<VV> Air compressor distribution lines
stapon1 at earthlink.net
Mon Oct 31 18:18:20 EST 2005
The composition of the solder mentioned below is 95% tin / 5% silver. (If you know this, you can save some money when you purchase it). I like this material and recommend it because it is LEAD free!
More flux is better, but make sure it is water soluble and remove it when finished. Clean the material as well as humanly possible and as I said earlier, use nitrogen on the purge if possible.
Regards, (It's an active posting night) Garth
From: JVHRoberts at aol.com
Sent: Oct 31, 2005 3:03 PM
To: Rt66Vairs at aol.com, kentsu at corvairkid.com, virtualvairs at corvair.org
Subject: Re: <VV> Air compressor distribution lines
The silver solder I am talking about is sold in HVAC stores. Not
particularly high melting point, but FAR stronger than ANY plumbing solder. Make sure
you use the right flux. That's what I used, and my system is plumbed with 7/8"
refrigeration tubing and fittings. Light, easy to run, flexible, perfect. And
given that the head pressure on a heat pump can hit 300 PSI, I am not
worried about anything coming apart.
In a message dated 10/31/2005 5:55:29 P.M. Eastern Standard Time,
Rt66Vairs at aol.com writes:
I've only been fitting pipe for 35 years or so. So my opinions on this may
not be valid.
First choice for air lines... Type K Copper... You can use 95-5 solder for
Always use 95-5 solder for threaded adapters.
Silver Solder or SilPhos is better but don't use it on treaded adapters.
will soften them enough that getting a good seal and it being permanent may
be a problem.
The copper fitting can become anealed by the additional heat required.
Second choice... Type L Copper... Install in the same way as type K.
Third choice.... Schedule 40 iron... The copper isn't actually that much
better but it's much
easier to install.
If water in the air is a BIG problem invest in a refrigerated air dryer if
you are doing a lot of
painting. It will make you life much easier.
If you are using an oil lubed compressor install oil traps and a coalescing
filter BEFORE the
If you are only operating pneumatic tools install air drains and watch them
and use them. You
can install timed solenoid valves that will blow these down for you
regularly and take you're
forgetter out of the "cause of failure" loop.
Finally... Distribute the air at tank pressure and install regulators at
points of use. A
moisture trap at that point can be a good idea. But if have thoroughly
the air after the
tank they may not be needed.
Trust me on one thing... Water in our air systems is NOT our friend.
Don't ask me how I know this.
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