- HDU electrically controlled non-return valve offers a certified UCM solution compliant with EN81-2 A3
- Permits no unintended car movement generally closed at landing position
- Integrated self-monitoring intelligence
- Redundancy by two valves in series
- No additional and complex controller software
- Applicable for advanced door opening and releveling
- Applicable for different hydraulic installations especially for retrofitting for several kind of products
- Easy and quick installation
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