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Bulk water meters

Meistream Plus

Groswasserzaehler Woltman Verbund Meistream Plus

Product categories

Water

Bulk water meters for cold water up to 50 °C DN 50, 65, 80, 100, 150

Water

Drinking Water

Mechanical

Wired

Impulse

Smart City

Your benefits

  • Measurement of low flow rates:
    Increased cost effectiveness
  • Removable measuring insert:
    Retrofittability and replaceability guaranteed
  • One measuring insert for various bodies:
    Lower storage costs

Applications

  • Measurement of medium to high flow rates
  • Measurement of low flow rates during offpeak periods
  • Measuring of
    - Desalinated / demineralized water
    - Caustic soda up to 20%
    - Saline water up to 10%
    - Chlorinated water up to 1%
    - Glycol-water solutions up to 30%
    - Caustic solutions up to pH value 9

Options

  • Flood-proof GWFcoder® register (IP68) with IEC or M-Bus interface and 5 m cable and provision for a HRI pulser
  • High-resolution pulse generator HRI-Mei
    Documentation: HRI-Mei - EPe10222
  • High-resolution pulse generator Opto OD
    Documentation: Opto-OD-Pulser - EPe10205
Groswasserzaehler Woltman Verbund Meistream Plus

Properties

  • Horizontal installation position
  • No straight flow section required before the meter
  • Register can be turned through 355°
  • Maximum operating pressure PN 16 bar
  • Temperatures up to 50 °C
  • Rotor is hydrodynamically, radially, and axially balanced
  • Available in the standard installation lengths for WS and WP meters
  • Powder coating provides optimum corrosion protection
  • Non-ferrous metal design
  • SVGW certification
  • Conformity according to the European Measuring Instrument Directive (MID)
  • Flood-proof standard pulser register (IP68) with a port for one Opto-OD-Pulser and provision for a HRI-Mei pulser

Technical Data


Nominal diameter1) DN mm 50 50 65 65 80 80 100 100 150
Nominal pressure PN bar 16 16 16 16 16 16 16 16 16
Nominal flow rate Q3 m3/h 35 35 40 40 63 63 100 100 250
Overload flow rate (few minutes) Q4 m3/h 55 55 60 60 120 120 160 160 400
Transitional flow rate ±2% Q2 m3/h 0,13 0,13 0,16 0,16 0,25 0,25 0,4 0,4 0,63
Minimum flow rate ±5% Q1 m3/h 0,07 0,07 0,1 0,1 0,13 0,13 0,2 0,2 0,35
Temperature max.°C 50 50 50 50 50 50 50 50 50
Dimensions and weights
Overall length L mm 200 2702) 200 300 225 300 250 360 3003)
Height4) H mm 120 120 120 120 150 150 150 150 177
Height h mm 73 73 85 85 95 95 105 105 135
Dismantlig height of measuring unit 4) g mm 200 200 200 200 270 270 270 270 356
Meter weight app. kg 7,8 9,6 10,1 12 14,2 16,3 18,2 20,2 35,9
Measuring insert weight app. kg 1,5 1,5 1,5 1,5 3,2 3,2 3,2 3,2 5,9
Body weight app. kg 6.3 8,1 8,6 10,5 11 13,1 15 17 30

1) Nominal size DN 40 upon request
2) Also available with 300 mm body length
3) Also available with 500 mm body length
4) The dimension g and H increase by 22 mm if a HRI-Mei impulse generator and cover are installed

MID certification data
Nominal flow rate Q3 m3/h 25 25 40 40 63 63 100 100 250
Temperature max.°C 50 50 50 50 50 50 50 50 50
Measuring range R315 R315 R400 R400 R400 R400 R400 R400 R630
Standard marking R315 R315 R315 R315 R315 R315 R315 R315 R315

Dimension Diagram


Meistream Plus Standardzählwerk E Pd10221 2

Materials


Body: Cast iron
Measuring insert: Plastic
Rotor: Plastic
Other materials: Brass / non-rusting steel

Measurement error curve


Meistream Plus E Pe10221 3en

Typical Head Loss Curve


Meistream Plus E Pe10221 3enn

Installation


Pipeline: horizontal iconHorizontalLine
Meter head: upwards iconArrowToTop

Commission


attentionTriangle

When commissioning the meter the measuring section must be filled slowly (bleed slowly).

Dial


Meistream Plus Standardzählwerk E Pd10221 6
Nominal size DN 50–100 150
Smallest reading m3 0,0005 0,005
Maximum register reading m3 1’000’000 10’000’000

Pulse values HRI-Mei Pulser


Meter sizes DN 50...100 1 Pulse = ...Liter DN 150 1 Pulse = ...Liter
Meistream Plus 10 100 100 1000

Pulse values Opto-OD-Pulser


Meter sizes DN 50...100 1 Pulse = ...Liter DN 150 1 Pulse = ...Liter
Meistream Plus Opto OD 01 Opto OD 03 1 10 10 100

Enquire

Last updated: 06.05.2024
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