Woltman Water Meter With Positive Displacement and pulse emitter for irrigation hydrometer
This type of water meter also can be used for a remote reading transmission system as equipped with a built-in sensor.
APPLICATION: To totalize the total volume of cold (hot) water passing through the pipeline.
WORKING CONDITION:
- The max.admissible water pressure: 1.0MPa OR 1.6MPa.
- Water temperature: 0.1℃~50℃ for cold water ; 0.1℃~90℃ for hot water.
FEATURES:
- Removable element structure, it is easy for installation and maintenance, register for universal use within this range detachable without Removing the meter from the pipeline;
- Dry-dial, Magnetic drive sensitive action, small pressure loss;
- Vacuum sealed register ensures the dial keeps free from fog and keeps the reading clear in a long term service;
- Selected high quality materials for steady & reliable characteristic;
- It can measure dirty water. The universality of the measuring mechanism is great.
- Negotiability ability is wide. Accuracy in measurement is exact.
MAXIMUM PERMISSIBLE ERROR: - From transitional flow up to maximum flow both inclusive:±2% for cold water;
: ±3% for hot water. - From minimum flow inclusive up to transitional flow: ±5%.
FLOW-ERROR CURVE PRESURE LOSS-ERROR CURVE
DIMENSIONS AND WEIGHTS
| Size | Length L | Width B | Height H | Connecting Flange | Weight |
Outer Diameter D1 | Bolt Circle Diameter D2 | Connecting Bolt n-Md |
| mm | kg |
| 50 | 200 | 165 | 268 | 165 | 125 | 4-M16 | 11 |
| 65 | 200 | 185 | 279.5 | 185 | 145 | 4-M16 | 14 |
| 80 | 225 | 200 | 296 | 200 | 160 | 8-M16 | 16 |
| 100 | 250 | 220 | 307 | 220 | 180 | 8-M16 | 19 |
| 125 | 250 | 250 | 322 | 250 | 210 | 8-M16 | 25 |
| 150 | 300 | 285 | 351 | 285 | 240 | 8-M20 | 28 |
| 200 | 350 | 340 | 394 | 340 | 295 | 1.0MPa 8-M20 | 48 |
| 1.6MPa 12-M20 | 47.5 |
| 250 | 400 | 395 | 441 | 395 | 350 | 1.0MPa 12-M20 | 71 |
| 450 | 405 | 446 | 405 | 355 | 1.6MPa 12-M24 | 76 |
| 300 | 450 | 445 | 491 | 445 | 400 | 1.0MPa 12-M20 | 80 |
| 500 | 460 | 496 | 460 | 410 | 1.6MPa 12-M24 | 85 |
MAIN TECHNICAL DATA
Size mm | CLASS | Maximum flow | Nominal flow | Transitional flow | Minimum Flow | Minimum Reading | Maximum Reading |
| m3/h | m3 |
| 50 | A | 30 | 15 | 4.5 | 1.2 | 0.001 | 999999 |
| 65 | A | 50 | 25 | 7.5 | 2 | 0.001 | 999999 |
| 80 | A | 80 | 40 | 12 | 3.2 | 0.001 | 999999 |
| 100 | A | 120 | 60 | 18 | 4.8 | 0.001 | 999999 |
| 125 | A | 200 | 100 | 30 | 8 | 0.001 | 999999 |
| 150 | A | 300 | 150 | 45 | 12 | 0.01 | 9999999 |
| 200 | A | 500 | 250 | 75 | 20 | 0.01 | 9999999 |
| 250 | A | 800 | 400 | 120 | 32 | 0.01 | 9999999 |
| 300 | A | 1200 | 600 | 180 | 48 | 0.01 | 9999999 |
BOUNDARY DIMENSION

Competitive Advantage:
- Compliance to international standards: ISO4064 / GBT778 / Q/320700JR05-2003
- Strict process control
- Advanced calibration equipment
- Engineer team
Production line

Base water meter
