Prince Sectional valve

Bluecheck546 · Nov 5, 2004

Hi, To all of you hydraulic guru's out there I got a question. I'm looking to purchase an outlet end section. What it means" Open Center with Conversion Plug SAE 8 Port Size". Is this valve section can be converted to Power Beyond somehow with the "conversion Plug"? /forums/images/graemlins/frown.gif Thanks

Henro · Nov 5, 2004

I think you got it right, but it would be better if you listed the part number of the outlet section.

You can also download (or at least you used to be able to) the prince catalog for valves and cylinders, that gave info on most of their products, including part numbers (and how to understand what they mean).

If I recall correctly they have two sectional control valves, one rated for 20 gpm, and a smaller one rated for up to 12 gpm.

The SVE11 is what I bought, which is an open center outlet section that uses a conversion plug to give a power beyond outlet. This is for the 12 gpm rated valve.

Bluecheck546 · Nov 5, 2004

Henro, thanks for the quick reply. The outlet section number is #SVE11, the same # as yours. I can get for $29.06 plus shipping, Is this price ok? Thanks. /forums/images/graemlins/smile.gif

Henro · Nov 5, 2004

I paid $24.90 for that outlet section directly from Prince a couple months ago, when they were still selling to the public.

Somehow I ended up with the power beyond plug that was either included in the price or they forgot to charge me for...

When I bought this in early September, Prince was still selling surplus stuff at good prices, but had already quit giving good discounts on new stuff to customers calling directly. I think that price I got on the outlet section was new and the price was 10% off list. I understand, but do not know for sure, that Prince no longer sells to individuals and wants you to buy through one of their retailers...

Sounds like the price you quoted may be around list price. Question is whether the power beyond plug is included in the price...Looking at the Prince Catalog, it says the SVE11 includes the conversion plug. That would explain why I ended up with one and was not charged for it. It was in the box with the end plate, but not screwed into anything, just laying in there...

Now that I think back, I think the guy I talked to steered me towards the SVE11. I had intended to buy the SVE22, which has the power beyond conversion port, but no conversion plug. He said it was a little cheaper to buy the SVE11, which includes the conversion plug.

MadReferee · Nov 6, 2004

What you want/have is a Prince SV directional control valve.

You will need and inlet section (typically SVI15), one or more work port sections (typically SVW1BA1), and an outlet section (typically SVE22 which is open center w/ power beyond).

The SVE11 is simply the standard open center outlet section with the power beyond port capped with a threaded plug. The SVE22 is the same outlet section only with the power beyond port conversion plug installed in place of the threaded cap plug. It takes an SAE 8 fitting.

You need all 3 sections (inlet/work/outlet) for the valve to function correctly.

These valve sections can be purchased from Surplus Center .

Henro · Nov 6, 2004

The SVE11 is simply the standard open center outlet section with the power beyond port capped with a threaded plug... 

MadRef,

Just so we make sure which is right, I think you got your numbers transposed in your post.

My Prince catalog says the SVE11 it the section with the conversion plug included, and that the SVE22 includes the port, but gives no mention of including the conversion plug.

Since we stated the opposite on this, could you review your post and see what you think? What I ordered and received supports what the catalog says...

MadReferee · Nov 6, 2004

Henro,

If you have just an SVE11 then you do not have the power beyond conversion plug. You can check this very quickly by taking al look at the outlet port section. There should be 3 available outlet ports, one on top and one on the side near the edge which are for the return to tank line (you can use either), and one in the center of the triangle looking part of the casting.

The one in the center is the "conversion plug". I believe there are 5 different plugs that can go there, one is the standard cap for open center (SVE11), one is the power beyond (SVE22), one is the closed center (SVE21), and 2 are for pressure build up valves.

So, if that center port is capped then you do not have power beyond. The power beyond plug will be female threaded to fit an SAE 8 male hose fitting.

My information comes directly from the Model SV Sectional Body Directional Control Valve Parts Manual from Prince. I may have gotten it from the internet or my hydraulic guy, but it's a great reference manual with fantastic pictures.

Henro · Nov 6, 2004

MadRef,

Knowing how confusing getting hydraulic parts straight in one's head can be to someone new to them, I think we need to come to some conclusion on this point, or at least confuse who ever reads this later enough that the will make sure to ask the right questions when they order Prince control valve parts! /forums/images/graemlins/grin.gif

So here goes... /forums/images/graemlins/smile.gif

 If you have just an SVE11 then you do not have the power beyond conversion plug. 

Hummm...but I did order the SVE11 and it did come with the power beyond conversion plug...

And the Prince catalog states, and I quote:

"SVE11 Open center outlet w/conversion plug "

There are as you say different conversion plugs. When I ordered the SVE11 it came with the power beyond conversion plug. It could be that they price the SVE11 to include a conversion plug of the buyer's choice, that I don't know. But I do know that the SVE11 I ordered did come with the power beyond conversion plug in the box, and that was what I told the person I ordered it from I needed.

So what is the difference between a port and a plug? I assumed that a port is the threaded hole in which you put a conversion plug. You are using the terms in this way as well.

Now if this is the case, the SVE11 apparently comes set up with a conversion plug to give it power beyond or some other capability. Since that is what the catalog says and what I experienced.

And the SVE22 come with a port for the installation of whatever plug the buyer chooses to purchase separately.

