Glossary entry

French term or phrase:

frette d\'étanchement

English translation:

sealing hoop

Added to glossary by Claire Cox
Apr 7, 2010 15:24
14 yrs ago
7 viewers *
French term

frette d'étanchement

French to English Tech/Engineering Energy / Power Generation Turbines
This is from a specification for a turbine maintenance contract, itemizing the jobs to be performed in each overhaul:

Révision des frettes d’étanchement

Is this some sort of seal reinforcement?

Many thanks
Proposed translations (English)
3 +2 sealing hoop

Discussion

Lori Cirefice Apr 7, 2010:
seal Hi Claire, I think seal is definitely the right idea, FWIW I've come across the term frette as used in the irrigation industry, it's basically a PVC ring used in PE pipe systems, I believe it's used on the outside of the pipes. Looking at definitions on Termimum and GDT, it could also be made of metal, perhaps more likely on a turbine?

Proposed translations

+2
1 hr
Selected

sealing hoop

frettes are usually hoops around cylindrical structures, to reinforce them. The turbine casing may need such reinforcement, and if it consists of several parts, they may combine this hooping function with an assembly and sealing function.

As here (no mention of sealing here, actually, but the frettes serve to both reinforce the cylinder and bolt sections together):

La deuxième partie, formant le corps du cylindre est constituée par 8 VIROLES de 2 mètres de hauteur. Chaque virole est un cylindre en fonte de 0,10 mètre d'épaisseur, FRETTÉ AU MOYEN DE CERCLES EN ACIER épais de 0,05 mètre et posés à chaud.
Ces FRETTES Se situent aux extrémités de chaque virole, leur profil se présente sous la forme d'une ÉQUERRE; LA BRANCHE VERTICALE FORME LA FRETTE PROPREMENT DITE et la BRANCHE HORIZONTALE SE BOULONNE SUR LA PARTIE CORRESPONDANTE DE LA FRETTE DE LA VIROLE VOISINE.
http://users.swing.be/ccocksta/ccmarche.htm
Put a rubber gasket between the two horizontal legs of the angle section and you have a frette d'étanchement.

Peer comment(s):

agree Isabelle17
1 hr
agree Bashiqa : Yes, it acts as both a seal and a support.
13 hrs
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4 KudoZ points awarded for this answer. Comment: "Thanks Alex"
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