Bermad IR-C30-C Ductile Iron Combination Air Valve (PN16)

The Bermad IR-C30-C is a robust combination air release and vacuum relief valve, engineered for maximum performance in irrigation water networks and a wide range of operating conditions. Designed with a plastic inner valve body and a ductile iron protective shell, it offers the corrosion resistance of reinforced plastics with the external durability of a metal-bodied valve.

This advanced double orifice valve efficiently evacuates air during pipeline filling, continuously releases air pockets under pressure, and allows large-volume air intake during system draining or vacuum conditions. Its aerodynamic full-body kinetic shield prevents premature closing while ensuring uninterrupted air intake and discharge. Even under very low pressures (<1m or 0.1 bar), the valve’s dynamic sealing system maintains a leak-free operation.

The IR-C30-C is ideal for high points in pipelines, elevation changes, or near critical control valves and meters. Optional add-ons for 50mm models include surge protection, assisted closure, and inflow prevention kits for enhanced adaptability in the field.

FEATURES

• High-capacity air discharge and intake through straight-flow body and large automatic orifice
• Aerodynamic kinetic shield prevents premature closure without restricting airflow
• Dynamic low-pressure sealing down to 0.1 bar (1.5 psi)
• Threaded boss for pressure gauge or test drain connection
• Side outlet (DN50) for surge or inflow protection devices
• Factory tested under vacuum and pressure conditions for guaranteed performance
• Corrosion-resistant internals with fusion bonded epoxy-coated ductile iron cover
  

MATERIALS

• Body: Ductile Iron (FBE coated)
• Float Assembly: Polypropylene & Glass Reinforced Nylon
• Seals: EPDM (Viton optional)
  

OPERATIONAL DATA

• Minimum Pressure: 1.5 psi / 0.1 bar
• Maximum Pressure: 230 psi / 16 bar
• Temperature Range: 1–60°C
• Media: Water
  

APPLICATIONS

• Pipeline networks: At elevations, slope changes, road/river crossings
• Irrigation systems: Air management in mainlines and laterals
• Near control valves/meters: Ensures accurate readings and pressure control by removing air interference
• General vacuum protection: During shutdowns or unintentional system draining