Sludge regulation for centrifuge feeding
Three Iris® Diaphragm Control Valves with actuators are used to feed the centrifuges of the thermal power plant North. The sewage sludge with a dry substance content of 5 % is precisely conveyed into the centrifuges at an inlet pressure of max. 2 bar with the help of the Iris® valves. The Iris® control valves are characterized by a free passage cross-section, as the six segments can be retracted completely out of the housing and there are no obstruction components in the flow axis. Furthermore, the unique centric flow profile enables a very precise and energetically optimized process control.
Detailed information
- 3 x BS DN 100 E (4‘‘)
- Chemical neutral sludge with 5 % dry substance
- Upstream pressure max 2 bar (29 psi)
- Temperature up to 50 °C (122 °F)
Construction:
- Valve body: cast iron
- Segments: bronze
- O-Rings: NBR
The three DN 100 (4’’) diaphragm control valves have been in operation without failure since the beginning of 2001.
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