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Re: [APD] Needle valves
Here is the master list of valves:
Pinch valve $2 ok for trimming if you have no money
Clippard about $15-20 including shipping, ok for trimming, not ready
for primetime as a sonic valve
Fabco NV-55 $27 from me including shipping, this valve is worth twice
the price, very good
Swagelok used to make a pretty great valve, but it appears to be hard
to find them now. They are about as good as the Fabco, but cost about
twice as much and are not as easy to adapt to tubing.
Hoke Micro-metering $175 or so, these are wonderful valves, the
world's best, much better than all the above, but they sure cost a
lot. Somebody said they found one for $40, if you can do this, buy
it. For $40 it is a great deal.
--
Dave Gomberg, San Francisco NE5EE gomberg1 at wcf dot com
http://www.wcf.com/apbook for Kasselmann's "Aquarium Plants" book SPECIAL
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