Omega Engineering FP-6000 manual Factors Plastic Pipe, Gpm/Hz Lpm/Hz

K-factors

Plastic Pipe

Schedule 40 Plastic pipe per ASTM-D-1785

	K-FACTOR K-FACTOR A-FACTOR A-FACTOR
PIPE	PULSES/	PULSES/	U.S.
SIZE	U.S. GAL	LITER	GPM/HZ	LPM/HZ
1 1/2	124.400	32.8666	0.4823	1.8256
2	80.140	21.1731	0.7487	2.8338
2 1/2	56.730	14.9881	1.0576	4.0032
3	36.180	9.5588	1.6584	6.2769
3 1/2	26.500	7.0013	2.2642	8.5698
4	20.140	5.3210	2.9791	11.276
5	12.250	3.2365	4.8980	18.539
6	8.1430	2.1514	7.3683	27.889
8	4.3980	1.1620	13.643	51.637
10	2.6340	0.6959	22.779	86.219
12	1.7770	0.4695	33.765	127.80

Schedule 80 Plastic pipe per ASTM-D-1785

	K-FACTOR	K-FACTOR	A-FACTOR	A-FACTOR
PIPE	PULSES/	PULSES/	U.S.
SIZE	U.S. GAL	LITER	GPM/HZ	LPM/HZ
1 1/2	139.400	36.8296	0.4304	1.6291
2	90.790	23.9868	0.6609	2.5014
2 1/2	64.610	17.0700	0.9286	3.5149
3	41.050	10.8454	1.4616	5.5323
3 1/2	29.940	7.9102	2.0040	7.5852
4	22.660	5.9868	2.6478	10.022
5	13.700	3.6196	4.3796	16.577
6	9.1990	2.4304	6.5224	24.687
8	4.9060	1.2962	12.230	46.290
10	2.9450	0.7781	20.374	77.114
12	1.9930	0.5266	30.105	113.95

K-factors and A-factors are listed in U.S. gallons and in liters. Conversion formulas for other engineering units are listed below.

K = 60/A

A = 60/K

•The K-factor is the number of pulses generated by the FP-6000 series paddlewheel per unit of liquid in a specific pipe size.

•The A-factor is the flow rate (per minute) repre- sented by 1 Hz output from the FP-6000 series sensor in a specific pipe size.

To convert K from	to	multiply 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	liters	0.264
U.S. gallons	Imperial gallons	1.201
To convert K from	to	multiply K by
liters	cubic meters	1000
liters	kilograms of water	1
liters	gallons	3.785

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