I was thinking of using it for a single cylinder for up down on a snow plow and a single cylinder for a 3 point. Speed and power might not be a concern?
Wasn't sure if it could be T'd off the power steering or not.
Speed and power sometimes don't sound as important as they are...until you start using your new hydraulics and find out they are painfully slow or under powered. You may be able to use your existing PS pump but I would first find out the specs on it and make sure it is up to snuff. You may just want to hook up an automotive steering pump off the fan belt. Here are a couple of links I used when researching the retrofitting of my tractor with an automotive power steering pump. I think it would work fine for your application. The link to Pirate 4X4 covers power steering specifically but more importantly gives a lot of info on pumps and most of the readers this was written for are using typical agricultural style hydraulic cylinders. In place of an orbital valve you would use a typical lever type control valve and basic plumbing to the cylinder(s). You should be able to gleen enough petinant information from the site to be able to decide if this style pump is what you want to go with. Baums calculators can help you decide what your existing pump or and auto style pump will power and how fast.
Pirate4x4.Com - Extreme Four Wheel Drive
Baum Hydraulics Corp :: Spec Calculator (to figure out some configurations)
I was thinking of using it for a single cylinder for up down on a snow plow and a single cylinder for a 3 point. Speed and power might not be a concern?
Wasn't sure if it could be T'd off the power steering or not.
You need to learn a whole lot more about hydraulics if you are considering "Tee" ing into an open center system, especially a steering system.
this is why I'm asking here.
That in and of itself doesn't work, period.
care to elaborate?
And it is a gigantic safety issue as well, in the absence of a priority valve, to go mucking about within a steering system. After all that is addressed, then you can work on the pressure and flow requirements of what you intend to power.