Compressor muffler

[itsback]

I have a Devilbiss compressor which is kinda on the louder side. I have attached a picture and Im wondering if they make some type of intake muffler for this type of setup.
Thank you.

 

[aafadca]

Don't see a picture. You must have been attaching when I was reading That looks similar to my compressor. I can't find an aftermarket muffler/filter so I'm planning to cut a metal plate to fit the opening. Then drill a 1/2, 3/4 hole. Weld a threaded pipe fitting to it and then buy a muffler/filter to fit.

 

[itsback]

Theres two pics there, looking at them as I type.

 

[Bill Bowman]

I see the picture fine, just don't know the solution! Mine has a pipe thread connection.

 

[itsback]

I was in a building today and was looking at their Quincy and noticed how quiet it was with the threaded in muffler, but of course mine is not like that, surprise,surprise. So I figured they might make something different for mine.

 

[Fueler]

I clamped a radiator hose to mine followed by a cheap "Turbo" muffler. Took it a step further and ran it through the wall with a car air filter on the outside.
Now all you hear are the moving parts in the compressor.

Actually you can just run the hose out the wall without the muffler BUT you will annoy the neighbors big time. With a muffler you get a soft pockata, pockata when you stand right next to the air filter. Inside you can talk on the phone while leaning on the compressor.

 

[itsback]

How would you attach a hose clamp to this? This is what it looks like inside the filter area. It would be nice if it was sealed all the way around and in the front with a fitting. It may need a custom steel angle iron plate made.

 

[shoot summ]

Seems like you could make a metal plate, weld a short pipe ****** to it, use a union and install a normal compressor intake filter/muffler.

 

[hayhauler71]

here is a pic of mine. bought threaded plate at menards in the black pipe isle and modified it and bought the air filter through amazon.

 

[aafadca]

How would you attach a hose clamp to this? This is what it looks like inside the filter area. It would be nice if it was sealed all the way around and in the front with a fitting. It may need a custom steel angle iron plate made.

Mine just has one flat surface. (Charge Air Pro/Ingersoll Rand) I believe. But the angle iron idea is pretty good or weld two pieces together and go from there.

 

[itsback]

Nice work. Well I guess it's safe to say making your own is not an issue, do the mufflers cause any restriction in air flow and are they all basically the same?

 

[Fueler]

As noted I used a "turbo" muffler. This means it was cheap and likely loud on a car. Basically a metal casing with 2 or 3 baffles. No glass. Whatever is cheap will work. Even a quiet muffler has more air flow capacity than your air compressor inlets.

Your little bitty air inlets will not be bothered by anything you create. Actually will improve the flow.

I should note that the radiator hose mentioned was due to my compressor being a big ole giant IR dual stage. 7 old school Horseys as I recall.

 

[dschwarz]

itsback, I've got a kobalt 60 gal compressor with the same type air intake. I took a 1/4" piece of aluminum and trimmed it to fit the opening, tapped a 1/2" pipe thread hole in the center and fit a silencer from Solberg. Seems to work pretty good.

 

[itsback]

You know when you said turbo muffler I thought of a car muffler then said to myself, it must be some kind of compressor muffler. That's a very interesting idea, very creative. I guess I'll just make an angle iron cover to mount on top or even aluminum like dshwarz. Thank you for the input guys!!

 

[senlow]

I had a similar Devilpiss compressor years ago. I fitted a piece of aluminum angle to the compressor head, drilled and tapped it for a pipe fitting. I then bolted it on, sealed with silicone and screwed on a Solberg Silencer. Solberg makes an excellent filter / silencer.

 

[Squankum]

I had a similar Devilpiss compressor years ago. I fitted a piece of aluminum angle to the compressor head, drilled and tapped it for a pipe fitting. I then bolted it on, sealed with silicone and screwed on a Solberg Silencer. Solberg makes an excellent filter / silencer.

I did a similar thing, but with steel. Blow-by-blow at my thread:

http://www.garagejournal.com/forum/showthread.php?t=120300&page=12

Also, page 13.

I'm going to redo it someday with angle iron, drill and tap the top half of the angle iron so I can bolt the lid to it for a more secure fit. (I'm also going to add more silencer.)

I tried 2 Solbergs, it was kinda noise (like a dual exhaust is) so I limited it to one, and the Solberg specs indicate one is not a problem at all.

Check out the Solberg website, it's very handy.

 

[itsback]

Well heres another question. I removed the drain plug from the bottom before make sure there wasn't any water in the tank and to get the right size fittings to put a valve in to drain it once in a while because it's a real ***** to reach with a wrench. I then went back out to take some measurements as well as video it running to see the difference later. Well with it running the water is just dripping from the bottom instead of spraying out under pressure. Am I missing something here? Is there a ball in there or something?

 

[Fueler]

Better let the pressure all the way off before you go sticking a screw driver in there thinking that it's just a crud deposit. Could be but I have some scars from just such an endeavor that that prove even 20 lbs of air pressure suddenly released with rust particles in tow are bad juju.

 

[itsback]

I did now because it seemed odd to me. Is it just crud?

 

[itsback]

Well with all the air out I poked a wire hanger in there and a good amount of water came out. I'm tempted to put that thing up on blocks and flush it out with a garden hose.

 

[itsback]

I just checked out your thread squankum and that's pretty much what I'll be doing.

 

[toplessHO]

I got a Devilbis too but mines a 2 stage 80 gal tank
so noisy you would think an helicopter was landing on the roof.
I know that to silence air 2 90* turns a few inches apart do wonders.

 

[itsback]

I got a Devilbis too but mines a 2 stage 80 gal tank
so noisy you would think an helicopter was landing on the roof.
I know that to silence air 2 90* turns a few inches apart do wonders.

