Re: vac pumps

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "rheidlebaugh by way of Terry Fritz <twftesla-at-qwest-dot-net>" <rheidlebaugh-at-zialink-dot-com>

My pumps are welch brand and are used to rough pump the input of a vapor
diffusion pump. If your pomps are like my pumps they will last a long time
as long as you keep your oil clean and prevent forign input with a trap
ahead of your pump. My old pump is 50 years old of hard use and still like
new. Motors, belts, mount bolts fail and the pumps keep goin. Use a drip pan
   Robert  H 

> From: "Tesla list" <tesla-at-pupman-dot-com>
> Date: Tue, 09 Apr 2002 21:29:05 -0600
> To: tesla-at-pupman-dot-com
> Subject: Re: vac pumps
> Resent-From: tesla-at-pupman-dot-com
> Resent-Date: Tue, 9 Apr 2002 21:31:52 -0600
> 
> Original poster: "BunnyKiller by way of Terry Fritz <twftesla-at-qwest-dot-net>"
> <bigfoo39-at-telocity-dot-com>
> 
> Tesla list wrote:
> 
>> Original poster: "marc metlicka by way of Terry Fritz
> <twftesla-at-qwest-dot-net>" <mystuffs-at-orwell-dot-net>
>> 
>> Hello All,
>> I have access to several "sterling SIHI" VACUUM PUMPS. fROM WHAT I
>> GATHER, THEY USE A FLUID PUMPED THROUGH THE SYSTEM IN ORDER TO CREATE
>> THE VACUUM?
>> Product statements for the model lema 40 is 25 torr.
>> Is any coilers familier with this type of unit? should i keep two for a
>> "great" vacuum sytem?
>> Thank you,
>> Marc M.
>> 
>> 
>> 
>> 
>> 
> Hi Marc...
> 
> 25 torr is pretty low as far as a diecent vacuum goes...
> the systems sound like they might be the rotory vane type
> 
> there is the oil diffusion type but they can go as low as "milli torr"
> 
> I'll bet if you put one on Ebay it will sell for nearly 100$
> 
> 
> I'd keep at least 2 for myself if I had several in my posession ;)
> 
> Scot D
> 
> 
> 
>