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- Flow-through direction available in ND 150 or ND 200
- Spindle gate valve in false floor installation, with removable handwheel extension
- Suction pressure from the container is exploited
- Alternatively with safety lid as a 3rd level damage protection
- Clean shafts not wetted by water or liquid manure, in which gate valves are installed
- Only one underground container is required on-site for the leakage manure (hose drainage outlet); for example 200 l plastic tank
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Side views of the filling and extraction connections 
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