Spiral Water Meter

Size of Meter			Max. recording Cap in Ltrs. Millions	Min. Reading Qty in ltrs	Hydrostatic Test	Nominal Cap of water meters discharge Ltrs./hrs. at 3 m loss of head	Intermidiate Cap of Water Meter discharge Ltrs./hrs. at 1m loss of head	Metering Accuracy	Minimum starting flow Lt./hr.	Permissible Loading Ltrs./ day (8 hours)
mm	inches		Max. recording Cap in Ltrs. Millions	Min. Reading Qty in ltrs	Hydrostatic Test			Metering Accuracy	Minimum starting flow Lt./hr.	Permissible Loading Ltrs./ day (8 hours)
40		1½	100	10	1.6 Mpa	50000	20000	± 2%	500	200000
50		2	100	10	1.6 Mpa	50000	20000	± 2%	500	200000
65		2½	100	10	1.6 Mpa	125000	62000	± 2%	1000	620000
80		3	100	10	1.6 Mpa	125000	62000	± 2%	1000	620000
100		4	1000	100	1.6 Mpa	200000	100000	± 2%	1500	1000000
150		6	1000	100	1.6 Mpa	500000	250000	± 2%	3500	2500000
200		8	1000	100	1.6 Mpa	800000	400000	± 2%	5500	4000000
250		10	1000	100	1.6 Mpa	1100000	550000	± 2%	9000	5500000
300		12	1000	100	1.6 Mpa	1500000	750000	± 2%	14000	7500000
350		14	10000	1000	1.6 Mpa	2000000	1000000	± 2%	20000	10000000
400		16	10000	1000	1.6 Mpa	3000000	1500000	± 2%	25000	15000000
450		18	10000	1000	1.6 Mpa	3100000	1500000	± 2%	26500	15000000
500		20	10000	1000	1.6 Mpa	5000000	2500000	± 2%	35000	25000000
600		24	10000	1000	1.6 Mpa	7000000	3000000	± 2%	45000	35000000
700		28	10000	1000	1.6 Mpa	7000000	3000000	± 2%	45000	35000000
750		30	10000	1000	1.6 Mpa	7000000	3000000	± 2%	45000	35000000
900		36	10000	1000	1.6 Mpa	7000000	3000000	± 2%	45000	35000000
1000		40	10000	1000	1.6 Mpa	7000000	3000000	± 2%	45000	35000000

Working Condition:

From minimum flow rate (Qmin) inclusive to transitional flow rate (Qt), exclusive: ±5%
From transitional flow rate (Qt) inclusive, to maximum flow rate, (Qmax), exclusive: ±2%

* Required Fields