Re: Plastic pipe

To: tesla-at-pupman-dot-com
Subject: Re: Plastic pipe
From: "Human Buirski" <hbuirski-at-hotmail-dot-com> (by way of Terry Fritz <twftesla-at-uswest-dot-net>)
Date: Sat, 15 May 1999 18:26:33 -0600
Approved: twftesla-at-uswest-dot-net
Delivered-To: fixup-tesla-at-pupman-dot-com-at-fixme

Hi,

The place where I buy my pipes gave me a list of their product's properties 
(mechanical, thermal, electrical and a list of chemicals it's resistant too, 
if you want to know more).

Here is the electrical properties:

Dielectric loss factor: 0.03
Dielectric constant -at- 10 to power of 3Hz: 5.0-9.0
Flow/Volume resistivity: 10 to power of 14 ohm/cm
Surface resistivity: 10 to power of 13 ohm
Dielectric strength: 40-80 Kv/mm

I don't know what it's used for though.

Human Buirski
Pretoria
South Africa


>From: Tesla List <tesla-at-pupman-dot-com>
>To: tesla-at-pupman-dot-com
>Subject: Plastic pipe
>Date: Fri, 14 May 1999 16:18:57 -0600
>
>Original Poster: "David  Dean" <deano-at-corridor-dot-net>
>
>Hi
>I was given a joint of plastic pipe today. I saw it and thought it looked 
>like
>HDPE but it turns out it is PVDF. The guy gave it to me anyway, even though 
>the
>book he had did not have any specs for its electrical properties. The stuff 
>is
>used to pipe gasses in the manufacture of integrated circuits and resists
>higher temps. higher pressures and more corrosive chemicals than PVC. The 
>guy
>says this piece would cost about $400.
>It's 3 7/8 ID 4 3/8 OD and 20' long. Very heavy.
>Polyvinylidene Fluoride the chemical name.
>Anybody know what this stuff is, its dielectric properties, and whether or 
>not
>it would bee any good as a secondary former?
>  thanks in advance
>
>


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