2657 Manually Operated Ball Valve

2/2- and 3/2-way ball valves with manual override in plastic for separating medium flow. Different body versions and materials can be ordered to suit various applications. Special feature: The ball valves are equipped with the so-called Dual Block® Technology. This system serves as a safety device for the union nuts. It prevents that the installed valve becomes loose during the operation.


  • Application for aggressive media
  • High flow-rate
  • Safe blocked union nuts with Dual Block® Technology