Talk:British Standard Pipe

message: * Georgefischer Co.
The above link no longer works. Peter Horn 19:58, 28 August 2006 (UTC)
thread_title: External links

message: Could you please provide a reference for the recently added outer-diameter inch figures? An ISO or BSI document preferably.  BS EN 10226 does not contain any pipe dimensions, only thread dimensions. Therefore, also the term "Pipe size" is misplaced here, the standard says "Thread size". Markus Kuhn 16:36, 5 September 2006 (UTC)
thread_title:  Outer pipe diameter 

message: I want to know if it's possible to screw a tapered male thread into a parallel female thread, or vice versa. Someone must know this?IMacThere4iAm 09:35, 26 October 2006 (UTC)
thread_title:  Parallel/tapered 

message: Any idea, where the letters G for parallel and R for tapered thread (as well as Rp and Rc) come from? Are these derived from some word in some language? Markus Kuhn 14:01, 10 February 2007 (UTC)
replies: text: I don't beleive the G could stand for gas since the G standard refers to ISO 228 which is named: "Pipe threads where pressure-tight joints are not made on the threads".   Any pipe carrying gas would want a pressure tight joint. I have not been able to find any official documentation for the origin of the G nomenclature. Dsh1001 (talk) 05:36, 12 May 2023 (UTC)
thread_title:  Letter code 

message: I later found the long and useful Wiki article on Screw Threads, which should be linked here. Clwydd (talk) 18:55, 21 July 2009 (UTC)
replies: text: It is in the first sentence. Wizard191 (talk) 20:22, 21 July 2009 (UTC)
thread_title:  Add link 

message: An authoritative comment should be made about the following:
Strictly speaking, BSP threads should only be referred to using the fractional inch-based numbers, eg, 3/8, 1/2, 3/4, 1, etc. Neither the word inch, nor the symbol " should be used, because no such references are used in the Standards.
In particular, the commounly accepted metric (mm) equivalents of these inch sizes, eg, 10mm, 15mm, 20mm, 25mm should not be used because again, the Standards contain no such references.
Also, the equivalent metric pipe sizes, eg DN10, DN15, DN20, DN25 (where DN means nominal diameter of the pipe) etc should not be used because again, the Standards contain no such references, and at any rate, these sizes refer to pipe sizes, not thread sizes or forms.
However, in practice, the mm sizes of 10, 15, 20, 25, etc are very commonly used, so perhaps the discussion should acknowledge this, and if so, the mm number for every thread size should be listed, and a determination made as to whether DN or mm should be quoted. My own view is that DN is preferable because this refers to the pipe size, and any given pipe size can only be threaded to the same thread size, whereas mm is an exact mm dimension but one which has no direct relationship to the thread size, eg, 1/2" is 12.7mm not 15mm, and 3/4" is 19.1mm not 20mm, etc.  —Preceding unsigned comment added by Jgrahamssmith (talk • contribs) 02:51, 22 April 2010 (UTC)
thread_title:  inch v. mm nomenclature 

message: Why isn't the nominal size given in fractions eg ? In my umpteen years of working with threaded fittings I have never seen a part advertised as 0.375 always as . Dash sizes are seldom seen either. Dash sizing could do with an explanation, though it appears to be the nominal size expressed as sixteenths this is not stated. GraemeLeggett (talk) 15:30, 6 September 2011 (UTC)
thread_title:  Nominal size 

message: Does BSP extend to a specification of washer sizes? That question was asked today at Wikipedia:Reference_desk/Science#BSP_WASHER_SIZES. --Tagishsimon (talk) 01:24, 28 June 2012 (UTC)
thread_title: Washers

message: The table in British_Standard_Pipe#Pipe_thread_sizes has a number of (for me) incomprehensible initialisms. What does DM mean? BSP.PL (Rp)? The table needs a key explaining these initialisms if it is to be of use to the reader unfamiliar with the subject matter. --Tagishsimon (talk) 01:24, 28 June 2012 (UTC)
thread_title: Pipe thread sizes table needs a key

message: This needs to come up for BSP on the search. Sorry I don't know how to do that.  — Preceding unsigned comment added by Nibinaear (talk • contribs) 18:40, 13 July 2016 (UTC)
replies: text: This has been fixed over at BSP since the comment was posted. — ¾-10 05:18, 30 December 2016 (UTC)
thread_title: BSP alias

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thread_title:  External links modified 

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thread_title:  A Commons file used on this page or its Wikidata item has been nominated for deletion 

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