L&W FeltScan Permeability

Optimize the press section with industry-leading felt permeability measurement

Accurate measurement of felt status is imperative for not only a cost-effective and efficient felt condi-tioning program, but also for maximizing machine runnability—and profitability.

L&W FeltScan Permeability provides paper mills, felt and chemical suppliers industry-standard results for felt permeability measurement. By measuring the water permeability of the felts, clogging and wear are easily discovered and the potential to optimize conditioning, dewatering, as well as paper quality is possible. As a result, suppliers can provide more precise recommendations and paper mills can extend and optimize performance.

Felt Permeability uncovers:

Felt compation due to press conditions
Felt wear
Shower performance (HP, Chemical, Lube, etc.)
Chemical cleaning program optimization
Tradeline distortion
New felt design opportunities

Did you know that a 1% increase of the dry content in the press section = 4% reduction in energy use in the dryer section?

The instrument uses rugged, high quality flow and pressure sensors to deliver accurate, repeatable permeability measurements in demanding mill environments. On device tools streamline workflows: apply recording delay and threshold for consistent starts, use diagnostics and FFT to identify patterns and issues, and compare multiple recordings directly on the unit for fast, data driven decisions.

Features

Accurate, repeatable measurement with traceable digital records
Modern, rugged design with intuitive touchscreen, tilted display, and 360° status LED
Smart on-device tools: trimming and comparison, recording delay/threshold, diagnostics, and FFT for pattern detection

Benefits

Overcomes high energy costs in the dryer section
Improves planning for shutdowns, while also reducing unplanned ones
Helps maximize machine speed
Optimizes felt conditioning with optimum levels of vacuum, chemical dosage, and high pressure water
consumption
Helps achieve the best overall felt lifecycle performance
Improves paper quality and reduces sheet breaks
Enables more informed troubleshooting