Woltman meter
WPD FS
Product categories
Water
Woltman meter for hot water up to 130 °C
Water
Drinking Water
Mechanical
Smart Building
Your benefits
- Robust, high grade wear resistant materials:
Excellent measuring stability and reliability
Applications
- Measurement of high, relatively constant flow rates
- As volume measuring part for heat calculation the meter is suitable for installation in central and district heating applications
- Heat and/or cooling consumption measurement in the building technology sector
Options
- Non-ferrous metal design for 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
Properties
- Universal installation position
- Straight flow section 3xDN
- Register can be turned through 355°
- Maximum operating pressure PN 16 bar
- Temperature up to 130 °C
- Rotor is hydrodynamically balanced
- Symmetrical calibration ring
- Powder coating provides optimum corrosion protection
Conformity according to European Measuring Instruments Directive (MID)- Flood proof standard pulser register (IP68) with ports for two Reed-RD-Pulsers and one Opto-OD-Pulser
- Accuracy class 3
Product information
Technical Data
| Execution | WPD FS | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Nominal diameter | DN | mm | 50 | 50 | 65 | 65 | 80 | 80 | 100 | 100 | 125 | 150 | 150 |
| Operating pressure | PN | bar | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 |
| Nominal flow rate | qp | m3/h | 15 | 15 | 25 | 25 | 40 | 40 | 60 | 60 | 100 | 150 | 150 |
| Maximum flow rate | qs | m3/h | 30 | 30 | 50 | 50 | 80 | 80 | 120 | 120 | 200 | 300 | 300 |
| Minimum flow rate ±5% | qi | m3/h | 1,5 | 1,5 | 2,5 | 2,5 | 4 | 4 | 6 | 6 | 10 | 15 | 15 |
| Starting flow | app.m3/h | 0,25 | 0,25 | 0,3 | 0,3 | 0,35 | 0,35 | 0,6 | 0,6 | 1,1 | 1,7 | 1,7 | |
| Kvs-value | m3/h | 110 | 110 | 110 | 110 | 340 | 340 | 380 | 380 | 520 | 810 | 810 | |
| Operating temperature range | max.°C | 10…130 | 10…130 | 10…130 | 10…130 | 10…130 | 10…130 | 10…130 | 10…130 | 10…130 | 10…130 | 10…130 | |
| Measuring range | qi/qp | 1:10 | 1:10 | 1:10 | 1:10 | 1:10 | 1:10 | 1:10 | 1:10 | 1:10 | 1:10 | 1:10 | |
| Dimensions and weights | WPD FS | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Length | L | mm | 200 | 270 | 200 | 300 | 225 | 300 | 250 | 360 | 250 | 300 | 500 |
| Height | H | mm | 120 | 120 | 120 | 120 | 150 | 150 | 150 | 150 | 160 | 177 | 177 |
| Height | h | mm | 73 | 73 | 85 | 85 | 95 | 95 | 105 | 105 | 118 | 135 | 135 |
| Weight | D | app. kg | 7,7 | 9,5 | 10 | 11,9 | 14 | 16,1 | 18 | 20 | 20,5 | 35,5 | 43,8 |
Dimension Diagram
Materials
| Body | Cast iron |
| Measuring unit | Plastic |
| Rotor | Plastic |
| Other materials | Brass / non-rusting steel |
Measuring error curve
Typical Head Loss Curve
Installation
| Pipeline: | horizontal |  |
| vertical |  | |
| Meter head: | upwards |  |
| sideways |  |
Installation requirements
3xDN straight pipe upstream of the meter. No abrupt restrictions directly downstream of the meter.
Pulse value table
| Pulse generator | Register type | DN 50…125 m3 | DN 150 m3 |
|---|---|---|---|
| Reed RD 02 | 4/10 | 0,25 and 0,1 | 2,5 and 1 |
| 4/40 | 0,25 and 0,025 | 2,5 and 0,25 | |
| Opto OD 02 | 4/10, 4/40 | 0,001 | 0,01 |
| Opto OD 04 | 4/10, 4/40 | 0,01 | 0,1 |
Dial
| Nominal diameter | DN | 50–125 | 150 |
| Smallest reading | m3 | 0,0005 | 0,005 |
| Maximum register reading | m3 | 1’000’000 | 10’000’000 |