15
T
ABLE
3B
Support Centers for Horizontal PVC Pipe
NOMINAL PIPE SIZE, INCHES
MAXIMUM DISTANCE BETWEEN CENTERS(FEET)
MAXIMUM DISTANCE BETWEEN CENTERS(FEET)
NOMINAL PIPE SIZE, INCHES
SDR & SCH. 40
SCH. 80
1-1/4; 1-1/2; 2
4-1/2
5
3
5-1/2
6
4
6-1/4
7-1/2
6
6-3/4
8-1/2
8
7-1/2
9
10
7-3/4
9-1/2
12
8
10
Note: Where Pipe sizes are not available or total pipe run exceeds 100ft, use the next larger size pipe.
T
ABLE
3A
Minimum Pipe Sizes and Slope
FLOW RATE, GPM
(LESS THAN)
PIPE SIZE, INCHES
MINIMUM PIPE SLOPE,
INCH/FT
50
1 1/2
1/4
80
2
1/4
120
2 1/2
1/4
180
3
1/8
300
4
1/8
600
6
1/8
1000
8
1/16
