Making an Air Compressor tank/receiver

[humphshumphs]

I have a small compressor (with a 6 litre tank on it) and was wondering if anyone had any ideas on how I can make a larger air receiver.

I had thought about using an old Propane tank but wasn't sure.

Any ideas would be great.

[Click4]

On ebay you can sometimes find proper air receivers.

Wouldn't use anything other than an appropriately rated reciever tank because you don't know the metal thickness, and if it explodes it will go off like a bomb and potentially seriously kill or injure somebody.

[humphshumphs]

Originally Posted by Click4

On ebay you can sometimes find proper air receivers.

Wouldn't use anything other than an appropriately rated reciever tank because you don't know the metal thickness, and if it explodes it will go off like a bomb and potentially seriously kill or injure somebody.

I know that they come up on the bay sometimes, but are normally hugely expensive. I know that a propane tank will handle the pressure (I only ever run the compressor to about 90-100psi).

Just after ideas really..... But will keep an eye on the bay.

[rrobson]

Any large gas bottle will easily handle the pressures of a compressor.
You'd be wasting your time if you went any smaller than the large 47kg bottles because anything smaller wouldn't hold a worthwhile amount if air.

[humphshumphs]

Originally Posted by rrobson

Any large gas bottle will easily handle the pressures of a compressor.
You'd be wasting your time if you went any smaller than the large 47kg bottles because anything smaller wouldn't hold a worthwhile amount if air.

I was thinking of using a 19kg bottle as want to make it a vertical compressor due to lack of space for a horizontal one. If I use a 47kg bottle then it would be too tall.

[rrobson]

I see what you mean. 19kg would still give a decent amount of air. Only thing I would say is if its a small low power compressor (which I would be with a 6l receiver) you may have trouble maintaining 100psi.

You would also want to install some sort of safety release valve which will be difficult to do on the bottle itself because you've got no way of getting inside it.
You'd also have to do some plumbing to get inlet and outlets from the bottle as obviously its only got one hole in it.

[humphshumphs]

My thoughts are to make up a bracket that holds the existing compressor and tank on top of the new receiver, and then using a short hose connect from the quick release on the compressor to a similar fitting on the new tank and have another one for plugging in the air tools too.

If I can get hold of a 1/4" BSP tap I should be able to drill and tap 3 holes (or two if I can get the correct adapter for original gas fitting) which will allow the fitting of 2 quick connect fittings and more importantly a pressure release value for safety.

[NigelOBB]

A mate got a broken 3phase compressor give.. Uses his 50litre clarke one to fill the tank.. Works quite well

[hinged_bap]

any compressed air tank also ideally needs a drain c-o-c-k. I think compressed air holds more moisture than air at atmospheric pressure because what comes out is quite noticeable.

[humphshumphs]

Originally Posted by hinged_bap

any compressed air tank also ideally needs a drain c-o-c-k. I think compressed air holds more moisture than air at atmospheric pressure because what comes out is quite noticeable.

Ahh yes, forgot that, so would need to add one of the those too