What do you call those things that stick out of a ground or wall...

[Flapper]

You know those plumbing assembles, that consist of a pipe coming out of a ground or wall, to go through some valves and devices, and back in? Like for an RPZ or PRV. Outside you may have an RPZ on one and inside you may have a PRV and main valve. Do they have a name or something? Here is an example of a plumbing assembly for an RPZ

Spoiler: Image

and here is for a main valve and PRV

Spoiler: Image

I would like to know what they are called because I have a PRV and main valve plumbing assembly (like in second picture) that I often need to refer to but not sure what to call it.

 

[Gary Swart]

The first photo is a back flow preventer. They come in several variations. Some have to be above ground, but the better ones can be in a box below ground level. The are required for irrigation systems that share domestic water lines. The second photo is a pressure regulator valve, usually referred to as a PRV. Does this answer your question?

 

[Sponsor]

 

[Flapper]

The first photo is a back flow preventer. They come in several variations. Some have to be above ground, but the better ones can be in a box below ground level. The are required for irrigation systems that share domestic water lines. The second photo is a pressure regulator valve, usually referred to as a PRV. Does this answer your question?

No, I meant, what do you call the arrangement, where you have two pipes coming out of a ground or wall, connected together through devices, for the purpose of having the devices accessible. The pipes are underground or in a wall so they come out for the devices and go back in, in an arrangement/assembly of plumbing. I am wondering what these things are called, if they have a name.
Basically anything that comes out of a wall/ground and goes back in for the purpose of having devices (valves, backflow preventers, hose bibs, etc) for accessibility.

it seems that nobody understands me here -_-

 

[Smooky]

An exposed loop
If it is for a softener, it is called a softener loop

 

[hj]

quote; Some have to be above ground, but the better ones can be in a box below ground level.

I have NEVER heard of ANY being allowed below ground because the open "vent" usually has to be at least 12" above the ground.

 

[Flapper]

An exposed loop
If it is for a softener, it is called a softener loop

Ok, so it's a loop, thanks!! So if it has a PRV then I can call it a PRV loop.

 

[Gary Swart]

HJ, it is seldom, if ever, I can say you are wrong, but today I must. You say you have never seen a back flow below ground? Well for over 30 years I have one in my yard. It is a Wilkins 950XLT. Was inspected and approved my the city the first year and has been recertified annually ever since. Perhaps there is something I missed, be the first photo certainly appears to be that of a back flow device.

 

[Flapper]

HJ, it is seldom, if ever, I can say you are wrong, but today I must. You say you have never seen a back flow below ground? Well for over 30 years I have one in my yard. It is a Wilkins 950XLT. Was inspected and approved my the city the first year and has been recertified annually ever since. Perhaps there is something I missed, be the first photo certainly appears to be that of a back flow device.

The "Wilkins 950XLT" appears to be a double check valve, not an RPZ, so it doesn't have a vent.