Char-Lynn hydraulic valve

Terry Bahler · Jul 4, 2009

I have a '47 M with a M/W live hydraulic pump. I'd like to plumb in a Char-Lynn V-960 3-way valve in front of the belly pump's single-action hydraulics. This valve was made before vip codes came out; it has built-in pressure relief and is open center. Is there a power-beyond sleeve out there that would allow my plan to work? I'd rather not put in a flow divider, Id like to save that for when (or if) I find a torque generator for power steering. Since I don't know the output of the M/W pump, this could all be a pipe dream with too many pipe fittings.

armand tatro · Jul 4, 2009

Not familier with your valve but my idea would be to disconect pressure line from where it enters hyd. res., connect pressure line from pump to charlyn valve, than output from char-lyn valve to hyd. res. These valves need to be hooked in series. However somebody more familier with the char-lyn valve may have a better idea. I have plumped valves in series on farm tractors and trucks and had good luck. You may need to chance the pressure relief on the charlyn valve if it is rated higher rhan the pump output. I would like to see a picture of that Char-lyn valve and also a picture of where the pressure line from the pump enters the hyd. Res. I know werer the suction line comes out of the hyd. res. Armand

Terry Bahler · Jul 4, 2009

Thank you, Armond, for your reply. I don"t know how to post the pictures, so I"ll try to paint a better verbal picture. The belly pump has been modified internally; where the drive used to hook up to the transmission is an M/W in put connector for input flow from the live pump. The sump of the internal pump inside the reservoir has been welded shut and a passage blocked off where the back side of the drive shaft was. The hydraulics do all the regular things only now they"re "live." The valve is a regular looking valve with an aluminum cast body, 3/4 inch inlet and outlet with 1/2 inch work ports. Although this valve is 50 years old or more it is still in box with all its registration papers. I"d hate to destroy it with miss application. Terry

Terry Bahler · Jul 5, 2009

Well, here are the pictures...#1 the whole system. #2 the valve. #3 the belly pump flow into the rear of the reservoir and out flow to the pump from the the front of the belly pump.

armand tatro · Jul 5, 2009

Your system is plumbed as I thought. I see what appears to be a coupling in at one of the lines to and from the pump by the engine oil frlter. If the pressure line has a coupling there that would be a good place to plumb the Char-lyn valve. Thanks for the pictures. By the way if you can't splice in at the coupling by the oil filter you will have to disconnect the pressure where it enters the hyd. tank and then add another hose from the valve output to the inlet of the hyd. tank Armand

Curt2676 · May 23, 2012

i have a question on the char-lynn valve in your picture. I have one like it and would like to know if you can use it on a 2 way cylinder. I hooked mine up and it only has flow to one outlet when the lever is moved the other way it flows to the outlet and the return so no pressure. I would like to talk to you if possible.

Thanks
Curt

mkirsch · May 24, 2012

I believe a 3-way valve only gives you "1-way" hydraulics.

There is no point in adding it to the belly pump hydraulics.

To get 2-way hydraulics you need a 4-way valve.

D Slater · May 24, 2012

Present system uses the liftall relief valve for pressure control with a different spring to give 1000 PSI when new. Going through the liftall limited the system to 8 GPM. M&W pumps would put out up to 12 GPM using other valves and not using the liftall valving. They still liked to limit output to 1000 PSI. Not familiar with the valve but from the location of the one work port. Looks like it may just return into the same passage as return to reservoir line and have no way to pressure it. You could check passages out with air pressure and operating spool also for flow paths.

Char-Lynn hydraulic valve

Terry Bahler

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armand tatro

Well-known Member

Terry Bahler

New User

Terry Bahler

New User

armand tatro

Well-known Member

Curt2676

New User

mkirsch

Well-known Member

D Slater

Well-known Member

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