Air receivers

[WilliamInOz]

Hi all,
just wondering if anyone has got an air receiver tank that can take 300-400 psi WP.

Cheers, Will

[Bob Gibson]

Hi William, why not use a CNG "compressed naual gas" bottle from a car! they are normaly 90 liter bottles
and can with stand working presure of 3600 psi,
just a thought. Bob

[Inter Bloke]

Bob, Are you shure about that figure ?
If I remember rightly LPG houshold cylinders are tested to 450 PSI and I would assume vehicle "LPG" tanks are tested to the same, I assumed Natural gas tanks would be simmilar.
BOC cylinders for various gasses are tested to some very high pressures though !

[Trevor A Cole]

Bob is correct about CNG tank pressures and Interbloke is correct about LPG tank pressures. The important difference is the difference between CNG and LPG.
Why do you want an air receiver at such a high pressure?

[WilliamInOz]

Trevor,
we need a pressure that high for starting a large single cylinder ruston. 180psi isnt enough, and was told that 300-400 psi for the air start is what was used to start them.

Cheers, Will

[Trevor A Cole]

Then a CNG tank will do admirably. Don't weld it. If you want authentic looking rivets then glue them on!

[Bob Gibson]

The test pressure is 450 psi for the LPG cylnders, BUT! not the working pressure, normaly the test pressure is twice the working pressure.You can use a CNG tank, just change the relief valve to one slightly above your working pressure. regards Bob

[John Newman, Jr.]

How much volume do you need? A 70 Cu.Ft. SCUBA tank is routinely filled to about 2500 psi.

[WilliamInOz]

250-300 ltrs Min

[Bob Gibson]

I would couple three or four 90 liter tanks to a common manifold, its volume! and pressure you need.The pipe work, valves and fittings should be taken into consideration to.
regards Bob

[Rod E]

Hi Will,
My Ruston Book Says that 200 PSI is the pressure required to start a HR6 40HP .Is does need pipe line of 1" get the flow without restrictions .
Regards Rod

[WilliamInOz]

Rod this ones a tad larger

Cheers, Will

[Rod E]

Hi Will,
How much bigger ? HR2 to HR 10 single and coupled all use 200 PSI .
Rod

[WilliamInOz]

9hr rod its a pearler