LoVac Units

Application

JohnsonFoils offers two styles of Low Vacuum systems, OrthoFlo® and DuoFlo®. Both systems are designed to remove large quantities of water with a relativly low vacuum pressure.

OrthoFlo®

OrthoFlo® with Single End Discharge

OrthoFlo® with W-Leg (Bottom) Discharge

Description

The OrthoFlo® is a sealed low vacuum augmented drainage unit designed to handle large flow rates. It is customarily used after sheet forming is complete.

Features

  • Available in standard (5, 7, 9, 11, 13) blade configurations or any special combination
  • Choose from many blade material compositions
  • Individually adjustable Endura UHMW polyethylene deckles
  • Blades have 0° surface for maximum control of drainage energy and maximum retention of fiber

Cover Features

  • Available in high flow capacity integral trap bottom discharge, or high vacuum capacity end discharge designs
  • Choose from many blade material compositions Endura UHMW Polyethylene or Ceramic)
  • Individually adjustable Endura UHMW polyethylene deckles
  • Blades have 0° surface for maximum control of drainage energy and maximum retention of fiber
  • Available in high flow capacity integral trap bottom discharge, or high vacuum capacity end discharge designs
  • JohnsonFoils patented T-bars are mounted on full length, precision machined bearer bars for even, “streak-free” dewatering
  • Adjustable stationary or shake mounts
  • Custom designed for all machine widths and speeds
  • All 316L stainless steel construction
  • Vacuum/bleed connection on each end
  • 2″ (50.8 mm) bleed valve included
  • 1/2″ (12.7 mm) NPT gage/manometer connection on each end

Optional Accessories

  • Autovac® HD-L for accurate control of vacuum settings
  • JohnsonFoils manometer graphically displays vacuum schedule
  • Air/water separator for bottom discharge units
  • Blower systems with vacuum piping
  • Permanent gamma gage mounting on unit

DuoFlo®

DuoFlo® Unit

OrthoFlo® Cover

Description

The DuoFlo® is a dual chambered Vacuum Augmented drainage unit commonly used at the end of the lovac section to dry the sheet to wetline or dryline consistency, depending on the grade.

Features

  • Available in standard (5, 7, 9, 11, 13) blade configurations or any special combination
  • Choose from many blade material compositions (Endura UHMW Polyethylene or Ceramic)
  • Individually adjustable Endura UHMW polyethylene deckles
  • Two separate LoVac chambers in one unit for (2) vacuum level settings
  • End discharge for high differential pressure capability
  • JohnsonFoils patented T-bars are mounted on full length, precision machined bearer bars for even, "streak-free" dewatering"
  • Vertically adjustable mounts included
  • Custom designed for all machine widths and speeds
  • Stainless construction
  • 2" (50.8 mm) bleed valve included on tending side
  • 1/2" (12.7 mm) NPT gage/manometer connection on each end

Optional Accessories

  • AutoVac® HD-L for accurate control of vacuum settings
  • JohnsonFoils manometer graphically displays vacuum schedule
  • Blower systems with vacuum piping
  • Permanent gamma gage mounting on unit