Replace old tank with newer/smaller tank?

I have a old mw 20 gallon air compressor that developed a pin hole leak. I obtained a newer campbell hausfeld 13 gallon air compressor that had a broken pump. Can I replace the mw tank with the smaller new tank?

Bill says...

Sure you can. Just expect your air compressor to cycle more frequently, and make sure you don't forget about the compressor DUTY CYCLE if yours is not continuous run.



Click here to post comments

Add your own question or comment. It's easy to do. How? Simply click here to return to Air Tank Information.

Upgrading a 2 gallon tank to a 4 or 5 gallon tank ...

by Rick

Hi Bill,

Is there any advantage to adding a 2 or 2.5 gallon tank to my existing 2 gallon tank VS swapping it out for a 5 gallon single? I recently replaced air horns and they require much more of a reserve. Thanks again - Rick

Bill says...

Rick, if your horn needs more reserve, then the larger tank will provide that.

The compressed air doesn't care if it flows from one tank or two, as long as there aren't any flow restrictions that would slow the passage of the compressed air.

Adding a tank versus replacing a tank may make the difference for you. Which is easier for you to do?

See "Add A Tank" from the sitemap for more info.



Click here to post comments

Add your own question or comment. It's easy to do. How? Simply click here to return to Air Tank Information.

Connecting an extra tank not working correctly?

by stringpickin

Why is this way of connecting an extra tank not working correctly?

I acquired a 35 gallon tank. I plumbed it to my compressor. I did it before reading your instructions. But I still fail to see why this is not working correctly..

What I did.. I have a portercable 1 1/2hp compressor. It is the type with two 2 1/2 gallon tanks stacked one above the other..

Where the air comes out of the top tank to the on/off valve-swith. I put T inbetween the tank and the valve/regulator and put a quick connect on the middle T and let the air run from the top tank to the valve/switch just as before. This way I only had to plug one hose into the extra tank. The air would fill in from that point and also feed back from the tank to that point(before the valve and switch.

I assumed that the valve and shut off would see this as only a larger tank.. But apparently something is wrong because it will run until the motor throws the breaker on my breaker. The compressor has run this long and longer many times before and never threw the breaker.

So is it doing this because the bypass tube that goes from the valve to the bottom tank inlet(where the air is put into the units own bottom tank) is not affecting or considering the extra tank volume or pressure?

I can plumb the unit the way you described, but I thought this would be much easier. Require one hose, and I would not have to replumb a connector bay which my compressor feeds.(a 3 quick connector panel.. Thank you for your time and help..

It's a bit hard to visualize, but from what i interpret, what you have plumbed should work.

Now your compressor runs until the breaker pops, suggesting that the motor is overheating.

Before the motor stops on overload, what's happening to the pressure in your tanks? Is the pressure in the whole system going up, or is the pressure on the tank gauge not moving, or not moving much.

It sounds to me like you are exceeding the duty cycle of your compressor, hence it going off on thermal overload (at least I think it's thermal overload). Check the sitemap for duty cycle if you want more info on that.

A 35 gallon tank is a big tank, and your little compressor trying to fill that tank too might be the issue. However, if it is going off on duty cycle overload, then I'm thinking you have a leak somewhere, the compressor can't catch up, and will run until it overloads.



Click here to post comments

Add your own question or comment. It's easy to do. How? Simply click here to return to Air Tank Information.

Adding an air tank to my compressor

by Ronald Norris
(Altoona, Pa.)

I was watching some vids on YouTube and it showed some people adding an air tank to a compressor. What they did was take off the pressure relief valve added a T put back on the relief valve right side up screwed in a air hose to the T and off they went. Is this safe and the right way to do it? Seems to me that I read somewhere on your site that you needed to add the fitting before the air got to this point. I can't remember what the part was called, but will this set-up that they show work?
As usual THANKS
Hi Ron...

I didn't see the video you refer to about adding another tank to an air compressor, so I will not comment on that.

The compressed air doesn't care where it is stored. By that, I mean, that if the compressor is running, air is being pumped into a tank. If that tank is expanded by adding another, the air fills both.

The compressor will run longer each time as it has to fill a larger reservoir now, at that might bring some issues about duty cycle.

You can add a reservoir tank anywhere along an air main, for example. Adding a tank at the other end of a manufacturing plant helps ensure that air using applications farther from the air compressor can have enough compressed air to do the work they are intended to.

To simplify, imagine the air line from the compressor tank as a single line. On the left you have the compressor tank. Somewhere in the middle of the line you will have a pressure switch that senses the pressure in the tank to turn the compressor on and off. To the right of, or part of the same plumbing, you will have an air regulator and perhaps, just before that, you will have an air filter.

At the right end of the line you will have the discharge coupler into which you plug your air line to your air tools. The discharge coupler acts a sort of valve, keeping the air in the air line from the tank until such time as someone plugs a connector into it to open the "valve".

If you want to add a tank to this setup, the logical place to put the tee to the new tank is before the regulator. You do not want to put the new tank after the regulator.

So, where is it easy for you to put a tee in that single line, before the regulator, to plumb an air line into the new tank so the compressor can fill it too? That's where you put it.

Also, if you need to run a hose from the tee to the new tank to make it easier to place the tank in an out of the way space, no problem. Go bigger rather than smaller in hose size. No point in adding a flow restriction if it isn't necessary.

Don't forget, the new tank will have to be drained regularly too.



Click here to post comments

Add your own question or comment. It's easy to do. How? Simply click here to return to Air Tank Information.