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Combined butterfly/check valve with single-acting hydraulically controlled counterweight actuator. For mounting on valves with DN 500 to 1400.
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Main Applications

  • Water
  • Energy
  • Industry

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  • Absolutely reliable, gravity-powered closing system
  • Two-speed closing action prevents surge pressures.
  • Modular design


TitleFormatSizeLast change
2-page product description DUALIS (7474.021_EN)PDF0.194/19/2021