Discover how to connect sprinklers to branch lines in the classroom and corridor areas through the use of arm overs, an essential aspect of sprinkler design. View the process of aligning and adjusting the length of the pipe to ensure optimal sprinkler placement.
Key Insights
- The article demonstrates the process of connecting sprinklers to branch lines, specifically how to align and adjust the length of the pipe to match the sprinkler's position.
- Due to the possibility of the drop not lining up exactly with the sprinkler, the over down configuration is used. This allows for easier adjustments in the field compared to relocating an already designated branch line.
- While the task of connecting all sprinklers on both floors of the building can be tedious, it is necessary for a successful sprinkler design. This process involves iteratively connecting and aligning each sprinkler with its respective branch line.
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Let's continue in our classroom and corridor areas by connecting our sprinklers to our branch lines with arm overs. So let's find this section view and drag it up so that we're covering this row of branch lines and sprinklers. Go to View, and now let's drag it up so we can work on both floors at the same time.
We can go back to our Level 2 piping plan or your Level 1 piping plan and type Window Tile (WT). Okay, now it's a process of just connecting the 1-inch drops to the sprinklers. And again, the reason we use our over-down configuration is that sometimes the drop will not line up exactly with the sprinkler, so we can align it and shorten or lengthen this piece of pipe.
This is much easier to do out in the field as opposed to relocating your branch line that's already on a designated outlet from your main. So let's get started. We'll drag this down and create our connection piece. Now it's a process of just going all the way down the line.
So you can feel free to watch this portion of the video or you can skip ahead, but we will be going through both of these floors connecting all the sprinklers in this area. As you can see here, these are not quite aligned, so I'm going to type AL, centerline of the sprinkler to the branch line—and now I'm connected.
All right, staying in the same section, I'll go down to Level 1. As you've probably realized, this isn't the most exciting portion of sprinkler design.
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So this is a good time to listen to a podcast or some music to help the time go by because, to be honest, it's fairly repetitive work—but it still needs to get done. Okay, now we'll go back. We’ve finished this row.
Let's pull back, and we'll do this row on both levels. Then down to Level 1. All right.
