Zenner WI-N Woltman Tangential Paddle Wheel 80mm Table D Flanged Water Meter

80mm Woltman tangential paddle wheel water meter with Table D flanged connections, robust cast iron housing, dry-dial register and 16 bar maximum operating pressure.

The Zenner WI-N 80mm Woltman Water Meter is designed for reliable measurement in demanding applications where water may contain significant levels of suspended particles or contamination. It is particularly suited to agricultural irrigation, bore water, sewage treatment plants, wastewater systems and raw-water applications.

Its Woltman measuring mechanism is positioned in the upper section of the pipe, where there are generally fewer suspended particles in the flowing water. This design allows the meter to operate reliably with water containing up to approximately 30% impurities. Where water is heavily contaminated, Zenner recommends installing an external filter upstream of the meter.

The robust cast iron meter body incorporates a removable measuring insert for straightforward inspection and maintenance. Its completely encapsulated mechanical dry-dial register helps protect the counter from dirt and harsh operating conditions. The meter is suitable for both horizontal and vertical installation.

The 80mm model has a nominal flow rate of 90,000L/h, a minimum flow rate of 4,800L/h, a maximum continuous flow rate of 120,000L/h and a short-term maximum flow rate of 150,000L/h. The meter is designed for cold water up to 50°C and has a maximum operating pressure of 16 bar (1,600kPa).

A reed pulser can be retrofitted to the meter without damaging the calibration seal, allowing connection to compatible monitoring equipment, data loggers, remote displays and control systems. For WI-N meters from DN40 to DN125, the standard pulser value is 100L per pulse, with alternative pulse values available on request.

Key features

• Woltman tangential paddle wheel measurement technology
  
• Designed for polluted, raw and contaminated water
  
• 80mm nominal diameter
  
• Table D flanged connection
  
• Robust cast iron housing
  
• Removable measuring insert for easy maintenance
  
• Completely encapsulated mechanical dry-dial register
  
• Suitable for horizontal or vertical installation
  
• Nominal flow rate of 90,000L/h
  
• Maximum continuous flow rate of 120,000L/h
  
• Short-term maximum flow rate of 150,000L/h
  
• Maximum operating pressure of 16 bar
  
• Maximum water temperature of 50°C
  
• Class A measuring accuracy
  
• Optional retrofittable reed pulser
  
• Standard 100L per pulse output when fitted with reed pulser