The Woltmann water flow meter WMAP type is an axial helix (the axis of the helix is coaxial to the axis of the pipe) . The magnetically driven register operates in a dry compartment and the helix is submerged in water. Readability is ensured by the tempered mineral glass lens: its flat and smooth surface, unlike plastic lenses, is scratch-resistant and does not turn opaque.
Woltmann irrigation water meters are ideal for sub/secondary billing for domestic applications, batch control and also for water monitoring in industrial/commercial applications, borehole and irrigation. It has working pressure up to 16bar, can be used in cold water up to 50⁰C and is available in 2” (50mm) and 6” (150mm) sizes.
Specifications;
- Tempered mineral glass lens with adequate thickness
- The counter is housed in a dry compartment which has no contact with the water ensuring continued readability
- Straight reading on 7 numbered drums for the cubic meters and 2 fractional dials for submultiples.
- The MID inscriptions are on a metallic label applied on a meter's flange
- Metallic lockable lid
- Pulsed meters maintain the metrological seal and protected by cover
- No upstream (use of flow straighteners) and downstream straight pipe requirements
- Hydraulic tests are carried out at three flow rates (Q1, Q2, Q3) on 100% of the production. Out testing benches comply with standards ISO 4064/3 and ISO 4185 (EN 14154/3) and are approved by a European notified body
- Cast iron flanged body; internal and external epoxy powder costing
- Steel pivot, synthetic sapphire bearing
- Internal mechanism made of anhygroscopic, anti-scaling and hard-wearing plastic materials
- Maximum water temperature: 50ºC
- Nominal pressure (PN): 10 or 16 bar
Installation Recommendations:
To maintain the accuracy of readings the minimum straight lengths of pipe, before and after the meter, should be 10 times and 5 times the internal pipe diameter, respectively.
If you require certification for the meter, please contact us to discuss your requirements further.
