• Size Range 25mm to 300mm
  • Temperature Range 4degC to 80degC
  • Max. Operating Pressure Up to 100bar depending on size
  • Min. Operating Pressure 50kPa (low head 10kPa also available)
  • End Connection BSPT, Flanged, Studded
  • Flange Drilling AS4087, AS2129, ASME B16.5, EN1092
  • Body Material Stainless Steel AISI 304L or 316L
  • Flange Material Fusion Bonded Epoxy Powder Coated
  • Top Cover ABS Polylac®, Stainless Steel 304L or 316L
  • Float Material High Density Polyethylene (solid)
  • Bleed Port Yes
  • O-Rings and Nozzle Seat EPDM as standard 

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PDF - RBX Manual




  • High capacity air discharge during pipeline filling
  • High volume air intake for vacuum break purposes, both during draining of water pipelines and/or column separations
  • Independent third-party tested
  • Controlled pressurised air discharge releases air when pipelines are fully-charged
  • Surge relief prevents pipeline bursts during pump trip & rapid pipeline filling
  • NSF61 approved; ARRA, Buy America or PA Steel, American Iron & Steel (AIS), if specified


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