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C60/C65-SP Sewage and Wastewater Combination Air Valve c/s Surge Protection


Bermad C60/65-SP is a high quality combination air valve (with surge protection) for a variety of sewage and wastewater networks and operating conditions. It evacuates air during pipeline filling, allows efficient release of air and gas pockets from pressurized pipes, and enables large volume air intake in the event of network draining. With its advanced aerodynamic design, double orifice and antislam / slow closing device, this valve provides excellent protection against air and gas accumulation, surge and water hammers with improved sealing under low pressure conditions.
Features include;

  • Surge protection standard to minimize water hammer
  • Low pressure sealing less than 1m
  • Straight flow body
  • Aerodynamic full-body kinetic shield
  • Elongated body design with non-stick
  • coating
  • Valve is opened from the top
  • 2 service ports
  • Compact, simple, robust and reliable
  • structure
  • Fully corrosion-resistant parts
  • Optional surge protection, inflow prevention and drainage valve

Pressure rating: PN16
Operating pressure range: 0.1 – 16 bar
Operating temperature: up to 60°C
Body Material: Standard – Cast ductile iron
Coatings:Standard – Baked epoxy, blue
Inlet sizes: DN50, DN80, DN100
Connections: Threaded Female BSPT  ( DN50 only) or
Flanged AS4087 – Class 16 (DN50 , DN80 & DN100)
Additional features: Inflow Prevention (C65-IP)

Download Data Sheet for detailed specifications or contact your local Viadux Customer Centre.


Sewage and wastewater pumping stations – Air relief, vacuum prevention and surge protection.

Sewage and wastewater pipelines – Protection against air and gas accumulation and vacuum formation at elevations, slope change points and at road/river crossings.

Protection against vacuum formation, surge and water hammer at points likely to experience water column separation.

Municipal and industrial wastewater treatment plants – Protection against air and gas accumulation and vacuum formation.