HOBAS Pressure Release Shaft

In transition from wastewater pressure pipelines into gravity pipelines, shafts need to be installed to calm. Due to the high corrosion resistance a HOBAS pressure release shaft is the perfect solution.

  • Manhole  
  • Anti-flotation slab (either as GRP base plate or concrete)
  • Inlet with fixed flange
  • Outlet
  • Coupling on manhole pipe (for multi unit design)
  • Ladder
  • Manhole cover (accessories on request)



Physical Properties  
Nominal Diameter [DN] 1000 - 3600 mm