GF Signet 2540 Stainless Steel High Performance Flow Sensor User Manual
Page 8
2540 High Performance Flow Sensor
8
9. K-Factors (Stainless Steel, Wrought Steel & Plastic Pipe)
K-factors are listed in U.S. gallons and in liters. Conversion formulas for other engineering units are
listed below.
•
K = 60/A
The K-factor is the number of pulses generated by the 2540 paddlewheel per unit of liquid in a
specifi c pipe size.
To convert
multiply
K from:
to:
K by:
U.S. gallons
cubic feet
7.479
U.S. gallons
cubic inches
0.00433
U.S. gallons
cubic meters
263.85
U.S. gallons
pounds of water
0.120
U.S. gallons
acre feet
325853
U.S. gallons
Imperial gallons
1.201
SCH 5S STAINLESS STEEL PIPE
PER ANSI B36.19
K-Factor K-Factor
PIPE PULSES/ PULSES/
SIZE U.S.
GAL LITER
1½ in. 115.1900
30.433
2 in.
71.3960
18.863
2 ½ in. 49.263
13.015
3 in.
32.636
8.622
3 ½ in. 24.537
6.483
4 in.
19.1350
5.055
5 in.
12.4490
3.289
6 in.
8.4602
2.235
8 in.
4.9137
1.298
10 in.
3.1228
0.825
12 in.
2.1772
0.575
14 in.
1.7977
0.475
16 in.
1.3717
0.362
18 in.
1.0855
0.287
20 in.
0.8801
0.233
22 in.
0.7293
0.193
24 in.
0.6141
0.162
XS WROUGHT STEEL PIPE
PER ANSI B36.10
K-Factor K-Factor
PIPE PULSES/ PULSES/
SIZE U.S.
GAL LITER
1 ½ in. 161.79
42.745
2 in.
95.713
25.287
2 ½ in. 66.686
17.618
3 in.
42.986
11.357
3 ½ in. 31.983
8.450
4 in.
24.668
6.517
5 in.
15.480
4.090
6 in.
10.691
2.825
8 in.
5.9733
1.578
10 in.
3.6489
0.964
12 in.
2.4548
0.649
14 in.
1.9931
0.527
16 in.
1.4970
0.396
18 in.
1.1727
0.310
20 in.
0.9388
0.248
22 in.
0.7685
0.203
24 in.
0.6446
0.170
SCH 10S STAINLESS STEEL PIPE
PER ANSI B36.19
K-Factor K-Factor
PIPE PULSES/ PULSES/
SIZE U.S.
GAL LITER
1½ in. 127.930
33.799
2 in.
76.439
20.195
2 ½ in. 51.946
13.724
3 in.
34.174
9.029
3½ in. 25.571
6.756
4 in.
19.829
5.239
5 in.
12.730
3.363
6 in.
8.5938
2.270
8 in.
5.0062
1.323
10 in.
3.1793
0.840
12 in.
2.1914
0.579
14 in.
1.8147
0.479
16 in.
1.3798
0.365
18 in.
1.0912
0.288
20 in.
0.8855
0.234
22 in.
0.7334
0.194
24 in.
0.6175
0.163
STD WROUGHT STEEL PIPE
PER ANSI B36.10
K-Factor K-Factor
PIPE PULSES/ PULSES/
SIZE U.S.
GAL LITER
1 ½ in. 140.030
36.996
2 in.
83.240
21.992
2 ½ in. 59.034
15.597
3 in.
38.674
10.218
3 ½ in. 28.752
7.596
4 in.
22.226
5.872
5 in.
14.061
3.715
6 in.
9.5160
2.514
8 in.
5.4523
1.441
10 in.
3.4507
0.912
12 in.
2.3318
0.616
14 in.
1.9186
0.507
16 in.
1.4483
0.383
18 in.
1.1390
0.301
20 in.
0.9146
0.242
22 in.
0.7506
0.198
24 in.
0.6311
0.167
SCH 40S STAINLESS STEEL PIPE
PER ANSI B36.19
K-Factor K-Factor
PIPE PULSES/ PULSES/
SIZE U.S.
GAL LITER
1 ½ in. 140.030
36.996
2 in.
83.240
21.992
2 ½ in. 59.034
15.597
3 in.
38.675
10.218
3 ½ in. 28.752
7.596
4 in.
22.226
5.872
5 in.
14.061
3.715
6 in.
9.5160
2.514
8 in.
5.4523
1.441
10 in.
3.4507
0.912
12 in.
2.3318
0.616
SCH 40 STAINLESS STEEL PIPE
14 in.
1.9556
0.517
16 in.
1.4970
0.396
18 in.
1.1900
0.314
20 in.
0.9577
0.253
24 in.
0.6662
0.176
SCH 40 WROUGHT STEEL PIPE
PER ANSI B36.10
K-Factor K-Factor
PIPE PULSES/ PULSES/
SIZE U.S.
GAL LITER
1 ½ in. 140.030
36.996
2 in.
83.240
21.992
2- ½ in. 59.034
15.597
3 in.
38.674
10.218
3 ½ in. 28.752
7.596
4 in.
22.226
5.872
5 in.
14.061
3.715
6 in.
9.5160
2.514
8 in.
5.4523
1.441
10 in.
3.4507
0.912
12 in.
2.3517
0.621
14 in.
1.9556
0.517
16 in.
1.4970
0.396
18 in.
1.1900
0.314
20 in.
0.9577
0.253
24 in.
0.6662
0.176