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wear travel

Italian translation: corsa di usura

GLOSSARY ENTRY (DERIVED FROM QUESTION BELOW)
English term or phrase:wear travel
Italian translation:corsa di usura
Entered by: martini

11:37 Sep 15, 2020
English to Italian translations [PRO]
Tech/Engineering - Mechanics / Mech Engineering / gate valves
English term or phrase: wear travel
A parameter in gate valves, here is the definition:
"Recall that this API 600 requirement is for a wedge gate valve. As the name implies, a wedging force is used to accomplish sealing. To accomplish the minimum seating force for sealing, the disc must be pushed down beyond the point at which the two seating surfaces come in contact. Therefore, the two surfaces are rubbing together and seat material is being removed (wearing is taking place). To make up for this loss of material, the disc must travel further into the valve to come in contact and seal. The seating takes place higher and higher on the disc seat face. After enough closings, you run out of seat face, and the surfaces at the top and/or bottom of the seat will not be in contact after the valve is "closed" (little crescent moons). (In my copy of API 600 there is a figure that illustrates this action.)
The amount of travel required to accommodate this seat wear is called the "wear travel," and the wider the seat, the greater the amount of travel possible. Therefore, the words in API 600 require the manufacturer to have seat widths that will accommodate a specified travel. Since the seat ring is chamfered on the inside and outside diameters, it is the width of the seating face on the disc that controls the amount of wear travel.
During final assembly, the valve disc is fitted to the valve body by grinding the seating surfaces. It is at this point in the process that the seat ring is verified as contacting the disc seating surface at the design location (closer to the inner edge of the disc seating surface at the stem end of the disc)."
Francesco D'Arcangeli
Italy
Local time: 20:59
corsa di usura
Explanation:
la corsa che determina l'usura e quindi il fatto che
the gap between the two seat rings will be wider
http://www.teko-valve.com/index.php?route=pavblog/blog&id=18
Selected response from:

martini
Italy
Local time: 20:59
Grading comment
Thanks!
4 KudoZ points were awarded for this answer



Summary of answers provided
4 +1corsa di usura
martini


Discussion entries: 1





  

Answers


59 mins   confidence: Answerer confidence 4/5Answerer confidence 4/5 peer agreement (net): +1
corsa di usura


Explanation:
la corsa che determina l'usura e quindi il fatto che
the gap between the two seat rings will be wider
http://www.teko-valve.com/index.php?route=pavblog/blog&id=18

martini
Italy
Local time: 20:59
Specializes in field
Native speaker of: Italian
PRO pts in category: 1066
Grading comment
Thanks!

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