Extra compressor tank.

[steve.h]

Ok so im still new at all this... I have a small 2hp 25ltr compressor, I would like to add more storage to it to save the constant running when im using my tools as we as hopefully being able to run slightly higher power tools due to the extra volume of storage.
I have been searching for a while for an old reciever tank, but I just dont seem to come across then, trouble is where the truck only does about 18 to the gallon I cant travel too far.
So I have been thinking, can I use a 19kg - 47kg propane/butane cylinder, I was reading that they are tested to 30 bar, so that is ok, what I really need to know is what do I have to do to make it fit, can I use the existing valve/outlet and connect it to my compressor ? or do I need another type of connector ? and what type of pipe can I use, could I use airline hose or would it need to be copper pipe ? I am guessing that the pressure switch etc would cover the extra tank as the two are connected, is this right ?
I can get hold of a 47kg bottle easier than a compressor tank, and I am guessing the 47kg will hold about 100ltrs of air, so this would boost my systen loads.
All your experienced advice is always appreciated.
cheers.
steve.

 

[rtbcomp]

The red propane tanks are the way to go, they have a standard BSP thread in the top of the bottle, I forget the actual size.

The blue butane ones have a non-standard thread and you have to modify the valve to make a connection.

Mount the tank upside down so any accumulated water is expelled by the exiting air.

I've used nylon air hose to connect mine directly to the compressor's receiver, this way the existing pressure switch covers both tanks.

The 47 Kg tank holds about 90 litres as far as I can tell.

 

[steve.h]

nice one, thats what I was hoping to hear, gypsy camp here I come.... might get 2 :-)

 

[nodeward]

i have an extra tank that i have been planning to hook up to my compressor but i have been al little concerned that the little compressor may struggle to fill such a big volume and i might end up, well..... ****ing it

 

[rtbcomp]

Should add, purge the cylinder with water, you don't want a compressed mixture of propane and air.

 

[cooper956]

can i just ask how would you conect a extra tank to the exsisting compresser i have chance of a old compresor tank and ws thinking of useing it as a extra tank and maybe being able to isolate it from the main tank when its full and maybe then useing it to take air to tyres ect away from the main fixed compresser?

 

[rtbcomp]

Basically just connect a pipe from the original tank to the new one.

Make the connection before the regulator on the original tank.

 

[MG David]

Cooper956, most tanks have extra tapped holes in them with blanking plugs. You can use one of those to connect the extra tank.