[time-nuts] 1" 14 tpi UNS die

[Didier Juges]

Chuck,

In France, Gas Pipe threads are tappered. However, I do not remember if they
follow the Metric or British standard for size...

Didier

> -----Original Message-----
> From: time-nuts-bounces at febo.com 
> [mailto:time-nuts-bounces at febo.com] On Behalf Of Chuck Harris
> Sent: Tuesday, July 07, 2009 9:33 AM
> To: Discussion of precise time and frequency measurement
> Subject: Re: [time-nuts] 1" 14 tpi UNS die
> 
> Hi Dave,
> 
> That would 3/4 inch NPT (National Pipe Thread).  In the UK it 
> is known as "Gas Pipe".  As far as I can tell, it is standard 
> the world over.
> 
> There are some differences, that won't matter in your 
> application.  In Europe, NPT is frequently not tapered.  This 
> is apparently the result of not understanding that tapered 
> pipe thread is self sealing.  As a result, there have been 
> all sorts of o-ring jamb nuts and other insane stuff done 
> "over there" to try and form a temporary seal... but I digress.
> 
> -Chuck Harris
> 
> David C. Partridge wrote:
> > <http://pewa.panasonic.com/emp/products/gps_pdf/vic100.pdf> 
> is where I 
> > got the specification for the thread from.
> > 
> > Pipe has O.D. of 1".
> > 
> > Dave
> 
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