Compression - Show Off Your Compressor

[RAYJAY]

Short answer is that there were enough btu's transfered from the moisture laiden warmer air to the colder (relative) glass such that the air temperature near/at the glass reached the dew point at which water vapor is no longer supported and condences out on the surface of the glass.

There must be heat transfer in order for the hot compressed air temperature to be lowered so the dew point is reached and water is condenced out. Copper pipe being a better thermo conductor than iron can facilitate the heat transfer more efficiently.

ok then explain why the steel work better than the copper in my application, and why the old school painters told me to go to steel pipe?

 

[rinny_tin_tin]

ok then explain why the steel work better than the copper in my application, and why the old school painters told me to go to steel pipe?

Some applicability confusion here. This is a heat and mass transfer problem. The steel has more mass and thus the ability work as a *condenser* longer than equivalent Cu pipe - despite Cu being 20 X better conductor. -- perhaps explaining why the steel is working better for RayJay. Also, the material assumes ambient temp -- so metal=metal-metal=metal -- except for mass in this case.

QED

 

[Jack Olsen]

How do you guys carry on a conversation with a compressor sitting out in the open? I put mine in a heavily-insulated box in the basement, and then ran a line to the garage. To keep the compressor from overheating, I have air ducted into the box with a blower that's triggered by one of those Craftsman load-sensing switches that you'd normally use for a sawdust collection system with a saw. Whenever the compressor cycles on, the cooling fan automatically starts piping in fresh air.

All I have to keep in the garage is the air line.
________
Kawasaki F5

 

[rinny_tin_tin]

How do you guys carry on a conversation with a compressor sitting out in the open? I put mine in a heavily-insulated box in the basement, and then ran a line to the garage. To keep the compressor from overheating, I have air ducted into the box with a blower that's triggered by one of those Craftsman load-sensing switches that you'd normally use for a sawdust collection system with a saw. Whenever the compressor cycles on, the cooling fan automatically starts piping in fresh air.

All I have to keep in the garage is the air line.

I developing a similar arrangement - cept I'm planning to put the compressor underneath the stairs, box it in and insulate with fire/sound proofing, duct the intakes, and provide on-demand external fan cooling to continue some finite duration beyond when the compressor shuts off. I think I'm also going to supplement the power cooling with a solar-powered light duty fan in the enclosure to circulate air whenever the sun shines. This light-duty solar-powered fan won't provide the necessary cooling when the unit is working, but will, in theory, keep the ambient temp in the enclosure somewhat reasonable and minimize temp differential with the external temp for those sun-pounding days. I'm also installing a smoke detector within -- just in case!

 

[MisterCMK]

A toy:

 

[79firebird]

MisterCMK nice toy im working on one my self. got a tank and head free and bought a used 5hp motor for it almost got it all done

 

[Jack Olsen]

I developing a similar arrangement - cept I'm planning to put the compressor underneath the stairs, box it in and insulate with fire/sound proofing, duct the intakes, and provide on-demand external fan cooling to continue some finite duration beyond when the compressor shuts off. I think I'm also going to supplement the power cooling with a solar-powered light duty fan in the enclosure to circulate air whenever the sun shines. This light-duty solar-powered fan won't provide the necessary cooling when the unit is working, but will, in theory, keep the ambient temp in the enclosure somewhat reasonable and minimize temp differential with the external temp for those sun-pounding days. I'm also installing a smoke detector within -- just in case!

What's your plan for the switch and delay for the cooling fan? I tried a couple of things before I settled on a $20 load sensing switch from Sears -- but I have a 110v compressor.
________
drug rehab forum

 

[rinny_tin_tin]

What's your plan for the switch and delay for the cooling fan? I tried a couple of things before I settled on a $20 load sensing switch from Sears -- but I have a 110v compressor.

Good question....I have not yet started a search yet for a cheap COTS solution...I'm sure if I search, I'll find some sort of event trigger relay with an integral timer etc........but if push comes to shove, I can always rig something up with a 555 timer, relay and a handful of assorted junk box components.....but I'm very very lazy and will likely spend time *surfing* for an off the shelf device prior to breaking out my soldering iron and my 555 reference books.

 

[rinny_tin_tin]

What's your plan for the switch and delay for the cooling fan? I tried a couple of things before I settled on a $20 load sensing switch from Sears -- but I have a 110v compressor.

While sitting on my fat lazy ***....Here is one viable example of a ckt that can be used with your load center based on a 555 timer ...

http://www.aaroncake.net/circuits/relaytim.asp

 

[rinny_tin_tin]

What's your plan for the switch and delay for the cooling fan? I tried a couple of things before I settled on a $20 load sensing switch from Sears -- but I have a 110v compressor.

