Zenner WI-N Woltman Tangential Paddle Wheel 200mm Table E Flanged Water Meter

200mm Woltman tangential paddle wheel water meter with Table E flanged connections, robust cast iron housing, dry-dial register and 16 bar maximum operating pressure.

The Zenner WI-N 200mm 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 tangential paddle-wheel measuring mechanism is positioned in the upper section of the meter body, 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, 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 dry-dial register helps protect the counter from dirt and harsh operating conditions. The meter is suitable for both horizontal and vertical installation.

The 200mm model has a minimum flow rate of 32,000L/h, a nominal flow rate of 450,000L/h, a maximum permanent flow rate of 800,000L/h and a short-term maximum flow rate of 900,000L/h. It is designed for cold water up to 50°C and has a maximum operating pressure of 16 bar (1,600kPa).

The DN200 model uses Table E flanged connections. A reed pulser can be retrofitted for connection to compatible monitoring equipment, data loggers, remote displays and control systems. For DN150 to DN300 WI-N meters, the standard pulser value is 1,000L per pulse, with alternative pulse values available on request.

Key features

• Woltman tangential paddle wheel measurement technology
  
• Designed for polluted, raw and contaminated water
  
• 200mm 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 450,000L/h
  
• Maximum permanent flow rate of 800,000L/h
  
• Short-term maximum flow rate of 900,000L/h
  
• Maximum operating pressure of 16 bar
  
• Maximum water temperature of 50°C
  
• Class A measuring accuracy
  
• Optional retrofittable reed pulser
  
• Standard 1,000L per pulse output when fitted with reed pulser