Product Description
Woltman Type Bulk Water Meters
200mm Woltman Type Flanged End Water Meter
Salient Features
Velocity type meter
Direct magnetic transmission
Class B ISO 4064
Superior accuracy and long-term reliability
Highly sensitive to low flow rate and very accurate over its entire flow range.
Low head loss.
Vacuum sealed. leak proof and dry Totaliser.
Maintenance-free long working life.
Technical Parameters
Nominal Diameter (DN) | Unit | Single-jet | Multi-jet |
mm | 15 | 20 | 15 | 20 | 25 | 40 | 50 |
Inches | 1/2 | 3/4 | 1/4 | 3/4 | 1 | 1 1/2 | 2 |
Starting Flow Rate | I/h | 14 | 18 | 14 | 18 | 25 | 70 | 80 |
Maximum Admissible Temp. | C | 45 C (Optional 90C) |
Maximum Admissible Working Pressure | bar (kg/cm3) | 10 |
Test Pressure - P | bar (kg/cm2) | 16 |
Qmax | Max. Peak flow +- 2% Accuracy | m3/hr | 3.0 | 5.0 | 3.0 | 5.0 | 7.0 | 20.0 | 30.0 |
Qn | Nominal flow +- 2% Accuracy | m3/hr | 1.5 | 2.5 | 1.5 | 2.5 | 3.5 | 10.0 | 15.0 |
Qt. | Transitional flow +-2% Accuracy | I /h | 120 | 200 | 120 | 200 | 280 | 800 | 1200 |
Qmin | Minimum flow +- 5% Accuracy | I / h | 30 | 50 | 30 | 50 | 70 | 200 | 300 |
Head Loss at | Qmax | m | 7.0 | 7.0 | 6.5 | 7.5 | 9.0 | 5.0 | 4.8 |
Qn | m | 1.7 | 1.8 | 1.7 | 1.9 | 2.3 | 1.3 | 1.2 |
Dimension |
Length (without Tail Pipes) | mm | | | 165 | 190 | 260 | 300 | 330 |
Length (with Tail Pipes) | mm | 250 | 290 | 250 | 290 | 380 | 430 | 470 |