Here is a simple COTS device--a time delay relay w/off delay from eBay...

http://cgi.ebay.com/SQUARE-D-FS-15-...hash=item250024623961&_trksid=p3286.m20.l1116

 

[ktm450]

How do you guys carry on a conversation with a compressor sitting out in the open? I put mine in a heavily-insulated box in the basement, and then ran a line to the garage. To keep the compressor from overheating, I have air ducted into the box with a blower that's triggered by one of those Craftsman load-sensing switches that you'd normally use for a sawdust collection system with a saw. Whenever the compressor cycles on, the cooling fan automatically starts piping in fresh air.


All I have to keep in the garage is the air line.

I have an old 60 ga. champion 2 stage (Built in 1951!) The pump runs at 510rpm and is very quite. standing next to it you can hold a conversation. That's what I like about some of the older compressors. Swapped my old craftsman 20gal straight across with the neighbor for the champion. He wanted portability, I wanted QUITE.

 

[mike t]

ok got a kobalt 60 gal with bad pump for $75 .Put a emglo pump on it seems to work good any out put on what you thank thanks mike t

 

[bmwpower]

How do you guys carry on a conversation with a compressor sitting out in the open? ,,,,.

Get a quiet compressor.

 

[zachk]

Don't have any pics but we have a 3-4 gallon pancake from princess auto a few years back as the main compressor. When my dad was painting at home, he used a 5hp, 2stage 80gallon compressor. I don't know the model for the 80 because it hasn't been used in a good 5-7 years. The circuit in the garage can't even power it. Lol

 

[e-tek]

Another helpful post....what brand is "quiet" BM?

 

[zachk]

Another helpful post....what brand is "quiet" BM?

Our compressors are loud as ****. Lol. I've never heard of a "quiet" compressor. Unless its in a different building then mine.

 

[JakeD]

I've got this little 30 gallon IR compressor, and it's extremely quiet. You can have a conversation standing right next to it no problem. That's the reason I bought it for my garage; I could have got a big loud ******* for the same money.

It's not all balls to the wall like most of the monsters in this thread, but the ~6acfm@90 is ok for the stuff I do.

 

[ktm450]

Another helpful post....what brand is "quiet" BM?

Look for an older commercial 2 stage. IR, Champion, Quincy are a few good brands. Find something in the 2-5 HP range. these older compressors run a very low RPM, often 500 RPM +/- with large cylinders. And with a 60-80 gal. tank they don't run for long or very often unless your spraying or blasting.

 

[zepherman]

Where can I buy some large rubber feet for my air compressor?

After looking through this thread, I saw some compressors that have some thick, wide rubber feet on them like the one in the pic.

I just ordered an Ingersoll Rand 60 gal. vertical compressor, and it does not come with rubber feet. I want to order some for it, does anyone know where I can buy some?

Thanks in advance,

Seth

 

[Jim Stabe]

Re: Where can I buy some large rubber feet for my air compressor?

After looking through this thread, I saw some compressors that have some thick, wide rubber feet on them like the one in the pic.

I just ordered an Ingersoll Rand 60 gal. vertical compressor, and it does not come with rubber feet. I want to order some for it, does anyone know where I can buy some?

Thanks in advance,

Seth

Hockey pucks straight from the sporting goods store. Really cheap online, I got mine for $1 apiece, no tax.

 

[wadd1]

Another Craftsman Pro
bought on sale 650 CAD

 

[zepherman]

Re: Where can I buy some large rubber feet for my air compressor?

Hockey pucks straight from the sporting goods store. Really cheap online, I got mine for $1 apiece, no tax.

Hmmm that's a very ingenious idea, I never would have thought about that. Thanks for the tip.


Seth

 

[e-tek]

How do you guys carry on a conversation with a compressor sitting out in the open? .

I have a 3 cylinder compresssor which is very quite (comparatively), but otherwise, I work alone!

go with black pipe its better than copper,

RAY is right. As was said later, it's due to the mass. If someone (OCG - got a few hours?) has some time, there's an easy way to put this whole Copper/Black Pipe thing to rest. Run an equivalent length of each pipe off the same compressor with a filter at the end of each run. Work them out for a few hours and test the exude. Amount of water, rust, sediment, etc., can all be measured. Case would be closed. Aeny takers?bm?? You'd be a hero among GJ members!! Unless you ran your mouth for the pipe that looses.

Here's a couple pics of a trap i checked this weekend.

 

[bmwpower]

Another helpful post....what brand is "quiet" BM?

Our compressors are loud as ****. Lol. I've never heard of a "quiet" compressor. Unless its in a different building then mine.

An oil lubed one...duh. I thought eveyone knew that. How long have you been here?

 

[c39er]

I have an old 60 ga. champion 2 stage (Built in 1951!) The pump runs at 510rpm and is very quite. standing next to it you can hold a conversation. That's what I like about some of the older compressors. Swapped my old craftsman 20gal straight across with the neighbor for the champion. He wanted portability, I wanted QUITE.

