[TheForge] pipe fittings was Re: forging questions

[terry l. ridder]

Hello Mike;

you told me this once several years ago.
is there a proper name or term for the cast iron fittings that have
right hand thread at one end and left hand thread at the other end?

You said that they were used to install hot water heat radiators.

I have a couple still laying around the garage somewhere.
I seem to remember that I am down to a few couplings and a 90deg elbow
and a 45 deg elbow.

On Mon, 18 May 2015, CGRAF wrote:

>
>
> From an anonymous source on yahoo answers:
>
> Nobody seems to get this right. I was a plumbing contractor for years and 
> would often pose this question to blank stares. I marveled that no one in the 
> biz could figure it out. Here's the real answer: Such fittings are correctly 
> called "st" which, because of the obvious and apparent abbreviation stands 
> for "street". But actually, it stands for "spigot"...because in old drainage 
> fittings (cast iron and clay) fittings were either hub (bell) x hub (bell) 
> which is a regular fitting...or hub x spigot (for close work without a nipple 
> in between two fittings). "Spigot" was abbreviated "st" which eventually 
> morphed into "street" and that my friends...is the real story
>
> Sounds like a logical morph to me.
> Rather like "one off" when we mean "one of a kind"
>
> Mike Graf
>

-- 
terry l. ridder ><>