it should probably not be in this paragraph. — Preceding unsigned comment added by 86.91.158.142 (talk) 13:53, 15 August 2014 (UTC)

Semi-protected edit request on 13 August 2015
You didn't add the obvious relief valve, nash float valve to remove gas from the system, throw valve for rapid open and shut valve, test pressure station valve, simple drain valve, bypass valve, bleed valve for slowly releasing gas into the atmosphere, vee valve or metering valve for small minute operation also known as a regulation valve, potential valve used to electrically regulate flow.

198.182.163.102 (talk) 16:49, 13 August 2015 (UTC)

More importantly, you have not cited reliable sources to back up your request, without which no information should be added to, or changed in, any article. - Arjayay (talk) 17:30, 13 August 2015 (UTC)
 * Red information icon with gradient background.svg Not done: as you have not requested a specific change in the form "Please replace XXX with YYY" or "Please add ZZZ between PPP and QQQ".

Valves in biology
An articles on valves that mentions their existence in biology but has nothing further to say about that aspect is not an article about valves, it's an article about valves in human engineering. For example, is it foolish to think that an article on valves might explain the free valve and attached valve of a rudist? 92.29.12.4 (talk) 20:36, 12 November 2015 (UTC)

Semi-protected edit request on 29 August 2018
Add citation to the following centence "Valve bodies are usually metallic or plastic. Brass, bronze, gunmetal, cast iron, steel, alloy steels and stainless steels are very common." - https://www.actuation.co.uk/valve-body-types

Richjones2424 (talk) 09:37, 29 August 2018 (UTC)
 * Yes check.svg Done L293D (☎ • ✎) 13:11, 29 August 2018 (UTC)

The relationship between valves and logic gates
Hello everyone, I truly wish that this wiki page could add the content mentioned above, because this information is very important in the field of engineering, so I would like to use this wiki discussion page to present my own opinion, hoping to receive some advice from seniors as a junior. Dominic3203 (talk) 16:01, 28 January 2019 (UTC)

Semi-protected edit request on 27 March 2019
Valve is A mechanism that controls the flow of fluid in a pipe or tube. Many human-built systems also use valves. A car engine is called an internal combustion engine because it burns (combusts) fuel in chambers inside the engine. Internal combustion engine: A device that provides power by burning fuel within its cylinders. https://mixer.com/SniffiestMite21 76.71.9.136 (talk) 10:39, 27 March 2019 (UTC)
 * Red information icon with gradient background.svg Not done:
 * Not a well-written or relevant change.Andy Dingley (talk) 13:19, 27 March 2019 (UTC)

India Education Program course assignment
This article was the subject of an educational assignment supported by Wikipedia Ambassadors through the India Education Program.

The above message was substituted from by PrimeBOT (talk) on 19:54, 1 February 2023 (UTC)

Requested move 20 September 2023

 * The following is a closed discussion of a requested move. Please do not modify it. Subsequent comments should be made in a new section on the talk page. Editors desiring to contest the closing decision should consider a move review after discussing it on the closer's talk page. No further edits should be made to this discussion.

The result of the move request was: Clearly, WP:SNOW applies. Drmies (talk) 16:13, 20 September 2023 (UTC) Drmies (talk) 16:13, 20 September 2023 (UTC)

Valve → Valve (device) – Not the device but Valve Corporation is the primary topic. Therefore, per WP:PRIMARYTOPIC and WP:D, this article should have a disambiguated name. 2001:1C06:19CA:D600:9749:A195:AD35:C8D7 (talk) 06:05, 20 September 2023 (UTC)
 * Comment By the way, thousands of sources for Valve Corporation being known simply as "Valve" here, including for example this, this, this, etc. And here you can see the flow from Valve to Valve (disambiguation) to Valve Corporation. --2001:1C06:19CA:D600:9749:A195:AD35:C8D7 (talk) 06:29, 20 September 2023 (UTC)
 * Oppose. According to Disambiguation, one of "[s]ome general principles for determining a primary topic" is that "[a] topic may have principal relevance for a specific group of people (for example, as the name of a local place, or software), but not be the primary meaning among a general audience". Valve Corporation "may have principal relevance for a specific group of people ... but not be the primary meaning among a general audience". I think the primary meaning of the word "Valve" among a general audience is a device. --saebou (talk) 06:54, 20 September 2023 (UTC)
 * I get what you mean, but I read "general audience" as the general audience of Wikipedia. If you ask people on the street, sure, they'll think of the device. But here at Wikipedia, almost everyone is looking for the company. Not the device. But we'll see if others agree with me or not. --2001:1C06:19CA:D600:9749:A195:AD35:C8D7 (talk) 07:02, 20 September 2023 (UTC)


