Loader Valve Recommendations?

[K5lwq]

Thanks everyone for the help! I have been researching different valves for a month now and see a few options from different manufacturers. The problem is the spec sheets I have found are not always clear. For instance, the Bucher sheet is not clear if you can get the joystick on the float spool. That is what he is having to research.

Another interesting thing is Bucher says their internal leakage is 6 to 12 cc's per minute. That is a wide range and fairly high. However, they say lower values are available upon request but you have to speak to one of their salespeople.

The Walvoil SD5 has everything I am looking for and would order if I could. I contacted two different salespeople and drove to one location in Dallas and still have no information on how to order one. It just seems odd to me.

Maybe I will hear back on the Bucher valve in a couple of days. If not, I will follow up with them on Friday.

 

[Fallon]

Thanks everyone for the help! I have been researching different valves for a month now and see a few options from different manufacturers. The problem is the spec sheets I have found are not always clear. For instance, the Bucher sheet is not clear if you can get the joystick on the float spool. That is what he is having to research.

Another interesting thing is Bucher says their internal leakage is 6 to 12 cc's per minute. That is a wide range and fairly high. However, they say lower values are available upon request but you have to speak to one of their salespeople.

The Walvoil SD5 has everything I am looking for and would order if I could. I contacted two different salespeople and drove to one location in Dallas and still have no information on how to order one. It just seems odd to me.

Maybe I will hear back on the Bucher valve in a couple of days. If not, I will follow up with them on Friday.

Not sure which Bucher valve you are talking about, but my L3200 install had 2 float valves on a joystick & it came from Fitrite. I don't think the 3rd had any detents or anything, but I didn't use that one much.

https://www.tractorbynet.com/forums/hydraulics/295816-kubota-l3200-tnt-3rd-function.html

 

[K5lwq]

This is a PDF of the valve I considering. I will be mounting it ports up and the float spool I think I need is the WW. I believe that will give me float when I push the handle toward the spool. If you read the foot notes, it states you must use positioner 240 and lever L192. The joystick is L218. Maybe you or someone smarter than me can look at this and tell me if I am thinking wrong.

View attachment Bucher hdm11s_200-p-Joystick Float.pdf

 

[K5lwq]

I did follow up with Trausch yesterday and they still have not heard back from Bucher. Seems I am not the only one that has a hard time getting information from valve manufactures.

 

[MtnViewRanch]

This is a PDF of the valve I considering. I will be mounting it ports up and the float spool I think I need is the WW. I believe that will give me float when I push the handle toward the spool. If you read the foot notes, it states you must use positioner 240 and lever L192. The joystick is L218. Maybe you or someone smarter than me can look at this and tell me if I am thinking wrong.

View attachment 565441

The actual spool itself must be pushed into the valve body to go into the float position. So when you push the lever towards the valve body, that pulls the spool out.

As far as manufacturers not getting back to you. Any manufacturer that is set up to deal in volume looses money talking to anyone that only wants 1 or 2 items. Doesn't matter if you buy the item or not, they have lost $$$ simply by talking to you. Just how it is.

Why do you need a mono block valve, why not use a stacking valve? Size related I'm guessing. :confused3:

 

[K5lwq]

The actual spool itself must be pushed into the valve body to go into the float position. So when you push the lever towards the valve body, that pulls the spool out.

As far as manufacturers not getting back to you. Any manufacturer that is set up to deal in volume looses money talking to anyone that only wants 1 or 2 items. Doesn't matter if you buy the item or not, they have lost $$$ simply by talking to you. Just how it is.

Why do you need a mono block valve, why not use a stacking valve? Size related I'm guessing. :confused3:

Size is the limiting factor. I am not saying I can't find a way to make a stack valve work, but a small mono block would be a easy replacement.

Are you saying that the spool I am looking at must be pushed into the valve body to go into float? This is where I get confused. There are two float options, Z spool and WW spool. I want float to be in the direction of lowering the loader, don't I? At least on all the loaders I have used this is the case.

 

[MtnViewRanch]

I am not familiar with what a Z spool or a WW spool are.

Yes you want the float to be at the end of lowering the loader throw. But the valve may have to be turned 180* to get the movement of the lever in the correct direction to be able to achieve that.

 

[oldnslo]

Looks like the Z spool is standard float configuration since the WW requires a special body.

Also looks like on the valve the joystick pivot is below the spool so pushing the lever would push the into the valve body.

Just have to connect the hoses to the correct ports to get the direction of movement required.

 

[K5lwq]

Looks like the Z spool is standard float configuration since the WW requires a special body.

Also looks like on the valve the joystick pivot is below the spool so pushing the lever would push the into the valve body.

Just have to connect the hoses to the correct ports to get the direction of movement required.

I agree the Z spool is the standard. However, if I am understanding the schematic correctly, float is achieved by pulling the spool all the way out. So pushing in would be position 1, flow from work port A to B. Center would be no flow to work ports. Pulling out to position 2, flow would be from B to A. And pulling all the way out would be fourth position float. If this is correct, I could not achieve float by pushing the lever toward the valve. Although I could swap the hoses, I would be pulling the lever to lower and go into float.

If I use the WW spool then 4th position would be when spool is pushed all the way in which allows for the lever orientation to be correct. Also, no check valve is available on the Z spool but is on the WW spool.

Am I understanding this correctly?

 

[oldnslo]

K5,
Like you say the data sheet for the Bucher valves is confusing but I believe the standard body has the load check option. This is based on the fact that all of the schematics in showing multiple spools have the load checks in them. Adding float does not change the body configuration in most cases so I suspect the Z spool would have the load check. Agree that the individual spool schematic does not show this but neither does the A spool which is the 3 position variant of the Z spool

Yes you are correct in the the WW would have you moving the joystick the wrong way to lower.