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  1. #1

    Default Four Way Hydraulic Valve

    What's the average going price for a four way valve to fit a kubota BX2200?

    I priced one this morning for $525.00, just curious to see how they run elsewhere.

  2. #2
    Veteran Member
    Join Date
    Dec 2002
    Posts
    1,070
    Location
    Western Washington
    Tractor
    5300 JD 4X4

    Default Re: Four Way Hydraulic Valve

    four way valve? Do you mean four functions with one lever?

  3. #3

    Default Re: Four Way Hydraulic Valve

    yep...commonly known here as a four way.

  4. #4
    Veteran Member
    Join Date
    Dec 2002
    Posts
    1,070
    Location
    Western Washington
    Tractor
    5300 JD 4X4

    Default Re: Four Way Hydraulic Valve

    Generally it is just an add on to the spools. Most of them get pretty sloppy after much use. At least that has been my experience on the older machines, 70-80"s I have over 2000hrs on my current rig and has cable that comes from the spools to the joystick. It is still pretty tight, not much steel on steel to wear.

  5. #5

    Join Date
    Apr 2002
    Posts
    143
    Location
    central indiana
    Tractor
    BX22

    Default Re: Four Way Hydraulic Valve

    I recently traded my 3 position for the 4 on my BX.
    The sticker price was around $550 for the 4 way.
    Cost me about 70 bucks to trade.

    By the way, the 4 position valve kit's P/N is BX2014, 3 pos is BX2013.

  6. #6
    Member
    Join Date
    Dec 2001
    Posts
    38
    Location
    North Jackson Ohio
    Tractor
    Kubota L3540

    Default Re: Four Way Hydraulic Valve

    Where did you find a place that would trade? How long have you owned your machine?

    Thanks
    Jack

  7. #7
    Veteran Member
    Join Date
    Jun 2002
    Posts
    1,129
    Location
    Oklahoma City
    Tractor
    Deere 855 (24hp/19@PTO)

    Default Re: Four Way Hydraulic Valve

    Pardon me if this is a dumb question. I am still trying to figure this stuff out. Isn't a 4way valve used to control extension and retraction (2 functions) of two cylinders or two sets of cylinders ie like for a loader with raise, lower and dump, rollback being the 4 functions?

    If that is true, what is a 3way valve used for?

    OkieG

  8. #8

    Join Date
    Apr 2002
    Posts
    143
    Location
    central indiana
    Tractor
    BX22

    Default Re: Four Way Hydraulic Valve

    I bought my BX22 with the 3 way, and about 6 months later I decided I wanted the front blade which has hydraulic lift & angling - this requires the 4 way valve. The dealer that I bought the tractor from was willing to do a trade for just the price difference.

    As for the difference between the 3 way & 4 way, here is an excellent write-up that kubmech did in a previous post:
    The 3 position valve and the 4 position valve, both have what is known as a regenerative circuit built into the bucket dump circuit.

    First let me explain what "regen" is and why.

    When dumping a loaded bucket (with a good old fashioned loader control valve) the weight of the material in the bucket tends to pull the cylinders down faster than the hyd. fluid can fill the other side of the bucket cylinders. Therefore, an air pocket will develop in the cylinder causing the bucket to be a little "floppy" unless held against relief for a few seconds at the end of the dump cycle. Which creates an extra step if you want to back-drag, etc.

    To solve this problem we now add a regenerative (regen) circuit into the dump function of the loader control valve.

    What is "regen"? The dump function of the loader control valve applies hyd. "power" to both sides of the bucket cylinders at the same time. But Kubmech, how the heck is that going to work? Wont the cylinder just lock up and not move? No, because on one side of the cylinder the rod itself takes up space, decreasing the volume of the cylinder, on the other side of the cylinder piston there is, no rod, creating more volume. PSI=pounds per square inch, the more volume the more square inches to apply pounds, get it? O.K. so the back side of the cylinder overcomes the front side of the cyl. due to more volume and at the same time does not allow an air pocket to develop becuase of the added resistence of "hyd. power" to the front side of the cyl. allowing the cylinder to "stay tight" for subsequent operations. And as an added bonus it tends to dump faster due to the higher amount of flow/pressure to perform this operation. (Hence the "fast dump" mode the salesmen love to tell you about) In actuality the "fast dump"
    mode is just derivative of the regen circuit.

    Soooo..... What's the difference between 3-pos. and 4-pos. valves, besides about 35 bucks.

    The 3-pos. valve has regen in the dump mode period. The problem with regen is if you want to add, say a snow plow, with power angle running off of the loader control valve, the power angle works off of single acting cylinders. With "hyd. power" being supplied to both sides of the cylinder, you will only be able to angle in one direction and that's it. (back to the whole volume-vs-psi thing again).

    The 4-pos. valve has a detented position. When moving the control lever to the right, to dump (or power angle right in the case of the plow) if you choose the first detented position this is the non-regen position and will work just like the good old fashion loader control valve. If you apply a little more pressure on the control lever you will push past the detented position and move into the regen position. Thus, if you have the 4-pos. valve and want to avoid the floppy bucket syndrome you have to push full right to engage regen.

    So the bottom line is; both the newer 3-pos. and 4-pos valves have the "fast dump" option. The difference is, do you want to add options to your front loader without having to add an aux valve to you're tractor or not?

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