RACI™ air valves

Automatic ductile iron air relief valve with single or double float for mains water systems and connections to users.

Ductile iron air relief valves are available in 3 models:

     

  • Threaded ODR
  • Flanged double float TDR
  • Flanged single float SDR

1″ threaded air relief valve ODR model

     

  • Body and cover of ductile iron construction to EN GJS 400-
    15 UNI EN 1563, with anti-corrosive coating internally and
    externally, average thickness 250 micron
  • 1″ threaded connection 
  • Flanged connection DN 25÷80 (on/off ball valve available
    on request)
  • Bleeds air from small ducts by means of an orifice and a
    rubber coated floating ball
  • Operating pressure: PN 10,16 and 25
  • Test pressure: 1.5 x operating pressure; 0.05 for operating
    pressure (UNI 10235)
  • To be installed preferably with on/off valve upstream

Flanged air relief valve mod. TDR with double float

     

  • Body and cover of ductile iron construction to EN GJS 400-
    15 UNI EN 1563, with anti-corrosive coating internally and
    externally, average thickness 250 micron.
     
  • Double-ball air relief valve with flanged connection.
     
  • Three-fold function: large evacuation/return during pipeline
    filling/emptying operations, and small evacuation afforded
    by means of a threaded device with orifice.
     
  • It also performs a vacuum-breaking function.
     
  • Flange diameters: 50 to 250 mm.
     
  • Flanges: PN 10,16 and 25 to UNI EN 1092-2.
     
  • Operating pressure: PN 10,16 and 25.
     
  • Test pressure: 1.5 x operating pressure; 0.05 for operating
    pressure (UNI 10235).
     
  • To be installed preferably with on/off valve upstream.