This series of water meters are rotor multi beam water meters. The movement dial is full of water meters. It is composed of meter case, middle cover, meter glass, sealing washer, metering mechanism, counting mechanism and water filter network. After the water flow impinges on the impeller, the impeller starts to rotate, and the number of turns is accumulated through the counting mechanism, and the water flow through the water meter is recorded and displayed.
Product use
This series of water meters are used to record the consumption of tap water and domestic hot water in a household or a residential unit.
Product characteristics
This type of water meter adopts the combination counting device of pointer and wheel. It has the characteristics of advanced structure, intuitive reading, elegant appearance, high sensitivity, small starting flow, reliable operation, accurate measurement, etc. it is suitable for domestic water supply network management. This series of water meters adopts special wear-resistant materials, and the error trend is gradually positive, which can avoid water cost loss.
Design standard
GB / t778.1-3-2007 measurement of water flow in closed pipeline full pipe drinking cold water meter and hot water meter
Jjg162-2009 verification regulation of cold water meter
Rated working conditions
Flow range: q1-q3
Ambient temperature: 5 ° c-55 ° C
Ambient humidity: (0 ~ 100)% RH
Water temperature: cold water T30 ° C (0.1 ℃ ~ 30 ℃) hot water T90 ° C (30 ℃ ~ 90 ℃)
Water pressure: 0.03mpa ~ 1.0MPa (1.6Mpa in case of special needs)
Water quality: tap water, direct drinking water, domestic hot water
Product technical parameters
number Parameter name Parameter description 01 caliber DN15∽DN40（Rotor wet） 02 Body Ductile iron 03 Pressure grade MAP10/1.6MPa(Such as special needs） 04 Working pressure 0.03MPa∽1.0MPa 05 Pressure loss level △P63 06 Temperature class T30/T90 07 ambient temperature 5℃∽55℃ 08 Ambient humidity （0∽100）%RH 11 Protection level IP68 12 Flow direction Forward 13 Storage temperature （-40～60）℃ 14 Minimum display range DN15-25:0.00005m3， DN32-40:0.0005m3 15 Maximum display range DN15-25:9,999m3， DN32-40:99,999m3 16 Sensitivity level U10 D5
流量参数
Model Nominal diameter Q3/Q1 overload flow-rate Q4 in common use flow-rate Q3 line of demarcation flow-rate Q2 smallest flow-rate Q1 Minimum reading Min Maximum reading Max mm (m3/h) (L/h) m3 LXS-15E 15 100 3.125 2.5 40 25 0.00005 9,999 LXS-20E 20 100 5 4 64 40 LXS-25E 25 100 7.875 6.3 100.8 63 LXS-32E 32 100 7.875 6.3 100.8 63 LXS-40E 40 100 20 16 256 160 0.0005 99,999
Note: the range ratio of this series of water meters is r = 80 / 100 / 125 / 160 / 200.
Indication error limitThe accuracy level of this series of water meters is level 2. In the range of water temperature from 0.3 ° C to 30 ° C, the maximum allowable error of water meters is ± 2% in the high area (Q2 ≤ Q ≤ Q4) and ± 5% in the low area (Q1 ≤ Q < Q2). When the water temperature exceeds 30 ° C, the maximum allowable error of the water meter in the high zone is ± 3%.
Appearance and installation dimension (horizontal installation)
|
Nominal diameter (DN) |
Long （L1） |
Long （L） |
Board （B） |
Height (H) |
Connecting thread |
|
|
mm |
mm |
D |
d |
|||
|
15 |
258 |
165 |
99 |
104 |
G3/4B |
R1/2 |
|
20 |
299 |
195 |
99 |
106 |
G1B |
R3/4 |
|
25 |
345 |
225 |
104 |
112 |
G11/4B |
R1 |
|
32 |
354 |
230 |
104 |
117 |
G11/2B |
R11/4 |
|
40 |
373 |
245 |
125 |
147 |
G2B |
R11/2 |
Appearance and installation dimension (vertical installation)
|
Nominal diameter |
H1 |
H2 |
H3 |
H4 |
L |
Connecting thread |
|
|
mm |
mm |
D |
d |
||||
|
15 |
190 |
96 |
119 |
107 |
146 |
G3/4B |
R1/2 |
|
20 |
204 |
100 |
122 |
108 |
162 |
G1B |
R3/4 |
|
25 |
227 |
108 |
128 |
115 |
170 |
G11/4B |
R1 |
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