Flowzone Engineering Solution

Neles™ butterfly valve, series L12

The Neles Neldisc L12 series valve, equipped with a triple eccentric disc, is capable of operating in both control and shut-off applications. It provides nearly proportional flow characteristics and exceptional sealing capability.

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  • The valves are designed to minimize pressure loss and reduce energy costs in the process
  • They deliver consistent performance even in challenging and fluctuating process conditions
  • The valves offer industry-leading valve capacity
  • They are suitable for use in dirty and abrasive services


  • The valves have a triple offset design with a two-piece shaft
  • They feature a full metal sealing without any resilient parts in the pipeline, ensuring reliable sealing
  • These valves provide high and long-lasting tightness
  • They require minimized actuator torque, resulting in a smaller actuator and lower piping stress
  • The valves come equipped with in-built thermal and pressure compensation features


  • Pulp & paper
  • Power generation


Wafer type
Size range
DN 80 – 1400, 3″ – 56″
Pressure class
PN 10, 16, 25 and ANSI 150
Temperature range
-50 °C … +260 °C / -60 °F…+500 °F


  • Technical bulletin
  • Installation, maintenance and operation manual
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