How to silence compressed air blasts

One or two of these will work:

Best Regards Tom.

Well the cheap way is to simply run the end into a common turbo style car muffler. (not a straight through type) That is what we had in both shops.

There should be a sensor that trips the purge cycle based on collected water. Some use a humidistat as well.

Routing the blast of air through a baffle box would help. See eg and for some discussion, and also look for "sound baffle box" (without quotes) on google images. As shown in some pictures, the surfaces in a baffle box should have sound-absorbing stuff (eg fiberglass insulation) on them. The box could be outside, eg a tall thin box fastened to wall, with exit opening pointed down.

Put on a muffler of course!

Gunner

The methodology of the left has always been:

1. Lie
2. Repeat the lie as many times as possible
3. Have as many people repeat the lie as often as possible
4. Eventually, the uninformed believe the lie
5. The lie will then be made into some form oflaw
6. Then everyone must conform to the lie

Most use a simple timer.

The methodology of the left has always been:

1. Lie
2. Repeat the lie as many times as possible
3. Have as many people repeat the lie as often as possible
4. Eventually, the uninformed believe the lie
5. The lie will then be made into some form oflaw
6. Then everyone must conform to the lie

"Howard Beal" fired this volley in news:kdanu0$tdg$ snipped-for-privacy@speranza.aioe.org:

That _style_ will work, but those are not large enough mufflers to serve the high pressure lines he's got.

Those are better as cylinder relief mufflers. Relatively low volume, relatively low pressure.

For point of reference, one about the size of the muffler on a small lawn mower would be about right -- say about 2" diameter and 5-6" long.

Common as dirt -- McMaster, Bailey, MSC, Adams Air... just about any pneumatic/hydraulic supplier has 'em.

LLoyd

"Ignoramus24985" wrote in message news:wpudnUjy6KUtRmXNnZ2dnUVZ snipped-for-privacy@giganews.com...

Perhaps a pipe-threaded lawnmower muffler would help?

I found a bin of air exhaust silencers similar to this in a second-hand store and use one on my vacuum pump:

The porous material inside resembles that used on chainsaw intake filters. The thread is more likely 1/4" NPT than 4".

I just tried it. While it doesn't "silence" the loud pump outlet it's quite effective for the price. It drops the sound level from 92 to

82dB and removes the annoying buzz from the vanes. jsw

Run the blast through a tapered cone, up to about 2 or 3 inch diameter, and run that (enlarged) pipe up above roof level and discharge across the roof. The lowered velocity will decrease the noise significantly, the larger pipe will lower the pitch, and the height will dispurse the sound.(and attenuate it)

I would try routing the blast of air into a 30 lb propane tank with a tee on the tank so that the inlet has no restriction but have a valve on outlet that lets the air out slowly. The tank needs to be mounted so water does not accumulate in the tank.

Dan