Glossary entry

French term or phrase:

Joint Delta

English translation:

delta gasket

Added to glossary by Bashiqa
Nov 8, 2011 11:30
12 yrs ago
French term

Joint Delta

French to English Tech/Engineering Aerospace / Aviation / Space Valve test procedures
Is this some type of special gasket? Can't see that it appears anywhere else in the document.
FCA Fuite Collectée Actionneur
FCC Fuite Collectée au Clapet
FCJD Fuite Collectée Joint Delta
FCT Fuite Collectée Totale = FCA + FCJD
FNCE Fuite Non Collectée Externe (ergols / He)
Proposed translations (English)
3 delta gasket

Discussion

Ronald van Riet Nov 8, 2011:
that should be 77 K when a temperature is given in Kelvin, the "degree" symbol should not be used, only use that for Celsius (°C) or Fahrenheit (°F).
nitpicking, but it is still mighty cold...
Bashiqa (asker) Nov 8, 2011:
@ Bourth As far as I can see pressure is 315 bar maximum. temperature 77°K - bloody cold.
Bashiqa (asker) Nov 8, 2011:
@ Anton Could be but here's another entry:
• Cage joint delta + presse-joint delta
Anton Konashenok Nov 8, 2011:
Delta may stand for D "Delta" is the name for the letter D in the standard phonetic alphabet used in aviation (Alpha, Bravo, Charlie, Delta, ...)
Bashiqa (asker) Nov 8, 2011:
Here's anoth entry:
o le presse joint delta et le clapet
Michael Tovbin Nov 8, 2011:
simply "joint delta" This could simply be the designation of some joint or interface.

Proposed translations

3 hrs
Selected

delta gasket

www.metallogasket.com/heavy.html
#552 DELTA GASKET Triangular-shaped gasket inserted into triangular groove. Pressure range, 5000 psi and higher. Groove and gasket dimensions must be ...

www.lamonsgasket.com/html/styles2.html
A DELTA GASKET is a pressure actuated gasket used primarily on pressure vessels and valve bonnets at very high pressures in excess of 5000 psi. As with the lens ...

500 psi, they say. What sort of pressures are we dealing with in high-flying aircraft?

There is such a thing as a joint omega, an "omega seal" or "omega gasket" which is used in tunnel linings, amongst other things undoubtedly. That is indeed an omega shape in cross-section, as the delta gasket seems to be the triangular delta (Greek letter) shape.

"Delta seal" exists too, but most commonly in reference to US special forces.


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Note added at 4 hrs (2011-11-08 16:23:34 GMT)
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Your 315 bars is 4568.76 psi, which is a good match for the 5000psi referred to above.
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4 KudoZ points awarded for this answer. Comment: "Thank you for this. It's a pity that after 5,000 words I was told to STOP as the client had changed his mind!!! "
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