Nutrient Separating Baffle Box
DRAWINGS AND SIZES
Because the entire flow is always treated and head loss is so minimal, determining the appropriate size of the Nutrient Separating Baffle Box for a project is more often an element of pipe size than flow rate. 

Listed below are common sizes.
 
Custom Sizes are available.
 
*Height can vary as needed so that the top of the vault is either at finish grade or close to finish grade for access and servicing.
 
 

Recommended
Pipe Sizes:

Model #

Inside
Width

Inside
Length

Baffle Height

Standard Inside
Height*

Adobe
PDF

AutoCAD
DWG

4" to 12"

NSBB-
2-4-60

2'

4'

24"

5'

Download

Download

8" to 18"

NSBB-
3-6-72

3'

6'

36" 

6'

Download

Download

12" to 18"

NSBB-
4-8-84

4'

8'

36"

7' 

Download

Download

12" to 30"

NSBB-
5-10-84

5'

10'

36"

7'

Download

Download

18" to 36"

NSBB-
6-12-84

6'

12'

36"

7'

Download

Download

30" to 48"

NSBB-
8-12-84

8'

12'

36"

7'

Download

Download 

36" to 54"

NSBB-
8-14-100

8'

14'

40"

8'4"

Download

Download

42" to 60"

NSBB-10-14-100

10'

14'

40"

8'4"

Download

Download 

 48" to 60"

NSBB-10-16-125

10'

16'

46"

10'5"

Download

Download

54" to 72"

NSBB-12-20-132

12'

20'

48"

11'

Download

Download