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L&W Felt Permeability Meter

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L&W Felt Permeability Meter measures water permeability of the press felts. The instrument also measures felt length as well as giving measurements positions in relation to the machine width. It can be used for optimizing the conditioning system as well as for quick trouble shooting.

By measuring the water permeability, clogging and wear are easily discovered, and the potential to optimize the pressing with regards to paper quality and dewatering is made possible. L&W Felt Permeability Meter provides you with the best possible knowledge about the condition of the press felts. This enables you to optimize dewatering and reduce costs significantly.



  • Reduce energy consumption
  • Balance chemical usage
  • Reduce emissions
  • Reduce wear and maintenance requirements
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