DIYbanter - View Single Post - Valve to fill additional compressed air tank

Ignoramus31823

On 2013-12-07, wrote:
On Sat, 07 Dec 2013 07:39:52 -0600, Ignoramus5722
wrote:

On 2013-12-07, Karl Townsend wrote:

i

If you find a good solution, please let me know. I bring a tractor PTO
compressor out to the field every day. I could reduce the tractor RPM
(save fuel) if such an accumulator could be designed.

I've thought of adding a couple old 100 lb. LP bottles but don't want
to wait for the whole system to build pressure before starting. The
shears need 100 psi to work so you can't start until almost to cutout
pressure.

Karl

Karl, I am still thinking. Yesterday I thought to go with what Lloyd
recommended, a flow control valve. Then I realized that it is not as
good as I want. There is an energy loss and also the system will not
come up to pressure fast.

Nw I am leaning towards a system with a check valve for air outflow,
and a pressure switch controlled solenoid valve for filling.

i
If a valve opens and the flow is large enough through the valve then
suddenly there will be a pressure drop in the whole system. The drop
depends on how much pressure is in the extra tank when the valve opens
and how big it is in relation the the regular tank.
Eric

Right. But I can deal with that. It is not a big factor.

i