BMJ 4
Threaded water meters for buildings with dry roller counter - BMJ 4
Designation: Designed for reporting hot and cold water of larger consumers: residential cooperatives, public establishments (institution, places) and small businesses. Water meters can be mounted on a horizontal section of the pipeline.
Metrological characteristics - Waser meters BМJ 4
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Index name |
ВМJ 4 /DN 20 |
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Permanent flowrate Q3, m3/h |
4 |
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Ratio Q3 / Q1 R |
50 |
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Minimum flowrate Q1, m3/h |
0,80 |
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Transitional flowrate Q2,m3/h Q2 / Q1 = 1,6 |
0,128 |
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Overload flowrate Q4, m3/h Q4/ Q3 = 1,25 |
5 |
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Installation: horizontal |
H |
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Nominal diameter DN, mm |
20 |
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Maximum Admissible working Pressure MAP, bar |
10 |
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Pressure looss ∆P, bar |
0,63 |
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Value of the verification interval , l |
0,05 |
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Indicating range, m3 |
99 999 |
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Temperature classe |
Т 30 |
Т90 |
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Measuring error, % Q1 < Q < Q2 Q2 < Q < Q4 |
+-5 +-2 |
+-5 +-3 |
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Sensitivity-straght lehgths |
U5 ; D5 |
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Mechanical clas |
M1 |
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Electromagnettc environments |
E1 |
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Environmental classification |
B |
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Length body L1, mm |
190 |
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Tread of the body, G “ |
G 1” |
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Tread of connectors, G “ |
G 3/4” |
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Length with connectors, mm |
290 |
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Width B, mm |
100 |
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Height H, mm |
105 |
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Weight, kg |
2,5 |
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2019-07-15 08:20:28 UTC