As the catalog says:

"SVE22 Power Beyond Outlet w/ #8 SAE Beyond Port "

In other words, the SVE22 has the port for the power beyond plug to go into, but not plug included.

So how does one make sense of this? It confused me, as I was going to order the SVE22 and also a power beyond conversion plug, but the guy I ordered from said it would be a little cheaper to order the SVE11 and tell him what plug I wanted (so he said something along those lines) and that is what I did. Better stated, that is what HE did, as I could only take his word for it, so I put my faith in him, and it worked out.

At this point I have concluded the following. I may be wrong on this as I came to this conclusion on my own from looking at the Prince catalog part numbers.

Each kind of component is given a letter designation to begin with. SVI means inlet section, SVW is working section, SVE is exhaust section, and so on.

My GUESS is that on the outlet sections (SVE) only one basic section may be used, built in a way that its function can be changed according to which conversion plugs are installed in it.

Now to reach a conclusion on my part!

I think you may be right! /forums/images/graemlins/shocked.gif /forums/images/graemlins/shocked.gif /forums/images/graemlins/shocked.gif And that Prince must have forgot to charge me for the "power beyond port that I received with the SVE11 outlet section!

Understanding Prince terminology is the key.

Page 53 of their catalog for control valves has an illustration of SV Outlet cover options. It seems that what we have been calling a conversion PLUG is really just a plug. It is simply a something that screws into the outlet section to block it off. Nothing flows through a plug. It provides the same function as what you use in your bathtub drain...

Now a PORT is something that screws into the same threaded hole (or maybe a different hole in the same outlet block) and which offers a new threaded hole out of which hydraulic fluid can flow when the control valve is in a certain position.

In the case of Power Beyond on the SVE outlet section, this option is called a "Power Beyond option with SAE #8 Beyond Port."

Confusing to say the least, because plug can be used to mean both something that stops up a hole and ALSO something that provides a PORT to connect a hose to... /forums/images/graemlins/frown.gif

I can see now that ordering the SVE11 and getting the power beyond outlet port with it (without being charged for it) confused things in my mind.

Here's my take on it after thinking it through this morning.

For the Prince SVE outlet section:

A plug is something that screws into a hole in the outlet section.

A plug can be a plug that is a simple stopper, or it can be what we might refer to as a "conversion plug," which is something that screws into the hole in the outlet section, but in turn has a hole within itself, to which a hydraulic hose is connected. Different conversion plugs can be screwed in, to provide different functionality. Open center power beyond, closed center and so on.

The SVE11 when listed in the catalog w/conversion plug as having a conversion plug really must mean it is plugged, and does not have a port at all. This would be consistent with what I received, as the hole in the section was indeed plugged, and the power beyond port ( AKA conversion plug) was in the box separately.

The SVE22 when listed w/ #8 SAE power beyond port, actually is supplied with the PB Port (AKA conversion plug) installed in it.

So now we are on the same page, and who ever may read this thread in the future will not be mislead by my confusion that resulted from my being “given” a free Power Beyond Port by Prince!

One of my weaknesses is that I need to understand the why’s of things…I see now why my original statement was in error. Hope this post makes sense to someone.

To the original poster: Looks like the SVE11 will NOT have the power beyond conversion port included, and that you will have to order it separately...I just got lucky... /forums/images/graemlins/smile.gif

MadReferee · Nov 6, 2004

( For the Prince SVE outlet section:

A plug is something that screws into a hole in the outlet section.

A plug can be a plug that is a simple stopper, or it can be what we might refer to as a "conversion plug," which is something that screws into the hole in the outlet section, but in turn has a hole within itself, to which a hydraulic hose is connected. Different conversion plugs can be screwed in, to provide different functionality. Open center power beyond, closed center and so on.

The SVE11 when listed in the catalog w/conversion plug as having a conversion plug really must mean it is plugged, and does not have a port at all. This would be consistent with what I received, as the hole in the section was indeed plugged, and the power beyond port ( AKA conversion plug) was in the box separately.

The SVE22 when listed w/ #8 SAE power beyond port, actually is supplied with the PB Port (AKA conversion plug) installed in it.

So now we are on the same page, and who ever may read this thread in the future will not be mislead by my confusion that resulted from my being “given” a free Power Beyond Port by Prince!)

Bingo!!

You got it, almost. The SVE11 "conversion plug" is simply a stopper plug that fits into the threaded port hole. It is the "open center only" option for the valve section. This would be used if the valve was the last in the circuit since the other 2 outlet ports always dump directly to the tank.

Yes Prince 's terminology can be somewhat confusing to the lay person.

In the case of the SV valves, having a conversion port allows the same valve section to be used for many different configurations and applications. Prince does sell valve sections that do not have the port for the conversion plugs.

See if you can find the parts manual. The illustrated beakdowns of the various sections help eliminate confusion and provide additional technical info.

Bluecheck546 · Nov 6, 2004

Ok, I'm pretty sure I got it. Since I have already placed an order for SVE11....... I go with it. In my case the stacked valve combination( SVI25, SVW1BA1,SVW1BA1, SVE11) will be the last valve connected. That should work I'm I right? Can somebody describe the conversion plug to me... exactly what it is : /forums/images/graemlins/ooo.gif is it female that have a some kind check valve build in? ,Is it a pipe thread or Sae type fitting. What makes a Power Beyond port? I'm toolmaker by trade and have access to well equipped machine shop. I'm sure that If can be done I will get it done. I need a picture or drawing of some kind. Thanks.