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      AIREX DOUBLE FUNCTION AIR VALVE

      double
      • DN 50 - 60 - 65 - 80
      • PN 10 – 16 – 25

       

      The automatic double function air valve is installed on
      pressurised water pipes to aid with emptying and filling
      operations. When the pipe is being emptied, the air valve
      prevents formation of dangerous low pressure areas and
      speeds up the operation. When it is being filled, the air
      valve rapidly releases air so that it cannot accumulate at
      high points, where it would create problems as water
      starts flowing through the pipe.

      Applications: Water Hydro Irrigation Industry

      MAIN FEATURES

       • Design and performance in accordance with EN1074-1 and 4
       • Flange in accordance with EN 1092-2
       • EPDM seal for drinking water
       • Marking according to EN 19
       • Hydraulic test according to EN 12266 and in compliance with the requirements of EN 1074-1 and 4
       • Homologations for contact with drinking water KTW (Germania), WRC (UK), ACS (Francia)
       • Hole predisposition for purge
       • Option of drain plug or ball valve on request

      MATERIALS

       • Body and upper flange: in ductile iron EN-GJS-400-15 according to EN 1563
       • Nuts and washers: in A2 stainless steel
       • Float, guides and seat: in ABS
       • Seal: EPDM
       • Cover, protection grid and threaded rods: in AISI 304
       • Optional purge ball valve: brass

      CORROSION PROTECTION

       • Epoxy coating with a minimum thickness of 250 microns in compliance
         with EN 14901 for body, cover and flange in ductile iron.