RE: [PSUBS-MAILIST] Source for a demand regulator?/bellows

["Graham K" <cryogenicz@dsl-only.net>]

seems like too much work, you can buy the bellow material from some
manufacturers...

like:

http://www.cliflex.com/bellows.html

Very good site...

Regards,

Graham

-----Original Message-----
From: owner-personal_submersibles@psubs.org
[mailto:owner-personal_submersibles@psubs.org]On Behalf Of William
Alford
Sent: Wednesday, June 05, 2002 6:41 PM
To: personal_submersibles@psubs.org
Subject: Re: [PSUBS-MAILIST] Source for a demand regulator?/bellows


At 02:41 PM 6/5/2002 -0500, you wrote:
>I've been trying to track down the metal bellows myself, with the
>intent of building one of those units myself.

take a look at Item # TD9153 at
http://www.aaaim.com/cgi-local/shop991/shop.pl/SID=308430750264/page=TRAN.ht
m#TD9153. If this link doesn't work, go to
http://aaaim.com/cgi-local/shop991/shop.pl/page=start_shopping.htm and
enter the part number in the search. This is a brass bellows unit in nice
housing that moves enough to move a slider potentiometer to change
resistance. Max pressure is 0 -15 PSIG, so sensitivity of movement may be
adequate? Rip out the resistor linkage, etc and retrofit. Hey, it's only
$15!

Now, how about somebody posting design specs for machining the O2
valve/seat from scratch.

William Alford
walford@dbtech.net

Tout comprendre c'est tout pardonner