gresen valves

augercreek · Jan 30, 2013

I have two Gresen valves,a two spool A6 stamped,a three spool K84. What are they internaly used for? I bought them many years ago and have forgotten the specs. I also have two Vickers pumps that I need the specs for,first one is v10 1s2s 3C20. The second is a V10P 1S7K 1D3D10 140KM.
Oh I just found this site this morning looks to be very useful.
Your brother in Christ Jerry

medic0648 · Jan 30, 2013

Any additional numbers on the valves?

J_J · Jan 30, 2013

augercreek said:
I have two Gresen valves,a two spool A6 stamped,a three spool K84. What are they internaly used for? I bought them many years ago and have forgotten the specs. I also have two Vickers pumps that I need the specs for,first one is v10 1s2s 3C20. The second is a V10P 1S7K 1D3D10 140KM.
Oh I just found this site this morning looks to be very useful.
Your brother in Christ Jerry

You can do some logical testing with air using the IN port.

To test for open center, and with levers in neutral, and no PB, air in the IN port should exit the OUT/return port.

If the valve has a PB port and it has a short plug, air will exit the OUT port.

If there is a PB sleeve installed, then air should only exit the PB port.

If no air exits the OUT port and the PB port is plugged, check to see if the PB port has a closed center plug installed.

To check for float, and air at the IN port, air should come out all ports as all ports are connected to tank.

If you push or pull the levers, air should exit the work ports.

Some pictures might help identify the valves.

augercreek · Jan 30, 2013

Good info J-J. No other markings on the valves. The two spool appears to be just a two spool valve.The three spool does have a PB in it so I'll being checking on that,also two of the spools have detents,darn it!Can one of them be changed to centering? Maybe too much of a hassel?
Your brother in Christ Jerry