Caterpillar Diverter Valve

[kennyd]

I heard back, this afternoon, from Motion Industries' Account Rep/Fluid Power Specialist. He recommended this valve............https://www.motionindustries.com/productDetail.jsp?sku=00382745.
I am still a little vague on the subplate. He recommended a subplate with #8 SAE ports. I replied asking if they have a subplate with BSPP ports. BSPP is British pipe. It like our pipe threads, but parallel and not tapered. It isn't metric, like most folks think.
Thanks for all the help and replies.
hugs, Brandi

That is not a "diverter" valve Brandi, have you changed your mind on the setup you want to use? Also, I'll take SAE/ORB over BSPP fittings anyway, unless you get adapters, getting hoses made in a pinch can be a PITA locally.

 

[bindian]

Here is what the rep from www.trauschdynamics.com wrote me today....We can supply just the valve for this. If you need to get an order going please let me know. Below are the components.
7120040 (1) this is valve body only
7120042 (1) this is 24vdc coil, DIN
7120007 (1) this is DIN connector
Selling price: $388.70/each
Lead time is 4-5 working days to ship
Valve rated for 4200 psi, will work great for their application
So this one seems to fit just what I want.
hugs, Brandi

 

[bindian]

That is not a "diverter" valve Brandi, have you changed your mind on the setup you want to use? Also, I'll take SAE/ORB over BSPP fittings anyway, unless you get adapters, getting hoses made in a pinch can be a PITA locally.

Hi Kenny,
I still wasn't sure on that valve. I really didn't want one that needed a subplate. I guess I can go with just about any port fitting. I have to buy whatever fittings I need anyway. Discounthydraulichose.com has all kinds of fitting that convert to BSPP
My local hyd. shop always orders estra hose ends when I need a hose. So a new hose is just a 15 minute trip away during the work week and to 3 on Saturdays.
hugs, Brandi

 

[PILOON]

Heck an electric diverter valve is only a momentary device.
A simple resistor will make the voltage drop from 24 to 12 VDC and since momentary it need not be all that precise.
If you want to be accurate use ohms law to calculate the exact resistance required however a short shot of 24vdc wont hurt a 12v solenoid, in fact it will assure a positive shift.

 

[bindian]

Heck an electric diverter valve is only a momentary device.
A simple resistor will make the voltage drop from 24 to 12 VDC and since momentary it need not be all that precise.
If you want to be accurate use ohms law to calculate the exact resistance required however a short shot of 24vdc wont hurt a 12v solenoid, in fact it will assure a positive shift.

Piloon,
Why add in extra stuff in the circuit, like a resistor, when you can buy the correct valve in the first place?
hugs, Brandi

 

[MHarryE]

Brandi - have you really had good luck using BSPP? Part of my experience at Caterpillar was buying up companies, then "Caterpillarizing" the products. Loose, leaks and 'llectrics are 3 L's used at L - dealer complaints to the mother company because Cat dealers aren't paid warranty labor by the company. If a dealer has to make a arrant you call to fix a leak or repair an electrical connection for example, that was money out of their pocket. Caterpillarizing products from companies we bought partly involved replacing hydraulic connectors with the ones we found to be most leak resistant - SAE ORB (o-ring boss), hoses with ORFS (o-ring face seal), and 4 bolt flange for larger sizes, higher pressures. Electrical involved changing to Deutsch connectors. If I remember right BSPP takes a Dowty seal (bonded rubber inside a washer) and was something our dealers really hated. Then again maybe it was dealers complaining about something different. Being responsible for a team needling to redesign the products from an European manufacturer we purchased, I remember the rather large crew I needed to hire to do the redesign. The other company did not have the purchasing clout of a Caterpillar so the components might be a conglomeration of different type connectors - BSPP, GAZ, NPT, SAE, a dealer's nightmare.

 

[PILOON]

Piloon,
Why add in extra stuff in the circuit, like a resistor, when you can buy the correct valve in the first place?
hugs, Brandi

I merely suggested that option as I seem to recall that either the proper valve was extra costly or not readily available or both, but then I did not re-read all the posts.
In that this is heavy equipment and not an aircraft, weight is not a concern.