My 1961 Ingersol Rand 80 gallon is very smooth and quiet also. It's got a 3 HP125 lb. frame 215 motor on it. 2 stage Compressor is extremely heavy too-very quiet and smooth. This old thing sandblasts for hours and never has failed me in 15 years. Can stand right next to it and talk with no problem. It's this new light weight **** built today that doesn't have long life quality built into it! I don't need any compressor room!
Bob

 

[ears]

I have a 3 cylinder compresssor which is very quite (comparatively), but otherwise, I work alone!




RAY is right. As was said later, it's due to the mass. If someone (OCG - got a few hours?) has some time, there's an easy way to put this whole Copper/Black Pipe thing to rest. Run an equivalent length of each pipe off the same compressor with a filter at the end of each run. Work them out for a few hours and test the exude. Amount of water, rust, sediment, etc., can all be measured. Case would be closed. Aeny takers?bm?? You'd be a hero among GJ members!! Unless you ran your mouth for the pipe that looses.

http://www.engineeringtoolbox.com/thermal-conductivity-d_429.html

Here is your sticky. Read up on thermal conductivity, it is simple physics no experiments necessary.

The greater the mass the worse the heat transfer. Copper is vastly more efficient at transfering heat than black pipe.

 

[slowtwitch]

When my old Kellogg died, I went hunting for a compressor head and motor. I found a really nice 5hp champion head. I replaced all the valve gaskets and cleaned it up. The 5hp Baldor motor came from a craigslist listing. Total cost $210, in parts and paint

pete

 

[FFPL]

Here's a few pics of mine. Eaton 7.5hp with air dryer and infinity aluminum air lines. Compressor is really quiet. I've been using the continuous run when blasting for any length of time.

water outlets from air dryer, tank, and coalescing filter which are fed into a manifold and outside

 

[ket-tek]

FFPL - WOW! thanks for the pics, that's a great install!

And those airlines are very cool. I see the infinity manufacture site, but have you seen any online sites that sell that piping?

 

[FFPL]

FFPL - WOW! thanks for the pics, that's a great install!

And those airlines are very cool. I see the infinity manufacture site, but have you seen any online sites that sell that piping?

I bought it from pattons inc http://www.pattonsinc.com/piping/piping.html

I did about 200ft of aluminum pipe with 8 outlets and mounted a 100ft reelcraft next to my lift which has a prevost safety coupler

 

[krooser]

When my old Kellogg died, I went hunting for a compressor head and motor. I found a really nice 5hp champion head. I replaced all the valve gaskets and cleaned it up. The 5hp Baldor motor came from a craigslist listing. Total cost $210, in parts and paint

pete

That's the way to go... anybody can whip out theplastic but you got a great compressor for chump change...

 

[KCarGuy]

Slowtwitch, I thought that I recognized that Heavy A** Pump Pulley...I have a 1954 Kellogg American. Completely Rebuilt it a year or so ago.
I love my Beast...Look at the Difference in Motor Sizes. Mine weighs as much as a Volkswagon.

 

[bmwpower]

water outlets from air dryer, tank, and coalescing filter which are fed into a manifold and outside

FFPL,
We need more info on that garage and piping. It looks really nice. Approx cost per length?

As for the drain lines, how do you overcome freezing where the manifold exist the building?

 

[FFPL]

FFPL,
We need more info on that garage and piping. It looks really nice. Approx cost per length?

As for the drain lines, how do you overcome freezing where the manifold exist the building?

16ft lengths are about $25. It's the connectors that are expensive (can't remember the cost but I can look it up for you); they are all nickel plated brass and are of a very nice quality. It goes together easily and no leaks, and looks good. I made up the aluminum plates that the outlets mount on (6x6 for a single outlet; 6x8 for a double).

The manifold won't freeze as it's in a heated area. I set the drain to turn on long enough to hopefully clear the PVC of any water. No probs so far.

 

[e-tek]

An oil lubed one...duh. I thought eveyone knew that. How long have you been here?

Got me again....have a ways to go I guess before I'm here long enough to read your mind.....

 

[ket-tek]

16ft lengths are about $25.

Wow, that's not bad at all. Much cheaper than I though it would be. What diameter did you use?

 

[heathy]

Any thoughts on this compressor? It's only $40 more than the Craftsman 110v model I was looking at and it's almost twice the CFM. I want to run it off the dryer outlet.

http://www.lowes.com/lowes/lkn?action=productDetail&productId=102750-1126-VT6275

Thanks

 

[FFPL]

Wow, that's not bad at all. Much cheaper than I though it would be. What diameter did you use?

the fittings more than make up for this. I spend as much on elbows as the pipe!
It's 20mm (3/4") pipe.

 

[Monte]

My former employer gave me those 2 (defective) screw compressors for free.
Kaeser SX4 and Atlas Copco GA15. With a new pressure switch the Kaeser unit should (hopefully) be working again properly and will be installed in my garage.

 

[bmwpower]

my former employer gave me those 2 (defective) screw compressors for free.
Kaeser sx4 and atlas copco ga15. With a new pressure switch the kaeser unit should (hopefully) be working again properly and will be installed in my garage.

2????????????????

you ****