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DN40

English translation: Nominal Diameter (the number is the approximate bore diameter measured in millimetres)


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GLOSSARY ENTRY (DERIVED FROM QUESTION BELOW)
English term or phrase:DN40
English translation:Nominal Diameter (the number is the approximate bore diameter measured in millimetres)
Entered by: Nikita Kobrin
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20:00 Apr 11, 2003
English to English translations [PRO]
Tech/Engineering / Heat Pump Installation Instructions
English term or phrase: DN40
The chilled water hose (DN40) holds 1l/m
Nikita Kobrin
Lithuania
Local time: 11:35
DN 40 refers to a specific (nominal) flange size
Explanation:
DN plus a number identifies a specific flange size
It is a nominal size, ie the number is "only loosely related to manufacturing dimensions", as explained in
www.georgefischer.co.uk/malltechnical.pdf:

The concept of nominal size (DN) is now used to designate the size of a particular pipeline. It is defined in ISO 6708 as a numerical designation of size which is common to all components other than components designated by outside diameters or thread size. It is a convenient round number which is only loosely related to manufacturing dimensions. Nominal size is designated by the letters DN followed by a number. This number is the approximate bore diameter measured in millimetres.
Selected response from:

Maurizio Valente
Italy
Grading comment
Thanx a lot!
4 KudoZ points were awarded for this answer



Summary of answers provided
4 +2DN40
Gayle Wallimann
4 +2DN 40 refers to a specific (nominal) flange size
Maurizio Valente
4 +1Diameter Nominal [or, Nominal Diameter]
Terry Burgess


  

Answers


5 mins   confidence: Answerer confidence 4/5Answerer confidence 4/5 peer agreement (net): +2
DN40


Explanation:
I believe that it means the diameter of the hose is 40 MM (4 cm)

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Note added at 2003-04-11 20:06:06 (GMT)
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www.hutterer-lechner.com/hlx98eng/H_U_L/artikel.htm - 53k


    Reference: http://www.gfsignet.com/products/pdf/7000-7001fre.pdf
Gayle Wallimann
Local time: 10:35
Native speaker of: Native in EnglishEnglish
PRO pts in pair: 172

Peer comments on this answer (and responses from the answerer)
agree  David Sirett: nominal diameter
13 mins
agree  Sarah Ponting
10 hrs
Login to enter a peer comment (or grade)

16 mins   confidence: Answerer confidence 4/5Answerer confidence 4/5 peer agreement (net): +1
Diameter Nominal [or, Nominal Diameter]


Explanation:
See:

[PDF]WP- Dynamic
Formato de archivo: PDF/Adobe Acrobat - Versión en HTML
... Page 2. WP-Dynamic for cold water LB 1100 · Page 2 of 4 Pattern Approval
Sign Installation Diameter Nominal DN 40 ... DN 300 Marking ...
www.meinecke.de/datenblaetter/lb_1100_gb_wpd.pdf - Páginas similares

Combination Wiper Nominal Diameter 40 mm - [ Traduzca esta página ]
Combination Wiper Nominal Diameter 40 mm. ...
www.steinmeyer.com/english/technik/ kgt/abstreif/dopabs40.htm - 18k - En caché - Páginas similares

Rotating Flanged Single Nut, Ground Thread, Nominal Diameter 40 ... - [ Traduzca esta página ]
Rotating Flanged Single Nut, Ground Thread, Nominal Diameter 40 mm. ...
www.steinmeyer.com/english/produkte/kgt/rotmutt/40.htm - 26k - En caché - Páginas similares
[ Más resultados de www.steinmeyer.com ]

AST > Products > AST Stock Programme > Dimension standards > ... - [ Traduzca esta página ]
... DIN ISO 4200. EN ISO 1127. ANSI B 36.19 NPS mm. Nominal Diameter DN. Outer Diameter,
mm Serie. Imperial OD mm inch. Hygienic OD mm. ... 22 25,4. 25. 25,40 1. 22/23 25. 22
25. ...
www.ast.avestasheffield.com/products/sp_nominal_od.htm - 73k - En caché - Páginas similares

[PDF]Polyester cb
Formato de archivo: PDF/Adobe Acrobat - Versión en HTML
... Moorings Deep Sea Cable Recovery Ropes Supply Boat Moorings Tanker Moorings Nominal
Diameter 8 Strand ... 28 3.5 59.4 16.0 32 4 77.8 20.9 36 4.5 98.2 27.8 40 5 121 ...
www.marlowropes.com/offshore/polyester.pdf

Luck!
terry


    Above
Terry Burgess
Mexico
Local time: 03:35
Native speaker of: Native in EnglishEnglish
PRO pts in pair: 119

Peer comments on this answer (and responses from the answerer)
agree  Gayle Wallimann
14 mins
  -> Thank you Gayle:-)
Login to enter a peer comment (or grade)

2 hrs   confidence: Answerer confidence 4/5Answerer confidence 4/5 peer agreement (net): +2
DN 40 refers to a specific (nominal) flange size


Explanation:
DN plus a number identifies a specific flange size
It is a nominal size, ie the number is "only loosely related to manufacturing dimensions", as explained in
www.georgefischer.co.uk/malltechnical.pdf:

The concept of nominal size (DN) is now used to designate the size of a particular pipeline. It is defined in ISO 6708 as a numerical designation of size which is common to all components other than components designated by outside diameters or thread size. It is a convenient round number which is only loosely related to manufacturing dimensions. Nominal size is designated by the letters DN followed by a number. This number is the approximate bore diameter measured in millimetres.


Maurizio Valente
Italy
Native speaker of: Native in ItalianItalian
PRO pts in pair: 8
Grading comment
Thanx a lot!

Peer comments on this answer (and responses from the answerer)
agree  Derek Smith: very interesting - after religiously switching this to ND (thinking of nominal diameter as proposed by Terry) throughout a technical text originally in Italian (diametro nominale) - an engineer informed me that it remains DN also in English as you confirm
11 mins
agree  Sarah Ponting: yes, it's DN in English too
8 hrs
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