Zenner WI-N Woltman Turbine Impeller 400mm Table E Flanged Water Meter

400mm Woltman turbine impeller water meter with Table E flanged connections, robust cast iron housing, encapsulated dry-dial register and 16 bar maximum operating pressure.

The Zenner WI-N 400mm 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 insert 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 polluted water and water containing up to approximately 30% impurities. Where water is heavily contaminated, an external filter can be installed upstream of the meter.

The robust cast iron meter body incorporates a removable measuring insert for straightforward inspection and maintenance. Its completely encapsulated mechanical register helps protect the counter from dirt and harsh operating conditions. The meter is suitable for horizontal and vertical installation and is designed for cold water applications up to 50°C.

The 400mm WI-N is designed for high-volume water measurement in large agricultural irrigation, raw-water, wastewater and industrial systems. The available Zenner Woltman data lists the DN400 configuration with a nominal flow rate of 1,600,000L/h and a maximum flow rate of 2,000,000L/h. The minimum flow rate is 20,000L/h.

A reed pulser can be retrofitted without damaging the calibration seal, allowing the meter to connect to compatible monitoring equipment, data loggers, remote displays, irrigation controllers and control systems. For DN400–DN500 Woltman meters, the standard pulse value is 10,000L per pulse, with other pulse values available on request.

Key features

• Woltman turbine impeller measurement technology
  
• Designed for polluted, raw and contaminated water
  
• 400mm nominal diameter
  
• Table E 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 1,600,000L/h
  
• Maximum flow rate of 2,000,000L/h
  
• Minimum flow rate of 20,000L/h
  
• Maximum operating pressure of 16 bar
  
• Maximum water temperature of 50°C
  
• Class A measuring accuracy
  
• Optional retrofittable reed pulser
  
• Standard 10,000L per pulse output for DN400–DN500 configurations