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Old 01-06-2016, 08:51 PM   #1
davepl
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Finally plumbed for compressed air

I've done Sched40 PVC before, but once you've had that explode a few times you start to avoid it (and OSHA prohibits it I think, but I'm in my own house so can be as dangerous as I want to be).

I went with the 1" blue aluminum "fast pipe" you've likely seen on the TV shows. The pipe is cheap but each fitting is $15-$30 so that's what really adds up. I have about $750 into this total, not counting the dryer and hose reel and stuff I already had.

Looks pretty and should really up the game of my blast cabinet, which was running through about 100' of 3/8" hose before the gun beforehand. The large 1" pipe likely acts as a multi-gallon reservoir on its own, I imagine.

Beats me why vBulletin in the year 2015 can't figure out which was is up, so you get a sideways picture! [Edit: and it's actually 2016]
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Old 01-06-2016, 09:51 PM   #2
franken
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Re: Finally plumbed for compressed air

Looks nice, but how do you remove water?
"...about 100' of 3/8" hose before the gun..." Why run through 100' of anything to a blast cabinet unless the entire path is at max diameter? That small diameter is adding friction, which reduces volume flowed at pressure. A 1" tube flows something like 95% more volume than a 3/4" tube.
In my opinion (and probably fact), diameter should be the maximum from the outlet to as close as use as possible. Changes down before the final leg make no sense.

Pics or specs of the dryer and compressor?
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Old 01-07-2016, 03:27 PM   #3
davepl
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Re: Finally plumbed for compressed air

The dryer is in the first picture. And there are two drains there and a drain at every drop. Compressor is a Quincy QT54 I think, a 50-gallon 2-cylinder 240V upright. It's enough to supply constant air to the blast cabinet while only running periodically.

My point was that I -used- to have a 100' of hose (50 from compressor to dryer/regulator, 50 to blast cabinet). Now I have 1" hard line delivering air right to the cabinet. So it -used- to be bad, now it is good, if that makes sense.
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