Application
Hivac units are typically applied at or just after the wetline/dryline, depending on grade, to maximize sheet consistency before the couch. There are other hivac specialty applications such as sheet transfer, and secondary sheet lay-down, using curved as well as flat cover configurations.

Features

• All 316L stainless steel construction
• Designed to accept ceramic slotted covers on a fully machined surface
• All types of standard ceramic covers can be fitted
• Designed to withstand negative pressure in excess of 20" Hg (67.54 kPa)
• Standard drum type or custom rectangular air/water separators available for all units
• Custom built to suit all machine widths, speeds and grades
• All units equipped with:
  
  • Custom mounting assemblies
    
  • 1/2" (12.7 mm) vacuum gage/manometer connections on tend and drive sides
    
• Available as single chamber or multichamber units:
  
  • DUOVAC® -- 2 chambers
    
  • TRIVAC® -- 3 chambers
    
  • QUADRIVAC -- 4 chambers
    
  • QUINTIVAC-- 5 chambers
    
• Multichamber units offer greater machine direction compactness, improved sheet drying efficiency, and continuous coverage under steamhoods
  
• Custom curved covers can be built to suit lead-in box or transfer box applications
  
• Flat or curved covers available to accept secondary deliveries on multi-ply applications
  
• Custom Super Hivacs available for suction couch replacement or other special applications