The valves purchased locally are slightly different, please verify.

[sumking]

I bought an valve in a local store, it looks good, similar to the Amazon and summit valves,
But when I planned to simulate the installation, I found that most valves on the Internet have P, T, and N, usually T has two identical interfaces,
But my valve has only one P and two Ts, it seems that there is one N missing,
Looking through the instructions, it seems that the function of the T on the side is N,
That is to say, this valve has only one T on the front, and the T and the side suspected to be N are connected internally,
Higher integration? Is it really possible?

 

[Russell King]

I believe you MUST install a power beyond sleeve into one (either one) of the T ports to provide the power beyond to the next valve in the system.

 

[North Idaho Wolfman]

If your using it on a Kubota you need power beyond adapter.
It installs in the side port.

 

[TheOldHokie]

I bought an valve in a local store, it looks good, similar to the Amazon and summit valves,
But when I planned to simulate the installation, I found that most valves on the Internet have P, T, and N, usually T has two identical interfaces,
But my valve has only one P and two Ts, it seems that there is one N missing,
Looking through the instructions, it seems that the function of the T on the side is N,
That is to say, this valve has only one T on the front, and the T and the side suspected to be N are connected internally,
Higher integration? Is it really possible?

View attachment 140900 View attachment 140901 View attachment 140902 View attachment 140903

The N port on convertible valves is internally connected to both the tank (T) and neutral (N) cores. The conversion sleeve or plug simply isolates the T cores from the N core. Only one of the ports is machined for the plug or sleeve. You do not have a choice.

The number and location of T ports varies with casting design. Summits casting has two, your valve has one.

Follow the instructions for your valve.

Dan

 

[sumking]

Thanks for the replies, friends, for helping me confirm

 

[sumking]

The N port on convertible valves is internally connected to both the tank (T) and neutral (N) cores. The conversion sleeve or plug simply isolates the T cores from the N core. Only one of the ports is machined for the plug or sleeve. You do not have a choice.

The number and location of T ports varies with casting design. Summits casting has two, your valve has one.

Follow the instructions for your valve.

Dan

Yes, I just carefully observed the inside of the P and T interfaces. The P is simpler, while the inside of the P and suspected N ports is more complicated, with multiple spaces and channels. Your knowledge is so rich.

 

[sumking]

I contacted summit today. They can mail the valve to my city. The shipping cost is only half of my current Italian BLB, which is 300 dollars cheaper. But I guess summit will not have after-sales service if it is mailed. The store where I bought the valve has perfect after-sales service. I wonder how reliable these mechanical valves are?

 

[TheOldHokie]

I contacted summit today. They can mail the valve to my city. The shipping cost is only half of my current Italian BLB, which is 300 dollars cheaper. But I guess summit will not have after-sales service if it is mailed. The store where I bought the valve has perfect after-sales service. I wonder how reliable these mechanical valves are?

These types of valves are very reliable especially given their extremely low cost.

The valve mechanism is a sliding steel cylinder (spool) in a cast iron bore. The fluid and pressure "seal" is acheived by a sub-thousands radial clearance. The only elastomeric seals are the low pressure dust and oil seals in the housing where the spools protrude. Those low pressure seals are on the tank passage walls which is why the maxumum allowable back pressure on the tank port is generally <500 PSI.

Maintaining the cleanliness of the oil is of paramount importance in preventing corrosion and wear on the very close fitting spools. When the spools and bores do wear the only "service" option is an entire new valve.

Dan