 

[bindian]

Brandi - have you really had good luck using BSPP? Part of my experience at Caterpillar was buying up companies, then "Caterpillarizing" the products. Loose, leaks and 'llectrics are 3 L's used at L - dealer complaints to the mother company because Cat dealers aren't paid warranty labor by the company. If a dealer has to make a arrant you call to fix a leak or repair an electrical connection for example, that was money out of their pocket. Caterpillarizing products from companies we bought partly involved replacing hydraulic connectors with the ones we found to be most leak resistant - SAE ORB (o-ring boss), hoses with ORFS (o-ring face seal), and 4 bolt flange for larger sizes, higher pressures. Electrical involved changing to Deutsch connectors. If I remember right BSPP takes a Dowty seal (bonded rubber inside a washer) and was something our dealers really hated. Then again maybe it was dealers complaining about something different. Being responsible for a team needling to redesign the products from an European manufacturer we purchased, I remember the rather large crew I needed to hire to do the redesign. The other company did not have the purchasing clout of a Caterpillar so the components might be a conglomeration of different type connectors - BSPP, GAZ, NPT, SAE, a dealer's nightmare.

MHarryE,
I bought the machine with no leaks at the fittings........and the lines I have replaced have no leaks. BSPP has a flat "washer" like fitting inside. No rubber inside. That's cool you worked at CAT! Bet you have tons of stories.
hugs, Brandi

 

[MHarryE]

MHarryE, I bought the machine with no leaks at the fittings........and the lines I have replaced have no leaks. BSPP has a flat "washer" like fitting inside. No rubber inside. That's cool you worked at CAT! Bet you have tons of stories. hugs, Brandi

Probably the thing I miss the most is that in 44 years of engineering my job changed but a constant was working with the next generation product although my lady and favorite years were getting away from management positions where the people stress nearly put me in an early grave and instead traveling to all corners of the world to help people with major problems because in my years of experience I encountered about every failure mode possible. Having a colonel in South Carolina tell me that these 18 machines are leaving for Iraq Friday and if I haven't found a fix by then, I'm going with them. Sitting in a bar in Spain after disassembling a planetary drive and listening, as well as I could not knowing much Spanish, to the mechanics give their opinions about Italian workmanship - regarding the million pieces we found inside the planetary and if we had Spaniards design and build the drive, there would be no problem but no, we chose Italians. Or breaking for lunch at the dealership in Abu Dhabi and sitting down with a staff of South Africans, Pakistanis, Indians, Egyptians, Palestinians from the West Bank, a Frenchman, A German, and me - and there is no fighting, bickering, animosity toward anyone, just talk about things like a new restaurant that just opened, what did that crew do to dump that 988 loader off a barge and into the Persian Gulf and will we ever get it running again. So many things here I think, been there, done that, have the scars to prove, but why butt in and say anything - see if it blew up the same way it did got me.

 

[bindian]

Probably the thing I miss the most is that in 44 years of engineering my job changed but a constant was working with the next generation product although my lady and favorite years were getting away from management positions where the people stress nearly put me in an early grave and instead traveling to all corners of the world to help people with major problems because in my years of experience I encountered about every failure mode possible. Having a colonel in South Carolina tell me that these 18 machines are leaving for Iraq Friday and if I haven't found a fix by then, I'm going with them. Sitting in a bar in Spain after disassembling a planetary drive and listening, as well as I could not knowing much Spanish, to the mechanics give their opinions about Italian workmanship - regarding the million pieces we found inside the planetary and if we had Spaniards design and build the drive, there would be no problem but no, we chose Italians. Or breaking for lunch at the dealership in Abu Dhabi and sitting down with a staff of South Africans, Pakistanis, Indians, Egyptians, Palestinians from the West Bank, a Frenchman, A German, and me - and there is no fighting, bickering, animosity toward anyone, just talk about things like a new restaurant that just opened, what did that crew do to dump that 988 loader off a barge and into the Persian Gulf and will we ever get it running again. So many things here I think, been there, done that, have the scars to prove, but why butt in and say anything - see if it blew up the same way it did got me.

MHarryE,
Wow, I would like to sit around a fire listening to your stories! Can't help it, I got a mechanical mind instead of a home decorating mind!
Merry Christmas hugs, Brandi

 

[bindian]

Well, it's been long enough. I finally bought a thumb. Gentec HT1440 Hydraulic Excavator Thumb 14"x4" (HT144) - Gentec Equipment

Tomorrow, hopefully this valve, #7120001 from https://www.hydraulicstore.com will arrive. I also bought the 24 volt coil. No worries now of a 12v valve getting ate up by 24 volts!

