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Bermad Model C30C - Combination Air Valve
BERMAD C30 is a high-quality combination air valve for a variety of water networks and operating conditions. It evacuates air during pipeline filling, allows the efficient release of air pockets from pressurized pipes, and enables large volume air intake in the event of network draining. With its advanced aerodynamic design, double orifice and Surge Protection device (optional), this valve provides excellent protection against air accumulation and prevents vacuum formation, with improved sealing in low-pressure conditions.
Features and Benefits Sֺֺtraight flow body with large diameter automatic orifice: Higher than usual flow rates. Aֺֺerodynamic full-body kinetic shield: Prevents premature closing, without disturbing air intake or discharge. Dֺֺynamic sealing: Prevents leakage under low pressure conditions (1.5 psi; 0.1 bar). Tֺֺhe boss on the base can be tapped with a thread for pressure gauge connection, check point or test drain for air valve function. Tֺֺhreaded Side outlet (2”; DN50) for connection of Surge Protection (code SP) or Inflow prevention (code IP) devices. Cֺֺompact, simple and reliable structure with fully corrosion resistant internal parts; lower maintenance and increased life span. Dֺֺesign in compliance with functional standard and water service standards. Fֺֺactory approval and Quality Control: Performance and specification tested and measured with specialized test bench, including vacuum pressure conditions.
Additional Features & Accessories Sֺֺurge Protection (code SP) device: Smoother operation, preventing damage to the valve and the system. Iֺֺnflow Prevention (code IP) device: Prevents intake of atmospheric air in cases where this could lead to damaged pumps, required re-priming, or disruption of siphons. Sֺֺervice Ports fitted: ¹/8”;DN3 or ¼”;DN6 plug for pressure gauge connection, check point or test drain for air valve function. Eֺֺxtension with downwards outlet, only for inlet sizes 2-3”; DN50-80.
Typical Applications Pֺֺipelines: Protection against air accumulation and vacuum formation at elevations, slope change points and road / river crossings. Wֺֺater networks: Protection against air accumulation and vacuum formation. Iֺֺn proximity to control valves and water meters: Prevention of inaccurate pressure regulation and biased readings due to air existence in these devices. Inlet and Outlet Connections Iֺֺnlets: Plastic Body (C30-P): male threaded ¾-2”; DN20-50, Flanged 2-3”; DN50-80 Ductile Iron Body (C30-C): male threaded 1-2”; DN25-50, Flanged 2”; DN50 Oֺֺutlets: Sideways, 2”; DN50 female threaded only for inlet sizes 2-3”; DN50-80 Materials Bֺֺody Glass-reinforced Nylon (code C30-P) Ductile Iron (code C30-C), coated with Fusion Bonded Epoxy, Blue Fֺֺloat Assembly: Polypropylene, Glass Reinforced Nylon. Eֺֺlastomers: EPDM, Optional - Viton. Operational Data Pֺֺressure Rating: 230 psi; ISO PN16 Mֺֺinimum operating pressure: 1.5 psi; 0.1 bar Mֺֺaximum operating pressure: 230 psi; 16 bar Mֺֺedia and operating temperature: Water, 33-140°F; 1-60°C
Air Flow Performance Charts
Cutaway - Ductile Iron Body (C30-C)
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