Asklemmy

43907 readers

1091 users here now

A loosely moderated place to ask open-ended questions

Search asklemmy 🔍

If your post meets the following criteria, it's welcome here!

Open-ended question
Not offensive: at this point, we do not have the bandwidth to moderate overtly political discussions. Assume best intent and be excellent to each other.
Not regarding using or support for Lemmy: context, see the list of support communities and tools for finding communities below
Not ad nauseam inducing: please make sure it is a question that would be new to most members
An actual topic of discussion

Looking for support?

Looking for a community?

Lemmyverse: community search
sub.rehab: maps old subreddits to fediverse options, marks official as such
!lemmy411@lemmy.ca: a community for finding communities

~Icon~ ~by~ ~@Double_A@discuss.tchncs.de~

founded 5 years ago

MODERATORS

472

Does each language have "lefty loosey righty tighty"? (lemmy.world)

submitted 1 month ago* (last edited 1 month ago) by vatlark@lemmy.world to c/asklemmy@lemmy.ml

313 comments fedilink hide all child comments

The world has a lot of different standards for a lot of things, but I have never heard of a place with the default screw thread direction being opposite.

So does each language have a fun mnemonic?

Photo credit: https://3.bp.blogspot.com/-Giy8OrYJTjw/Tfm9Ne5o5hI/AAAAAAAAAB4/c7uBLwjkl9c/s1600/scan0002.jpg

you are viewing a single comment's thread
view the rest of the comments

[–] SomeoneSomewhere@lemmy.nz 6 points 1 month ago (1 children)

I've heard flammable gas uses reverse (left hand) thread to prevent cross connection. At least for welding gases in NZ; not sure about natural gas.

[–] DempstersBox@lemmy.world 1 points 1 month ago (1 children)

Acetylene does, gas lines are standard pipe.

Suppose it's cause natural gas runs at like, 1-3 psi, while a fresh tank of acetylene is 5,000?

Least in the US

[–] SomeoneSomewhere@lemmy.nz 1 points 1 month ago

It's also torches and everything after the regulator, which run at much lower pressure. At least in NZ

I think it might be because they're connected and disconnected regularly so misconnection is a common problem, even with colour coding. Gas work on houses involves actually putting the fittings on pipe and is done by people who should be concentrating more on that rather than on what they're about to weld/cut.