 * Oppose, per WP:PRIMARYTOPIC. The device clearly has greater long term significance than the company, i.e. "it has substantially greater enduring notability and educational value than any other topic associated with that term". SailingInABathTub 🛁 12:16, 20 September 2023 (UTC)
 * Oppose no way this satisfied either WP:PRIMARYTOPIC criteria—blindlynx 14:08, 20 September 2023 (UTC)
 * Oppose and Apple Inc. doesn't outweigh Apple the fruit, either. --jpgordon&#x1d122;&#x1d106;&#x1D110;&#x1d107; 14:21, 20 September 2023 (UTC)
 * Oppose This is a joke, right? ᴢxᴄᴠʙɴᴍ (ᴛ) 15:27, 20 September 2023 (UTC)
 * No, it (was and) is not. But I see I clearly stand alone. --2001:1C06:19CA:D600:9749:A195:AD35:C8D7 (talk) 16:10, 20 September 2023 (UTC)


 * Oppose per the infinitely stronger long term significance of valve. The Apple vs. Apple Inc. example is spot on. Mdewman6 (talk) 16:12, 20 September 2023 (UTC)

The discussion above is closed. Please do not modify it. Subsequent comments should be made on the appropriate discussion page. No further edits should be made to this discussion.

RfC on including Valve Corporation in the hatnote
Should the hatnote include a link to Valve Corporation? 13:34, 21 September 2023 (UTC)
 * Comment Some context. In December 2014, consensus was reached for including Steam (software) (now Steam (service)) in the hatnote of Steam. At the time, closer User:Number 57 remarked: "Given the pageview stats identified by Project Osprey, it may even be worth considering a page move based on WP:PRIMARYTOPIC." With that in the back of my mind, I recently attempted such a move from Valve to Valve (device). It failed horribly, and got me feedback that included: "This is a joke, right?" Over the years, the corporation has been to See also, and  to the hatnote. Then  from See also, and  from the hatnote.  to the hatnote,  from the hatnote (disambiguation was created),  to the hatnote (in 2008), and most recently  from the hatnote (in 2019; edit summary "rm promo"). (This is not including vandalism, and things such as, then  from a § Types section;  as ", and is also a game developer", then ;  as a section, then ; etc.) You can tell by the "rm promo" edit summary that the same thing is happening as back then, when an editor commented, "more likely simple promotion of a commercial product or so it seemed to me". So, instead of trying to explain as an IP editor to registered users why including such links isn't promotion but simply user-friendly, then adding the internal link only to have it reverted the next second, I'm simply starting this RfC. Out of my hands now, what a relief. --2001:1C06:19CA:D600:F693:7DFE:B51F:3DD (talk) 13:34, 21 September 2023 (UTC)


 * No. I came here from the RfC notice, and, before reading the nomination note, I was, admittedly, prepared to say something like "of course not". The hatnote currently links to the DAB page for valve. And when I look at that DAB page, I find a link to Valve Corporation, but also links to other companies. So that leaves me with three reasons for answering "no" to the RfC question. First, there isn't a good enough rationale for mentioning one company's name in the hatnote, but not the others. Second, readers who are looking for the corporation will find it easily enough by following the link to the DAB page. And third, the primary topic is clearly the device, so all that's needed is the hatnote pointing to the DAB page. --Tryptofish (talk) 14:50, 21 September 2023 (UTC)
 * Seeing how many editors disagree with my view, and perceive the company as the obvious search target, I'm going to keep my comment as-is, but acknowledge that I might be wrong. (Think of that as a safety valve.) --Tryptofish (talk) 22:58, 10 October 2023 (UTC)
 * No I think the main reason for keeping it out is that any rational person will not simply type "Valve" for the company; they will realize they will be sent to the page on valves. Very few people aren't aware that a valve is an object, so they will naturally go to Valve Corp. Hatnotes are for when it's believable that someone will type in something, expecting full well to go somewhere other than the target. ᴢxᴄᴠʙɴᴍ (ᴛ) 16:19, 21 September 2023 (UTC)
 * I'm genuinely flabbergasted by your response. As I wrote in the section above, "Thousands of sources for Valve Corporation being known simply as "Valve" here, including for example this, this, this, etc." Also, am I assigning far too much value to how visitors are clicking from Valve to disambiguation and then to the corporation? And, is there any proof that the device has been a more popular subject on our website than the company at any time during the last, say, 10 years? --2001:1C06:19CA:D600:F693:7DFE:B51F:3DD (talk) 16:56, 21 September 2023 (UTC)
 * By the way, personally, I always expect to go to the company. Do you ever use valves anywhere? Do you have any in your house, or at your place of work? --2001:1C06:19CA:D600:F693:7DFE:B51F:3DD (talk) 16:57, 21 September 2023 (UTC)
 * Of course! And you do too :) Valves are everywhere and are crucial in any home/place of work for several systems/appliances. &#123;{u&#124;  Gtoffoletto  &#125;}  talk 17:21, 21 September 2023 (UTC)
 * Given that a faucet is a type of valve, I'd be surprised if anyone living in modern society didn't use them. That you believe valves are relatively rare suggests that you may need to bone up on your knowledge about types of valves and how common they really are. ᴢxᴄᴠʙɴᴍ (ᴛ) 12:41, 22 September 2023 (UTC)
 * Hm, yeah, I guess so. --2001:1C06:19CA:D600:9708:D6D0:803E:2FF0 (talk) 12:43, 22 September 2023 (UTC)


