por obturación directo/indirecto

16:40 Mar 21 

In the end I'm going to go with:
Flow (or) velocity type pneumatic comparator
Back pressure type pneumatic comparator
Differential pneumatic comparato

after reading these lecture notes which refer to adjusting the flow of air through a tapered glass tube.

https://lecturenotes.net/uploads/lesson_files/08e6ddb7f7f062...

Thanks once again for all your suggestions.
Robert, how do I award you points?

10:24 Mar 21 

Yes, thanks for your input Robert. I have seen those types mentioned on the Solex websites, and also considered them. I think though that the three points in the slide refer to the way air pressure is regulated, and I'm not sure those types reflect that idea. I've copied and pasted those three types on the Solex website in a note to self, and will go back to it.

02:21 Mar 21 

Liz Askew asks But why is the adjective masculine? I believe the adjective may be connected to the word "comparador" rather than "obturación", i.e., comparador directo (por obturación), comparador indirecto (por obturación)

Have you looked at pneumatic comparators (or Solex air gauges) as described in English texts?

"Pneumatic Comparator Types
These comparators are normally available in three types which are discussed below.

Flow/Velocity type Pneumatic Comparator.
Back Pressure type Pneumatic Comparator.
Differential type Pneumatic Comparator."
https://www.elprocus.com/pneumatic-comparator/

"Types of pneumatic comparator
Basically, the pneumatic comparators are classified into three types.

Flow (or) velocity type pneumatic comparator
Back pressure type pneumatic comparator
Differential pneumatic comparator"
https://www.engineeringtribe.com/pneumatic-comparator/

Question remains as to which ones are which.
If I had to hazard a guess I'd say:
por estrangulación = flow type
por obturación directo = back pressure type
por obturación indirecto = differential type

19:31 Mar 20 

I found 'restriction' in a couple of documents on Solex comparators, but I don't know whether that's 'estrangulación', or 'obturación', or neither.

19:23 Mar 20 

I like "indirect/direct /shutoff, but don't really know enough about the field to post an answer.

18:44 Mar 20 

Although I think after looking at the comments below, perhaps 'shut-off valve' might be better here instead of 'throttle'

18:40 Mar 20 

Yes, I did consider 'obturation' and 'sealing', but can't find anything related to pneumatic comparators when I do a search with these terms.

Thanks for the link Phil, I consulted this website too.

I translated it (tentatively) as 'throttle' - I suppose like the throttle in a car engine. I think it's right according to the websites I've seen.

16:51 Mar 20 

A pneumatic comparator compares components to a standard one, to ensure they're the right size.
http://www.engineeringtribe.com/pneumatic-comparator/

Have you considered 'obturation'? It means obstruction, but I'm not sure if that's the right word either.

How have you translated 'estrangulación'?