How Can We Help?
You are here:
< Back
![](https://upload.wikimedia.org/wikipedia/en/thumb/2/2a/Sprinkler_branch_penetration.jpg/220px-Sprinkler_branch_penetration.jpg)
The annulus, or annular space, is the space between a penetrant and anything that surrounds it, such as the sides of an opening or a sleeve, as the case may be.[1] It is named after the corresponding geometric concept due to its shape.
References
- ^ "Fire Stop Technologies". firestopstl.com. Retrieved 2024-01-15.
External links
External examples of the use of the term.
- Annulus, a term used within a firestop patent
- Annulus, as used in UL System C-AJ-1557 Firestop System, Configuration A
Categories
-
Annuals36
-
Bulbs, Corms & Tubers41
-
Ferns27
-
Fruits3
-
Garden Plants23
-
Grasses26
-
Herb17
-
Insects1
-
Mammals1
-
Midwest Native Plants0
-
Northeast Native Plants112
-
Perennials123
-
Rose1
-
Shrubs47
-
Trees112
-
Tropical Plants53
-
Upland Birds5
-
Vines18
-
Viola Tricolor1
-
Water Gardening & Plants9
-
Waterfowl0
-
Wetland Birds0
-
Wetland Plants4
-
Wildbirds172
-
Wildflowers1
-
Woodland Plants29
Table of Contents
Recent Comments