Air relief valve WW-C30

vacuumfor water systemsfor pipelines

Overview
BERMAD C30-P is a combination air valve designed for water distribution pipelines. It evacuates air during filling, discharges trapped air pockets under pressure and admits large air volumes during pipeline draining. The valve features a double-orifice aerodynamic design and an optional Surge Protection (SP) or Inflow Prevention (IP) device for enhanced transient control.

Key features & benefits

• Double-orifice design: fast air release and large-volume air intake.
• Straight-flow body with equal nominal inlet and outlet for improved flow capacity.
• Dynamic sealing effective at low pressures (1.5 psi / 0.1 bar) to prevent leakage.
• Threaded side outlet 2" (DN50) for connection of SP/IP devices.
• Compact construction with fully corrosion-resistant internal parts for reduced maintenance.
• Optional SP/IP devices for surge and inflow control.
• Factory-tested performance, including vacuum condition testing.

Certifications & compliance

• Functional standards: WRAS (UK), EN‑1074‑4 (Europe), SAI AS4956 and WSAA (Australia), PUB SS 375 / SS 270 (Singapore).
• Designed in compliance with AWWA C512 (USA).
• Drinking water approvals: WRAS, ACS (France), NSF‑ANSI‑CAN 61, NSF‑ANSI 372 (USA), SAI AS4020 (Australia).

Typical applications

• Pipelines: protection against air accumulation and vacuum at high points, slope changes and crossings.
• Water distribution networks: air management during filling, operation and draining.
• Installed near control valves and water meters to avoid pressure regulation errors and biased readings caused by air.

Construction & materials

• Body material: Glass Reinforced Nylon.
• Fully corrosion-resistant internal components.
• Compact, service-friendly structure for easier maintenance.

Technical specifications

• Model: C30-P
• Series: Air Valves Series
• Rated pressure: PN16 (approx. 230 PSI)
• Orifice: Double-orifice configuration
• Side outlet: Threaded 2" (DN50) for SP/IP devices
• Dynamic sealing capability: effective at low pressures (1.5 psi / 0.1 bar)
• Optional accessories: Surge Protection (SP) and Inflow Prevention (IP) devices
• Standards compliance: AWWA C512 design; WRAS, EN‑1074‑4, SAI AS4956, WSAA, PUB SS 375
• Drinking water certifications: WRAS, ACS, NSF‑ANSI‑CAN 61, NSF‑ANSI 372, SAI AS4020
• Factory tests: performance tested including vacuum pressure conditions
• Internal code / barcode: 45212