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Model HMC-ALT - Altitude Control Valve

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This valve controls water level in high level reservoirs to avoid overflow, without any external control system like float control etc. The valve remains completely open until the closing input is transmitted by the 3-ways piezometric altitude pilot.

  • high level reservoirs and water towers.

  • new shaft/diaphragm/seal disc assembly
  • fully center guided shaft
  • only one moving assembly (Shaft-Diaphragm-Seal disc) upstream and downstream ports on valve cover for an easy maintenance
  • easy assembly, compactness and disassembly
  • head loss and cavitation risks reduction
  • wide hydraulic profile
  • excellent corrosion and cavitation strenght
  • conformity with both European and American standards
  • multiple function covers
  • perfect seal
  • removable seat
  • PATENTED

  • water supply and distribution
  • fire protection systems
  • water treatment
  • high-rise buildings
  • fuel stock plants
  • water supply stations (airports, marine and fluvial ports)
  • sport centers (swimming pools, pleasure grounds)
  • pump stations

  • high hydrodynamic section globe body, without stagnation pockets
  • open pass 100% of nominal diameter
  • standard ductile cast iron casting
  • epoxy-polyester resin powder painting
  • entirely guided travel shaft/diaphragm/seal disc assembly
  • standard stainless steel seal seat with cavitation risks reduction, bronze on request
  • stainless steel bolts
  • brass shaft
  • stainless steel guide shaft
  • double neoprene, nylon reinforced diaphragm
  • NBR, nylon reinforced diaphragm
  • easy disassembly due to the new ports design on the valve cover
  • easy maintenance and access to internal parts without removing the valve from the pipeline
  • purchased valve function can easily be changed with simple pilot circuit modifications
  • shaft indicator

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