Caterpillar Diverter Valve

[bindian]

Air Filter back together and raised 2 inches. Now the relief valve line via the filter back to the tank will clear.
hugs, Brandi

 

[bindian]

Does anyone know where I can get 3/4 inch ID tubing? I need two pieces 11 feet long for hard lines going over the boom. I will form it and bend the one end at 45 degrees. They have my local welding shop weld these JIC fittings on the ends...... 6400-08-08 | 1/2" JIC Male x #8 SAE/ORB Male
hugs, Brandi

 

[kennyd]

Brandi,
The same place you bought the diverter from sells it

Product Index | Trausch Dynamics[catalog]=1&data[parent]=400001

 

[BukitCase]

Got me curious when referring to tubing as ID - Kenny your link lists tubing OD (as I'm used to seeing for tubing), plus a minimum order of 200 feet -

Product Index | Trausch Dynamics[catalog]=1&data[grp_id]=4601

Brandi, any special reason you want that large a tubes only to neck down to a -8 (half inch) fitting?

I've bought half and 3/4" OD tubing from my semi-local steel supplier, it came in 20 foot lengths and they had to special order it.

For what you want, you might need to ask for a 24' length (if they're available) or you'd end up with a couple 9' leftovers. Guessing that's STILL cheaper than buying 200 feet though

Knowing your aircraft background, I'm sure you already know about wall thickness vs. pressure - I'm guessing this is for your new thumb?

Sorry, don't mean to have more questions than answers... Steve

Second sorry - their site isn't very friendly, I linked the page I was on and it comes back to the main page - I went to Hydraulics/tubing to get there...

 

[bindian]

I reasoned I could use the JIC/SAE -8 fittings I had and just stick the SAE end into the tubing and weld a bead around it at the hex flats. I really could use smaller ID, if I needed. 3/4 just seemed easier to weld since it would fit in the tube, if I ground the threads down a little.

I have sent out for some quotes and their lengths are around 24 feet. Hopefully I can talk to the owner of my local welding shop today for supplier infor.

I gather around .060 to .080 wall thickness will be right, depending on what material it is. My CAT system is just 2450 psi.
hugs, Brandi

 

[bindian]

Brandi,
The same place you bought the diverter from sells it

Product Index | Trausch Dynamics[catalog]=1&data[parent]=400001

I posted here yesterday, but it didn't come up. I'll call them today.
hugs, Brandi

 

[BukitCase]

"I gather around .060 to .080 wall thickness will be right, depending on what material it is. My CAT system is just 2450 psi."

Yeah, but you may wanna consider staying with 1/2" - 3/4" is half again the cost, needs a thicker wall for same pressure. 1/2" OD should be at least .065" wall, where 3/4" would need to be .083" - plus DHH carries a "swagelok" type fitting that will let you crimp JIC's straight onto hard tubing - you'd need a nut
Convert-A-Flare Tube Nut
A sleeve
Discount Hydraulic Hose

and a JIC fitting (male) - I clamp the fitting in a vise for assembly, but it can also be done in the field. If you've ever used Swagelok tube fittings you can do these. If you decide to go this way, I have a chart showing # of turns for each size I can post. These are strong enough your tubing will split before the fitting gives up... Steve

 

[BukitCase]

Found a couple pix of the flareless JIC's on my 580 (part of a larger project incl. loader QA, grapple, etc) - these are 3/8", don't need speed for anything these extra remotes will control - sorry about the "bundle of snakes", I wanted to keep these as low to the deck as possible

 

[bindian]

"I gather around .060 to .080 wall thickness will be right, depending on what material it is. My CAT system is just 2450 psi."

Yeah, but you may wanna consider staying with 1/2" - 3/4" is half again the cost, needs a thicker wall for same pressure. 1/2" OD should be at least .065" wall, where 3/4" would need to be .083" - plus DHH carries a "swagelok" type fitting that will let you crimp JIC's straight onto hard tubing - you'd need a nut
Convert-A-Flare Tube Nut
A sleeve
Discount Hydraulic Hose

and a JIC fitting (male) - I clamp the fitting in a vise for assembly, but it can also be done in the field. If you've ever used Swagelok tube fittings you can do these. If you decide to go this way, I have a chart showing # of turns for each size I can post. These are strong enough your tubing will split before the fitting gives up... Steve

We just started using Swagelok fittings, for repairs, at the hangar. So far, no one on our crew has did the procedure. I sent you a PM. My mind is on welded fittings, but I am open to the JIC convert a flare
hugs, Brandi

 

[bindian]

Found a couple pix of the flareless JIC's on my 580 (part of a larger project incl. loader QA, grapple, etc) - these are 3/8", don't need speed for anything these extra remotes will control - sorry about the "bundle of snakes", I wanted to keep these as low to the deck as possible

I like your installation with hard lines at the valves. What do the two valves do? Are those lines stainless?

Just price 1/2 inch JIC flareless connectors...........at $23.86 each!
27208-08-08 | 1/2" JIC Male x 1/2" Flareless
But the cost of the items seperate, the way you did it, is total....$$5.26. What is the difference? Or am I missing something?
hugs, Brandi