I'm not to sure what you mean.

 

[itsback]

I looked on Amazon and there are some different silencers on there. 10scfm to 55scfm, more expensive as they increase. Does that matter? I notice they get larger as well. Does size matter?��

 

[Squankum]

Oh, and the intake muffler adapater plate that I built, i ran my tap into that metal just assuming, hey, NPT is taper. Then the elbow I screwed in just kept going until it bottomed out against the plate. At the time, I didn't know there were such things as NPT nuts. So easier than drilling with just the right drill bit, and tap, I could have just drilled a slightly bigger round hole, and run a nut up the elbow from the other side of the plate. With Loctite for retention, and maybe sealing, too.

Stainless Steel 316 Cast Pipe Fitting, Hex Locknut, Class 150, NPT Female
Merit Brass
Link: http://amzn.com/B003GSL4K8

Also, while I don't dislike my Campbell-Hausfeld drain valve extender kit, when I bought it, I didn't know about yanky toggle valves. If I had to do it all over again, or I ever become old and stiff and hate kneeling, I'd get one of these:

Tramec 35002-048 1/4" NPT Remote Control Lowprofile Drain Valve 48" Lanyard
by Tramec
Link: http://amzn.com/B001Q6M60Y

 

[Squankum]

I just checked out your thread squankum and that's pretty much what I'll be doing.

Again, if/when I do it again, I'll just angle iron, not flat plate. I can make it sronger that way, letting the cover (mine is cast aluminum and ribbed) get involved with holding it stable.

 

[Squankum]

I looked on Amazon and there are some different silencers on there. 10scfm to 55scfm, more expensive as they increase. Does that matter? I notice they get larger as well. Does size matter?��

I think all you need to do is get the right size for your needs. My memory is hazy, but I think I selected mine (pretty much the wee one) based on the output, clearly labelled on my compressor.

My Campbell-Hausfeld drain extender is at the botom of this pic, too.

My compressor is like yours -- belt drive, two cylinders, but I think less HP (your sticker is obstructed) and I have no idea how much air pump displacement right now. One tip people have given in these situations is to time your compressor's pump-up from kick-on to kick-off with and without the intake muffler, if you're concerned about restriction.

There are many threads on GJ about quieting compressors, other factors like location, sound reflecting walls or corners, enclosures.

My belt guard is stamped sheet metal and I did put a strip of small weatherstrip foam between it and the motor/pump platform. and that helped a little, too.

Hey, wait, I've got a spare one now. Wanna buy a Solberg FS-06-050? PM me.

 

[itsback]

Pm sent

 

[Fixnair]

Google "Atomuffler" They make mufflers for compressed air. Get a 1/2" pipe muffler and fabricate a piece of angle iron plate to replace your existing filter arrangement. I know the muffler is not really designed to be an air filter but it will do as good a job as that cheap air filter the manufacturer provides. You would be surprised at how much noise is attenuated with a muffler.

 

[ToddG]

I fabbed up a plate and pipe fitting too. In the end it didn't quiet the beast down much at all. My Devilbiss is just a loud compressor. I think most of the noise comes from the rod knock...

 

[toplessHO]

I'm not to sure what you mean.

if you was to put 2 90s in it vs one 90 it will quiet it down
sound waves and air dont move the same way. Sound is reflected back.

I looked at mine today,its got a large box with filter media in it(which I changed today).
I can quiet mine way down just by cupping a hand over the intake slots
blue tint to pic is crappy cell ph pic

 

[itsback]

Oh ok, I just didnt understand your point. I get it now. Yes, once I get it started I will play with it and see what works best. I will be buying the smaller Solberg from Squankum to try that one first. It is the smallest one but for the price its worth giving it a shot, I can always go bigger and add 90's like you said and see how it all plays out.

 

[toplessHO]

Oh ok, I just didnt understand your point. I get it now. Yes, once I get it started I will play with it and see what works best. I will be buying the smaller Solberg from Squankum to try that one first. It is the smallest one but for the price its worth giving it a shot, I can always go bigger and add 90's like you said and see how it all plays out.

get 2 street ells and you can position however you like

 

[gayler]

Sorry to high jack, but with a threaded on muffler would extending the pipe up into the attic be a good or bad idea?

 

[Squankum]

Sorry to high jack, but with a threaded on muffler would extending the pipe up into the attic be a good or bad idea?

I've read of people doing that on GJ before. Into the attic or outdoors. Junkyard pickup truck mufflers, Thrush glass packs, people have done all sorts of stuff. Locally, I've seen a shop that has what looks like just a little economy car muffler on their compressor's intake.

itsback, do you have rubbery feet or anything underneath your compressor?

 

[GYPSY400]

I've read of people doing that on GJ before. Into the attic or outdoors. Junkyard pickup truck mufflers, Thrush glasspacks, people have done all sorts of stuff. Locally, I've seen a shop that has what looks like just a little economy car muffler on their compressor's intake.

Ive heard of this before ( a friend of mine worked at a muffler shop).. If you put two in series, it makes it almost silent.. I'm eventually going to try it on my big 80 gallon DV


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[toplessHO]

Ive heard of this before ( a friend of mine worked at a muffler shop).. If you put two in series, it makes it almost silent.. I'm eventually going to try it on my big 80 gallon DV


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does you 80 gallon DV look like mine?
Is yours 2 stage?

 

[rexer]

Made this out of 3/4" pvc I had laying around, it is quieter somewhat.. Look's funny..

 

[itsback]

That looks cool. I will get some type of rubber isolation under the feet.

 

[GYPSY400]

does you 80 gallon DV look like mine?

Is yours 2 stage?

Possibly.. I just bought it last summer.. It's a 2 stage.


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