Calibration Table for Pipe Sizes 3…36 Inches
See the column descriptions on the previous page for additional information about the calibration table .
Column 1
Column 2
Column 3
Column 4
Column 5
Column 6
Pipe Size
Pipe O.D. (in.)
Pipe I.D. (in.)
K Value
Offset
Suggested Operating
Range (gpm)
3 inch Sch 10S
3 .5
3 .260
5 .009
0 .090
12…400
Std . Wt ., Sch 40
3 .5
3 .068
4 .362
0 .063
12…400
Extra Strong, Sch 80
3 .5
2 .900
3 .858
0 .043
12…400
PVC Class 125
3 .5
3 .284
5 .094
0 .093
12…400
PVC Class 160
3 .5
3 .230
4 .902
0 .085
12…400
PVC Class 200
3 .5
3 .166
4 .682
0 .076
12…400
4 inch Sch 10S
4 .5
4 .260
9 .597
0 .241
20…600
Std . Wt ., Sch 40
4 .5
4 .026
8 .34
0 .229
20…600
Extra Strong, Sch 80
4 .5
3 .826
7 .354
0 .188
20…600
PVC Class 125
4 .5
4 .224
9 .396
0 .240
20…600
PVC Class 160
4 .5
4 .154
9 .013
0 .240
20…600
PVC Class 200
4 .5
4 .072
8 .578
0 .239
20…600
5 inch Sch 10S
5 .563
5 .295
16 .305
0 .250
30…900
Std . Wt ., Sch 40
5 .50
5 .047
14 .674
0 .248
30…900
Extra Strong, Sch 80
5 .50
4 .813
13 .165
0 .246
30…900
6 inch Sch 10S
6 .625
6 .357
24 .089
0 .260
50…1500
Std . Wt ., Sch 40
6 .5
6 .065
21 .574
0 .257
50…1500
Extra Strong, Sch 80
6 .5
5 .761
19 .457
0 .254
50…1500
PVC Class 125
6 .625
6 .217
22 .853
0 .258
50…1500
PVC Class 160
6 .625
6 .115
21 .968
0 .257
50…1500
PVC Class 200
6 .625
5 .993
21 .068
0 .256
50…1500
8 inch Sch 10S
8 .625
8 .329
43 .914
0 .286
80…2500
Sch 20
8 .625
8 .125
41 .653
0 .283
80…2500
Sch 30
8 .625
8 .071
41 .063
0 .283
80…2500
Std . Wt ., Sch 40
8 .625
7 .981
40 .086
0 .281
80…2500
Sch 60
8 .625
7 .813
38 .288
0 .279
80…2500
Extra Strong, Sch 80
8 .625
7 .625
36 .315
0 .276
80…2500
PVC Class 125
8 .625
8 .095
41 .324
0 .283
80…2500
PVC Class 160
8 .625
7 .961
39 .869
0 .281
80…2500
PVC Class 200
8 .625
7 .805
38 .203
0 .279
80…2500
10 inch Sch 10S
10 .75
10 .420
70 .195
0 .321
125…4000
Sch 20
10 .75
10 .250
67 .668
0 .318
125…4000
Sch 30
10 .75
10 .136
66 .069
0 .316
125…4000
Sch 40, Std .Wt .
10 .75
10 .020
64 .532
0 .314
125…4000
Extra Strong, Sch 60
10 .75
9 .750
61 .016
0 .309
125…4000
Sch 80
10 .75
9 .564
58 .644
0 .306
125…4000
PVC Class 125
10 .75
10 .088
65 .431
0 .315
125…4000
PVC Class 160
10 .75
9 .924
63 .272
0 .312
125…4000
PVC Class 200
10 .75
9 .728
60 .733
0 .309
125…4000
12 inch Sch 10S
12 .75
12 .390
104 .636
0 .367
175…5000
Sch 20
12 .75
12 .250
102 .553
0 .364
175…5000
Sch 30
12 .75
12 .090
99 .347
0 .36
175…5000
Std . Wt ., Sch 40S
12 .75
12 .000
97 .576
0 .358
175…5000
Sch 40
12 .75
11 .938
96 .369
0 .356
175…5000
Sch 60
12 .75
11 .625
90 .441
0 .348
175…5000
Extra Strong
12 .75
11 .750
92 .775
0 .351
175…5000
Sch 80
12 .74
11 .376
85 .922
0 .342
175…5000
PVC Class 125
12 .75
11 .966
96 .912
0 .357
175…5000
PVC Class 160
12 .75
11 .770
93 .152
0 .352
175…5000
PVC Class 200
12 .75
11 .538
88 .842
0 .346
175…5000
Calibration
Page 14
February 2018
SEN-UM-01635-EN-11