Compound water meter with spring valve MWN/JS

Accuracy class MID

cold water R 630 ÷ 4000 – H

Instalation of the side water meter

Standard execution- right side looking in the way of the flow

On request – left side looking in the way of the flow
 

Basic technical characteristics

  Parameter

 

 

 

 

MWN/JS  50/4,0-S

MWN/JS 65/4,0-S

MWN/JS 80/4,0-S

MWN/JS 100/4,0-S

  Size

 

DN

mm

50

65

80

100

  Nominal flow rate

 

Q3

m3/h

25

40

63

100

  Maximum flow rate

 

Q4

m3/h

31,25

50

78,75

125

  Transitional flow rate

 

Q2

m3/h

0,064

0,064

0,064

0,064

  Minimum flow rate

 

Q1

m3/h

0,04

0,04

0,04

0,04

  Start flow

m3/h

0,015

0,015

0,015

0,015

  Change-over flowrate when flow stops

QX1

m3/h

1,3

2

2

1,6

  Change-over flowrate when flow starts

QX2

m3/h

2,6

2,8

2,8

2,7

  Measuring range R

 

Q3/Q1

630

1000

1600

2500

  Ratio

 

 

Q2/Q1

1,6

 

 

 

  Range of errors

ε

%

 

±5%

(Q1≤Q≤Q2)

 

 

 

 

 

 

 

±2

(Q2≤Q≤Q4)

0,1≤T≤30°C

 

 

 

 

 

 

±3

(Q2≤Q≤Q4)

T>30°C

  Heat class

 

T

°C

T3, T50

 

 

 

  Highest allowed pressure

 

Pmax

MAP16=(16bar)

 

 

 

  Range of operating pressure

 

bar

od 0,3 do 16

 

 

 

  Maximum pressure loss

 

 

kPa

ΔP63=(0,63bar)

 

 

 

  Operating orientation

 

-

-

H

 

 

 

  Range of indication

 

m3

106 / 105

 

 

 

  Accuracy of indication

 

m3

0,5 / 0,05

 

 

 

 

 

 

L

mm

270        300*

300

300             350*

360              350*

 

 

 

H                  H1

mm

180            190

190       200

212                222

222           232

 

 

 

h

mm

72

83

95

105

 

 

 

S

mm

280

300

310

340

 

 

 

b

mm

95

104

110

125

 Weight

 

 

MWN/JS

kg

17,6

21,1

25,1

30,1



Features and advantages

  • Mutual overlap of the measuring ranges of the main and side water meters
  • Wide measuring range- from the minimum flow rate of the side water meter to maximum flow rate of the main water meter
  • Automatic switch spring valve, which depending on the flow rate, directs the water flow through the main or side water meter
  • Low starting flow rate
  • Double sided axle bearing
  • Ability to equip with the pressure gauge
  • Hermetic counters, IP68 optional for the main water meter
  • Counter mechanism with blockade against multiple rotating
  • Indications reliability

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