The Ductile Iron Flanged Water Meter (Woltmann or turbine type) is designed for measuring high-volume water flow in municipal and industrial applications. Unlike residential small meters, this meter has a ductile iron body with integral flanges for direct connection to PN10/16 or ANSI Class 150 pipe flanges. Inside the meter, a multi-blade turbine rotor (helical or straight) spins at a speed proportional to flow velocity. Mechanical gears transmit rotation to a register that displays totalized volume (in cubic meters, gallons, or liters). Modern versions include a pulse transmitter for remote reading or SCADA integration. The meter measures flow accurately down to low flows (thanks to the turbine design) while maintaining very low pressure drop compared to a venturi or orifice plate.
Why Choose Us / Advantage
ISO 4064 / OIML R49 Certified: Meets international metering standards.
Verifiable Accuracy: Calibration certificates traceable to national standards.
Remote Reading Ready: Reed switch or inductive pulse output (1L/pulse to 1000L/pulse).
Low Flow Performance: Measures down to 2% of Qn (nominal flow).
Factory Calibrated: Each meter tested on a gravimetric flow bench before shipment.
Technical Data
★ Type Woltmann / Turbine Meter
★ Body Material Ductile Iron QT450 (epoxy coated)
★ Measuring Element Plastic / Stainless Steel rotor
★ Register Mechanical (8 digits) or Digital
★ Pulse Output Optional (hall effect or reed)
★ Accuracy ±2% (from Qmin to Qmax)
★ Pressure PN10 / PN16 / Class 150
★ Size Range DN50 – DN400
★ Connection Flanged (EN 1092-2 / ANSI B16.1)
Applications
● Water supply billing for industrial customers
● Factory water intake metering
● Apartment complex master meters
● Irrigation district water allocation
● Pump station flow monitoring
