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Open Roads Forum  >  Truck Campers

 > Ping tanks revisited

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BoosterBob

Madison, AL

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Posted: 11/01/11 11:40am Link  |  Print  |  Notify Moderator

After reading how the paint ball people use disposable propane bottles for air tanks, I tried using the short, squat 1-pound bottles for air bag ping tanks. Very satisfied with the results for not much effort and very low cost. 4-inch muffler clamps did the mounting with rubber tubing for cushions. Heat shield on the right side clamp due to exhaust pipe. Running at 35 psi, this finally tamed the wild ride on my '96 F350 and the hula doll stays on the dash instead of leaping off into space.

BB

Left side clamp and U-bolt
[image]

[image]

[image]

Right side clamp reversed, flat stock welded to U-bolt for existing frame holes
[image]

JoeChiOhki

Sauvie Island, OR

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Posted: 11/01/11 11:44am Link  |  Print  |  Notify Moderator

How did you overcome the valve on the top of the old propane cylinders?


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BoosterBob

Madison, AL

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Posted: 11/01/11 12:33pm Link  |  Print  |  Notify Moderator

Both the outlet and vent valve cores are simple schrader-type, similar to tire valve cores. Regular tire valve core removers may be too short to reach down into the hole so a longer one may be made from a smooth rod or bolt of the appropriate size. Cut a slot in the end and unscrew the core, saving the one to the vent just to the side of the outlet since it will be reinstalled. Use compressed air to blow out the residual propane smell marker. Do the drilling/tapping with the outlet pointing down to keep chips out. It goes without saying the bottle must be fully emptied and purged before doing any of this.

BB

puravidadon

Kelowna, BC

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Posted: 11/01/11 01:40pm Link  |  Print  |  Notify Moderator

What are ping tanks?

AnEv942

CA

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Posted: 11/01/11 02:09pm Link  |  Print  |  Notify Moderator

If you google ping tank youll find a lot of info/installs, even here on RV, including msiminoff's recent install.
You can even purchase systems..(or complete air suspension linkmfg.com some cool stuff). Basically increasing the volumn of air.


But as to your install Bob- did you just tee into bag inlet?. You mentioned running at 35psi, is this the same more/less than used previoulsy?


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AITG

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Posted: 11/01/11 03:05pm Link  |  Print  |  Notify Moderator

You need to be aware of the fact that the inside of these disposable tanks is not necessarily rust resistant. If the tank holds propane there is no water in it and no need to coat the steel.
OTOH, compressed air contains water.

People used to grab empty Freon cylinders to use as air pigs. They would rust badly.


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JoeChiOhki

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Posted: 11/01/11 03:56pm Link  |  Print  |  Notify Moderator

AITG wrote:

You need to be aware of the fact that the inside of these disposable tanks is not necessarily rust resistant. If the tank holds propane there is no water in it and no need to coat the steel.
OTOH, compressed air contains water.

People used to grab empty Freon cylinders to use as air pigs. They would rust badly.


Sounds like pouring some POR-15 inside and sloshing it around for a while till it was good and coated, then pouring out the extra would take care of that problem [emoticon].

mapguy

Puget Sound

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Posted: 11/01/11 04:32pm Link  |  Print  |  Notify Moderator

Another tank option is aluminum/ss from somebody like Bimba.

http://www.bimba.com/Products/RelatedProducts/AirReservoirs/

BoosterBob

Madison, AL

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Posted: 11/01/11 05:58pm Link  |  Print  |  Notify Moderator

I considered the corrosion issue and tried some solvent-based primer in one of the tanks. After 6 months, it's still off-gassing so if I have to replace a tank, I'll use an epoxy coating or a tank like the Bimba unit. Sure like the price of those disposable bottles, though.

JoeChiOhki

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Posted: 11/01/11 05:55pm Link  |  Print  |  Notify Moderator

mapguy wrote:

Another tank option is aluminum/ss from somebody like Bimba.

http://www.bimba.com/Products/RelatedProducts/AirReservoirs/


Do they sell cylinders for $5 each? [emoticon].

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