Weather permitting, I get the thumb welded on tomorrow afternoon.:cool2::dance1::thumbsup::licking:
hugs, Brandi

 

[bindian]

How do you go about mounting a relief valve when it only has one (looks like) 5/32 inch hole through it? It is item number 7107333 from www.hydraulicstore.com It is a Prince RD-1850H relief valve.
hugs, Brandi

 

[BukitCase]

Brandi, your solenoid valve will have 2 mounting holes (not including the 4 "stack" holes for multiple units) - what I would do is figure out where/how that solenoid will mount, then maybe tee off whichever port closes your thumb and mount the RD-1850 on that tee - you'll need to figure out what kind of adapters you need to go from NPTF to BSPP (if that's what you already have on the ex) - those relief valves are usually just hard piped to the rest of the system. I've installed a couple of that model on my 580B for add-ons, and they're fine being held just by piping. I came out of mine with NPTF-JIC's, 'cause that's what 99% of my fittings already were.

It helps A LOT to have a swivel or two on adapters, so you can get the NPTF threads tight and sealed and still point things (like the relief pressure adjust, RD out to tank) the way you need 'em.

HTH... Steve

 

[Xfaxman]

How do you go about mounting a relief valve when it only has one (looks like) 5/32 inch hole through it?

View attachment 501803

It is item number 7107333 from www.hydraulicstore.com It is a Prince RD-1850H relief valve.
hugs, Brandi

If you have to use hose to connect it, use square U bolts to mount it.

 

[bindian]

Brandi, your solenoid valve will have 2 mounting holes (not including the 4 "stack" holes for multiple units) - what I would do is figure out where/how that solenoid will mount, then maybe tee off whichever port closes your thumb and mount the RD-1850 on that tee - you'll need to figure out what kind of adapters you need to go from NPTF to BSPP (if that's what you already have on the ex) - those relief valves are usually just hard piped to the rest of the system. I've installed a couple of that model on my 580B for add-ons, and they're fine being held just by piping. I came out of mine with NPTF-JIC's, 'cause that's what 99% of my fittings already were.

It helps A LOT to have a swivel or two on adapters, so you can get the NPTF threads tight and sealed and still point things (like the relief pressure adjust, RD out to tank) the way you need 'em.

HTH... Steve

Thanks Steve. I guess I will have to do that. I just schooled in aviation, that anything unsupported itself will vibrate and vibrations are bad up there. I'll pipe it straight and make a bracket to fit that one hole, just for grins.
hugs, Brandi

 

[bindian]

If you have to use hose to connect it, use square U bolts to mount it.

That would be great. I was thinking two clamps bent aquare when I went to bed last night. Where can I buy something like this? Guess I can buy some thin steel strip and bed it at work this week. Thanks for the ideas.
hugs, Brandi

 

[Xfaxman]

Any local hardware store or eBay, Amazon and thousands of online hardware stores.

 

[bindian]

Any local hardware store or eBay, Amazon and thousands of online hardware stores.

Thanks. I'll look next time I am there. I bought a 1/8" x 3/4" strap today. I will bend it and try that, bolted down in a "hat" fashion. I'll have to trim the strap to clear the ports.
hugs, Brandi

 

[bindian]

It is going slow here on all the plumbing. Lots of head scratching. I did get the fittings in and reused a Ford fuel pump bracket for a filter mount. I mounted the relief valve directly to the filter assembly and the relief will have 1 inch rubber under the relief. I'll drill and counterbore a hole for a bolt to hold the rubber in place underneath. I'm raising the air filter for the relief line to the tank so the line will go under the air filter outlet duct. I also need to replace the air duct, so I took it off and found this rusted filter outlet. I'm sure these are not cheap, if I can find one, so I will see if my local welding shop can repair the outlet.
hugs, Brandi

 

[bindian]

I trimmed and cleaned the air filter outlet this week. I acquired a muffler shop pipe adapter from a local shop for free. I cut and slotted it to clear the indicator threads and clamped it on with a heavy truck duct clamp. Caterpillar has a new duct coming Monday. I then painted it all CAT yellow, after priming the insides with black rustoleum.

I will add clear silicone RTV to the slots, so no dirt can get sucked in.
hugs, Brandi