Vent Tech Model SZG – Zero Pressure Sewage Valve

The Vent-Tech model SZG sewer valves are air release and vacuum break valves designed to provide surge protection and seal at zero hydraulic head (i.e. no reliance on a minimum pipeline pressure to achieve seal). If the HGL is expected to be consistently maintained above 3 psi then use a Model SWG valve, otherwise, we recommend specifying the SZG.

The Market Leader in Zero Pressure Flat Float Valve Designs!

  • Improved Air-Flow
  • Enhanced Wear Resistance
  • Zero psi Minimum Sealing
  • Protect Pipeline From Collapse Due To Vacuum
  • Maximize The Capacity of the Pipeline
  • Surge Protection
  • Column Separation Protection
  • Durable, Reliable, and Proven Design
  • Low Maintenance Stainless Steel Construction
  • Efficient, Effective, and High Value – Best in Class!
  • Preferred Valve of Top Civil Engineering Firms

Specs & Brochures