Hydraulic Valve Sizing Question

[Gordon Gould]

My L3010 has a 7 GPM hydraulic capability. If I was going to choose between a 8 GPM max or 20 GPM max single spool dual acting valve to control my grapple would one be better choice than the other? Independent of size and cost. Thanks.

 

[kennyd]

It does not matter as long as the valve is rated equal to or greater than the pump output.
I would choose the 8gpm unit because it is probably physically smaller and easier to mount than the 20gpm valve.

 

[AKKAMAAN]

The 20 GPM valve might also not respond so well on "feathering".....feathering works better if the valve flow rating corresponds to the pump flow....using a way over sized valve, will be like trying to fill a little shot glass with water using a fire hydrant valve....

 

[Gordon Gould]

Thanks for the info. Sounds like all good reasons to go for the 8 GPM unit.

gg