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Bulk water meters

Meistream

Groswasserzaehler Woltman Verbund Meistream

Product categories

Water

Water

Drinking Water

Mechanical

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 high flow rates, e.g.
    - Downstream of pumps or at transfer points
    - Reservoir inflows and outflows
    - Industrial processes
  • 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-pressure series up to PN 40 bar
  • 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

Properties

  • Universal installation position
  • No straight flow section required before the meter
  • Register can be turned through 355°
  • Maximum operating pressure PN 16 bar
  • Temperature up to 50 °C
  • Rotor is hydrodynamically, radially, and axially balanced
  • Available in the standard installation lengths for WS and WP meter
  • Powder coating provides optimum corrosion protection
  • Non-ferrous metal design up to PN 16 bar
  • 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 80 100 100 125 150 150 200 250 300
Nominal pressure2) PN bar 16 16 16 16 16 16 16 16 16 16 16 16 16 16
Nominal flow rate Q3 m3 /h 50 50 70 70 120 120 230 230 250 450 450 800 1250 1400
Overload flow rate (few minutes) Q4 m3 /h 90 90 120 120 200 200 300 300 350 600 600 1200 1600 2000
Transitional flow rate ±2% Q2 m3 /h 0,4 0,4 0,63 0,63 0,51 0,51 0,81 0,81 1,02 1,6 1,6 4,03 6,3 16
Minimum flow rate ±5% Q1 m3 /h 0,15 0,15 0,2 0,2 0,2 0,2 0,3 0,3 0,5 0,8 0,8 2 3,5 9
Temperature max.°C 50 50 50 50 50 50 50 50 50 50 50 50 50 50
Dimensions and weights
Overall length L mm 200 270 3) 200 300 225 300 250 360 250 300 500 350 450 500
Height 4) H mm 120 120 120 120 150 150 150 150 160 177 177 214 238 264
Height h mm 73 73 85 85 95 95 105 105 118 135 135 162 194 226
Dismantling height of measuring unit4) g mm 200 200 200 200 270 270 270 270 280 356 356 449 474 499
Meter weight app. kg 7,8 9,6 10,1 12 14,2 16,3 18,2 20,2 20,7 35,9 35,9 56,9 79,4 103,8
Measuring unit weight app. kg 1,5 1,5 1,5 1,5 3,2 3,2 3,2 3,2 3,2 5,9 5,9 9,6 9,6 9,6
Body weight app. kg 6,3 8,1 8,6 10,5 11 13,1 15,0 17,0 17,5 30 30 47,3 69,8 94,2

1) Nominal size DN 40 upon request
2) High-pressure series PN 40 upon request
3) Also available with 300 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 40 40 63 63 100 100 160 160 160 400 400 630 630 1000
Temperature max.°C 50 50 50 50 50 50 50 50 50 50 50 50 50 50
Horizontal measuring range R160 R160 R160 R160 R315 R315 R315 R315 R250 R400 R400 R250 R125 R63
Vertical measuring range R100 R100 R100 R100 R125 R125 R160 R160 R125 R200 R200 R250 R100 R63
Standard marking R100 R100 R100 R100 R100 R100 R100 R100 R100 R100 R100 R100 R100 R63

Dimension Diagram


Meistream E Pf10220 2ffff

Materials


Body: Cast iron

Measuring unit: Plastic

Rotor: Plastic

Other materials: Brass / non-rusting steel

Measurement error curve


E Pd10220 Messfehlerkurve EN

Typical Head Loss Curve


E Pd10220 Druckverlustkurve EN

Installation


Pipeline: horizontal iconHorizontalLine
vertical iconVerticalLine
diagonal iconDiagonal
Meter head: upwards iconArrowToTop
sideways iconArrowLeftRight

Commission


attentionTriangle

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

Dial


1 Meistream Standardzählwerk E Pd10220 3
Nominal size DN 50–125 150 – 300
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...125 1 Pulse = ...Liter DN 150...300 1 Pulse = ...Liter
Meistream 10 100 100 1000

Pulse values Opto-OD-Pulser


Meter sizes DN 50...125 1 Pulse = ...Liter DN 150...300 1 Pulse = ...Liter
Meistream Opto OD 01 Opto OD 03 1 10 10 100

Enquire

Last updated: 06.05.2024
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