GSW7666 is a prepayment water meter that complies with STS standard and has multiple nozzles. It is an ideal residential water meter for revenue protection & customers management of water utilities. With low consumption, the meter supports gradient charging and offers multiple caliber sizes (optional), making it a cost-effective metering device.

Main Features

·IP67 waterproof
·Data storage of 10 years
·Magnetic field protection
·Suitable for cold water below 50 ℃
·Optional brass/plastic meter body

·Pre-programmable low-credit warning
·Flexible setting of tariff & debt collection
·Wet/dry dial（optional） register construction
·Recharging by inputting 20-digit token with keypad

Metrological Parameters

DN		mm	15	20	25	32	40	50
Size		Inch	1/2"	3/4"	1"	1-1/4"	1-1/2"	2
Q4 Permanent flow		m³/h	3.125	5	7.875	12.5	20	31.25
Q3 Overload flow		m³/h	2.5	4	6.3	10	16	25
R80 Q3/Q1	Q2	m³/h	0.05	0.08	0.126	0.2	0.32	0.5
R80 Q3/Q1	Q1	m³/h	0.031	0.05	0.079	0.125	0.2	0.312
R100 Q3/Q1	Q2	m³/h	0.04	0.064	0.1	0.16	0.256	0.4
R100 Q3/Q1	Q1	m³/h	0.025	0.04	0.063	0.1	0.16	0.25
R125 Q3/Q1	Q2	m³/h	0.032	0.051	0.081	0.128	0.2	0.32
R125 Q3/Q1	Q1	m³/h	0.02	0.032	0.05	0.08	0.128	0.2
Max pressure		Bar	16
Pressure loss		Bar	0.63 (as complete unit)
Max temperature		℃	50
Max reading		m³	99999
Max permissible error(MPE)		%	Q1≦Q≦Q2: MPE = ±5% Q2≦Q≦Q4: MPE = ±2%

Dimension

Size mm DN in	15 1/2"	30 3/4"	25 1“	32 1-1/4”	40 1-1/2“	50 2”
Length(L)	165/190	190	225/260	230/260	245/300	280/300
Width(W)	99	99	103	104	124	125
Height(H)	104	106	114	117	147	172
Connecting thread	G3/4B	G1B	G1-1/4B	G1-1/2B	G2B	G2-1/2B	Flange ISO7005