Wednesday, 01 February 2017
  2 Replies
  2.1K Visits
0
Votes
Undo
  Subscribe
I love the new pipe sizing dialog box (or radio box I forget which one it is):) . I love the way that we can modify the valve size at this point and it is reflected in the tag too. That used to be (and still is) one of the very few QC checks that LandFX doesn't catch. A valve can still go out as the default size unless someone checks to ensure that velocities or pressure losses are not exceeded. This actually allows someone a visual summary to confirm, or change the valve size. - Hats of to you the Wizards at LandFX!
I'm having a little issue with the pipe sizing dialog box. Maybe I just don't understand but it appears that the settings don't match our tables. We try to break our drip zones into manageable sizes. One way that we do this is by using the above ground transition point (AGTP) as a guide. We try to have the lateral supplying the AGTP no larger than 3/4". Our tables state if we're specifying sch 40 PVC, and our velocities are to be below 5 FPS, we can have a flow of 8 GPM. Yet the software is limiting us to 6.05 GPM. Why is this?
Thanks Jake for the explanation.

It was the pressure variation setting that was dictating less flow. When we allowed the variation to go up to 25% (which is safe with the equipment that we're using). we were able to get up to almost to 8 GPM (7.58). When working with a site that has a significant elevation variance and you're forced to not go with the contours, or if you're working with low flows over a long distance (for instance tree bubblers in a parking lot) this new lateral sizing radio box lets us designers see, and be aware of ,the hydraulic implications of our design. I like having more information to review during the design process. Especially when I don't have to work harder to get it.

Thanks LandFX Wizards!
  • Page :
  • 1
There are no replies made for this post yet.