INHISA HIDRÁULICA S.A. developed Circular Flush Bottom Gate Valves® (VAP®) as gate valves for bottom outlets and dam and reservoir intakes as a logical evolution of the traditional flush bottom square and rectangular section gate valves.

The characteristics that mainly define this type of valves are a type of metal-metal seal which guarantees a highly durable sealing system (bronze-stainless steel on the front end perimeter and stainless steel-stainless steel on the bottom end) and the flush bottom (with no bottom groove), preventing the seal failures that are common in traditional gate valves (with groove).

The elements in circular Flush Bottom® gate valves are:

  • Shutter
  • Valve body
  • Bonnet
  • Drive cylinder
  • Position indicator
  • By-pass
  • Air adduction
  • Hydraulic power unit
  • Control desk, electrical command, control and signalling panel