What is the correct control valve for my plow

[SpringHollow]

I really am lacking in knowledge when it comes to understanding hydraulic control valves.

I just purchased a used V-snowplow. It is an older style which uses a double acting hydraulic cylinder on each half of the plow. I think double acting is the correct term for: provide pressure to one side or the other depending upon what you want it to do

I need to decide what i will use as the source for hydraulic pressure and come up with a quick release mount for the necessary control valves.

It seems to me that i need a double spool valve, open center because most of the time i want return flow back to the tank?, double acting, with pressure relief. Does that sound right?

Most of the REALLY cheap ones i could find were single acting and closed center.

I found this one which is moderately inexpensive: Surplus Center - 2 SPOOL 8 GPM PRINCE MB21BB5C1 DA VALVE

Another option would be to use the existing loader joystick and add a solenoid diverter valve to control the output of the joystick. I could then use that setup for possibly other implements as well including the minihoe and grapple bucket. Seems like to accomplish that, I would need two of something like these: Surplus Center - 12 VDC 13.2 GPM SAE 8 DOUBLE SELECTOR VALVE

There would be the issue of where to find room for them and all the associated connections.

I guess i could also plumb/mount the new spool valves permanently and then use them to control other things as well.

Normally, this is where i expect JJ or Moss to come to the rescue.

Thanks for any help,

Ken

 

[J_J]

I really am lacking in knowledge when it comes to understanding hydraulic control valves.

I just purchased a used V-snowplow. It is an older style which uses a double acting hydraulic cylinder on each half of the plow. I think double acting is the correct term for: provide pressure to one side or the other depending upon what you want it to do

I need to decide what i will use as the source for hydraulic pressure and come up with a quick release mount for the necessary control valves.

It seems to me that i need a double spool valve, open center because most of the time i want return flow back to the tank?, double acting, with pressure relief. Does that sound right?

Most of the REALLY cheap ones i could find were single acting and closed center.

I found this one which is moderately inexpensive: Surplus Center - 2 SPOOL 8 GPM PRINCE MB21BB5C1 DA VALVE

Another option would be to use the existing loader joystick and add a solenoid diverter valve to control the output of the joystick. I could then use that setup for possibly other implements as well including the minihoe and grapple bucket. Seems like to accomplish that, I would need two of something like these: Surplus Center - 12 VDC 13.2 GPM SAE 8 DOUBLE SELECTOR VALVE

There would be the issue of where to find room for them and all the associated connections.

I guess i could also plumb/mount the new spool valves permanently and then use them to control other things as well.

Normally, this is where i expect JJ or Moss to come to the rescue.

Thanks for any help,

Ken

Does your current FEL valve have PB?

Yes. the solenoid valve would work as a divider valve. To operate a grapple you only need one solenoid valve. The curl hose goes to the input of the electric valve. Switch off, circuit 1 becomes the curl outlets, and switch on, circuit 2 would be the grapple outlet. The FEL valve would provide relief for the solenoid valve.

If your FEL valve does not have PB. you could put the new manual valve with PB, before the FEL valve.

You could also plumb in the manual valve downstream of the solenoid valve for 2 remotes .

 

[MossRoad]

I think double acting is the correct term for: provide pressure to one side or the other depending upon what you want it to do

A single acting cylinder only has pressure on one side of the ram. It relies on some other force to push it in the other direction (like gravity on a dump bed or another cylinder pushing from the opposite direction, like a two cylinder angle snow plow).

A double acting cylinder can have pressure on either side of the ram, so you can power it in OR out.

The push side has more force than the pull side. Inside the tube is a piston with the rod connected on one side. For, say, a 3" cylinder, there is a 3" circle on the bottom of the piston which provides 7.07 square inches of surface area for the hydraulic fluid to push against on the push stroke. If there is a 1.5" diameter rod connected to the other side of the piston, there is 1.77 cubic inches less surface area for the fluid to push against on the pull stroke.

Hope that helps.