Results 1 to 5 of 5
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17-01-2011, 08:30 PM #1
Armstrong air purger modification
Armstrong air purgers are a pain & expensive if needle & seat leak on air release mechanism.
There is an add on to rectify very easily & I am not sure if its only being done in Australia & who actually invented modification, but it works.
-Add on is basically plug off air release connection with 1/4" plug.
-Remove relief valve on top if instaled (1/2")
-Screw in Parker stainless steel LLC float switch
-In outlet of LLC float screw in a tee , with one branch of tee re-instal relief valve & other branch of tee screw in a solonoid (small as possible) followed by needle valve & check valve.
-Bracket if necassary
-Wire up solonoid in series with float switch .
Takes several hours & finished. The only thing really to maintain is solonoid valve which you could instal a stop valve before it as well if you wanted to .
Everything is screwed type fitting
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18-01-2011, 08:00 PM #2
Re: Armstrong air purger modification
I much prefer the Hansen purger over the old armstrong.
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18-01-2011, 08:33 PM #3
Re: Armstrong air purger modification
TXiceman,
Could'nt agree more but years ago there was'nt anything else out there.
It would be rare to put in a new one these days.
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28-02-2011, 07:15 AM #4
Re: Armstrong air purger modification
Every amstrong i have worked on has leaked on the internal serpintine coil, as well as constant recomissioning
Hansen are plug n play, I prefer manual purging, unless there foul gas outlet is clocked by scada otherwise could hide a low side leak
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06-05-2011, 07:43 AM #5
Re: Armstrong air purger modification
Hi all, I know the guy that did the first LLC float change. I have also converted the latest Hansen non electrical to float control, The factory needle and seat is a very poor design.
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