 * Comment + Yes I tried a google search for "Valve wiki" or "Valve" and it returns the wiki article on the corporation. Google thinks/has measured that users are mostly looking for the company and that they will bounce less if shown results to that page. Google will save most users from the mistake, but most users will be looking for the company and not the device so it might be helpful to provide a direct link from the hatnote for those that loose their way. In general however, as an encyclopaedia we should definitely keep the "device" as the "base article" and not attempt moves such as "Valve (device)" which is overkill and definitely sounds "promotional".  &#123;{u&#124;  Gtoffoletto  &#125;}  talk 17:21, 21 September 2023 (UTC)
 * Yes: given that the company's logo as styled as just "Valve", it is more plausible than it sounds at a glance. I'll also note that Valve Corporation got 68 000+ pageviews in the last 30 days. One little addition to the hatnote can't hurt. Edward-Woodrow  •  talk  21:34, 21 September 2023 (UTC)
 * Yes - Per Edward-Woodrow mostly. If we want a look at the past year the daily average of valve is 340 while Valve Corporation is 2,483.|Valve_Corporation With that I think it is reasonable that people are coming here expecting to find the corporation vs the device and hopefully the note will point them in the right direction. PackMecEng (talk) 00:17, 24 September 2023 (UTC)
 * Yes: Per Edward-Woodrow. In addition, Apple has a hatnote to Apple Inc. and Steam has a hatnote to Steam (service). ThatIPEditor Talk · Contribs 12:26, 30 September 2023 (UTC)
 * Comment So far, no consensus. Two "No", three "Yes" (and one "leaning yes?"). I suggest we wait for more input to reach actual consensus. --2001:1C06:19CA:D600:BC0A:66E5:B71A:404C (talk) 04:46, 9 October 2023 (UTC)
 * 4 Yes and remember this is not a vote. I Definitely see a WP:CONSENSUS emerging but more voices would help. &#123;{u&#124;  Gtoffoletto  &#125;}  talk 09:02, 9 October 2023 (UTC)
 * I'd say it is time to close this at this point! &#123;{u&#124;  Gtoffoletto  &#125;}  talk 21:32, 15 October 2023 (UTC)
 * Yes is silly we need to RfC this, but yes valve is in common parlance used to refer to the makers of Team Fortress and Portal as often as it refers to the mechanical object. Dronebogus (talk) 11:13, 10 October 2023 (UTC)
 * Yes. Surely the most-viewed article linked from Valve (disambiguation); gets more than twice as many views as vacuum tube (currently included in the hatnote) and nearly ten times as many as Valve itself. This seems like a perfectly reasonable aid to navigation. Caeciliusinhorto-public (talk) 15:28, 10 October 2023 (UTC)
 * Yes The game company is by far the most prominent alternate topic with this name. Partofthemachine (talk) 22:52, 10 October 2023 (UTC)

Rotary handles
Image top right has caption "These water valves are operated by rotary handles.". The words "rotary handles" are internally linked to "handle". Shouldn't just "handles" link to handle instead? Also, the word "rotary" isn't mentioned anywhere else in the article. And when I look up "rotary handle" (with quotes) at Google Images, there's not a single Google image that includes a valve that looks even close to the Wikipedia image. And I mean literally nowhere, until I scroll all the way down, and Google says "Looks like you've reached the end". --2001:1C06:19CA:D600:4D1B:ED1E:813:7A67 (talk) 20:20, 11 October 2023 (UTC)

Hatnote
Edit request to include Valve Corporation in the hatnote, per Talk:Valve. --2001:1C06:19CA:D600:3125:569F:6DBF:FE47 (talk) 16:27, 25 October 2023 (UTC)
 * ✅ Tollens (talk) 00:07, 26 October 2023 (UTC)

Internationalization
Valve links to globe valve in other languages (de). This is not correct. Globe valves are special valves, see also the list of valves. Valve is the generic term, which includes among others globe valves, but also ball valves, butterfly valve, etc. Con-struct (talk) 09:47, 22 December 2023 (UTC)

Semi-protected edit request on 31 January 2024
I want to fix the rotary handle link error Tking1225 (talk) 23:07, 31 January 2024 (UTC)
 * What error? The link works fine for me. Tollens (talk) 23:51, 31 January 2024 (UTC)

Incorrect information
The article mentions valves that are larger than 5 meters in diameter but I was only able to find butterfly valves 4.3 meters in diameter at best, a gate valve a little more than 3 meters in diameter and a 64" X 48" control ball valve Charcoal47 (talk) 13:55, 31 March 2024 (UTC)


 * Also the part of the valve which adjusts and restricts flow should not be called a valve disc in the heading when things like ball valves exists Charcoal47 (talk) 14:09, 31 March 2024 (UTC)