JORC auto drains
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rcontrera
Contributor
That auto drain is anywhere from about $70 to the $650 price range depending on material and pressures.
But it is a totally different animal than the Nuvair system. The Jorc has an electric solenoid that actually opens the blow down valve and it is a single point blow off. The Nuvair is a double point blow off and is air actuated. The solenoid opens and closes the actuating air instead of the actual valve.
But it is a totally different animal than the Nuvair system. The Jorc has an electric solenoid that actually opens the blow down valve and it is a single point blow off. The Nuvair is a double point blow off and is air actuated. The solenoid opens and closes the actuating air instead of the actual valve.
frogman62
Contributor
I am currently using an auto drain unit made by Fluidrain. This is an excellent unit that does not require a magnetic starter for the electrical system. Independent electrical power source from 24 to 240 volts with several PSI maximums. The most common I use is the up to 3625 PSI unit. Price is 255.00 plus shipping. Drain cycles can be set from 1 to 45 minutes and drain activation from .5 to 10 seconds -- easily set and changed by turning the two dials.
Jim Shelden 316-992-0505
<sheldensportinggoods.com>
Jim Shelden 316-992-0505
<sheldensportinggoods.com>
frogman62
Contributor
Yes, several operating ranges are available and can be installed as an add-on with a 115 volt electrical plug.
No, but with only a 1mm orifice to push the condensate junk through, you may be poking out the blockages every twenty
---------- Post added April 24th, 2012 at 09:37 PM ----------
To be frank the beauty of that Nuvair/Coltri system is that shows an understanding of both the Delta P pressure discharge problems from HP to ambient through such a small 1mm orifice and the equal potential blockage problem of particulate material.
Using a small dump timer as a pressure switch together with stepped pistons is not a new idea. You would have seen variants of this for the last 20 odd years from both Bristol Pneumatic and MAKO.
A pressure drop of this magnitude over 1mm would happily freeze water especially containing also a small amount of particulate.
It is one of the reasons why on commercial compressors a 2 micron cone or dome filter is fitted upstream of these small orifice solenoid valves.
Blockage of the discharge valve is a main culprit for valve "hydraulicing" as is over lubrication carryover. HP gas can move through the valve plate and valve area but not incompressible liquid.
Just be aware of this and ensure you also retain the original manual drain and use it often say every 10 minutes to check when the orifice blocks.LOL
I know it kind of defeats the object of the exercise but sometimes less money spent
is worse, than no money spent at all. Iain Middlebrook.
I would think a very frequent release (maybe every 5m) wouldnt allow much liguid to build up, so the release would barely have anything to freeze.
Although a 1/2 to 1s release seems barely enough air movement to freeze either. But yes, a 1mm orifice is a concern, but there's a test button on the unit, so I can test every once and awhile.
Although a 1/2 to 1s release seems barely enough air movement to freeze either. But yes, a 1mm orifice is a concern, but there's a test button on the unit, so I can test every once and awhile.
frogman62
Contributor
When the unit "dumps" at 3600PSI there is moisture and no trash to eject. Just set the drain time sufficient to purge all moisture (less than 10 seconds). I have had NO difficulty even with 1/4 pint of water draining and no freeze ups on any compressor or moisture trap.
BTW - 1 mm is the orifice size used on military compressors and the American Bristol factory units for 30 years. The pneumatic ones on Bristol compressors only failed when the O ring on the piston swelled from oil deterioration and then held the piston from opening the orifice.
Jim Shelden
BTW - 1 mm is the orifice size used on military compressors and the American Bristol factory units for 30 years. The pneumatic ones on Bristol compressors only failed when the O ring on the piston swelled from oil deterioration and then held the piston from opening the orifice.
Jim Shelden
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