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Posted: Mar 11, 2007 12:07 AM
Air and Fluid Plumbing
Anyone have hard plumbed air and fluid lines? Tired of tripping over the rubber fluid and air hoses. I was wondering if anyone here has copper or pipe (black iron or galvanized) lines in their trailers? Seems they would be more reliable but I am concerned about the stress of having rigid lines in the trailer bouncing down the road. Opinions?

Tim
Granite State Spray Foam Co.
Posted: Mar 11, 2007 06:45 AM
yes,,,
air is 1" copper
fluids thru 1" black pipe with hose whip to attach to xfer pumps and proportioner
all electric in conduit
Gerry Wagoner
Posted: Mar 14, 2007 12:55 PM
Air is .75" copper.

Fluid is 1" galv.


olger
Posted: Mar 14, 2007 02:41 PM
Do you have them plumbed right into the proportioner with the rigid pipe, or do you have a short whip hose from the proportioner to the pipe?

Thanks, Tim
Granite State Spray Foam Co.
Circle-D
Posted: Mar 14, 2007 08:59 PM
Tim, Being a pipefitter/welder for 23 years would lead me to say install a flexible connection between the proportioner and the hard pipe to absorb any road vibration with out putting a strain on the equipment. Flex hoses will also need to go to and from the transfer pumps. I would also put quick disconnects on the transfer pump for fast and easy hose removal when needed. I am planning to hard pipe my trailer when it arrives in early April.
Posted: Mar 14, 2007 09:12 PM
Thanks Guys,

I hadn't thought of the qd's (quick disconnects) for the fluid lines. I can't imagine needing them, but I suppose they might be useful. I always see leaks on hydraulic lines of heavy equipment so I have viewed them as a weak link. I have the qd's on the air hoses for the transfer pumps and they have been quite useful.

I think the hard pipe is the way to go to get the plumbing up and out of the way. My processing room looks like a pile of spaghetti with all the red rubber hoses tangled up in front of the proportioner.

Tim
Granite State Spray Foam Co.
SprayFoamSupply.com
Posted: Mar 14, 2007 10:04 PM
I wouldn't put any quick disconnects on the Fluid lines, you are asking for trouble with the ISO.

George
Gerry Wagoner
Posted: Mar 15, 2007 10:04 AM
Our old rig had black pipe. The resin caused a LOT of rusting inside the pipe interior.

That's why we used galvanized on subsequent rigs.

`G
philip mullins
Posted: Mar 15, 2007 06:58 PM
why not pvc?
Posted: Mar 15, 2007 07:14 PM
Standard schedule 40 PVC is not rated for high pressure fluid or air. And can be brittle in the cold.

Tim
Granite State Spray Foam Co.

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