Single Orifice Air Release Valve

Single Orifice Air Release Valve is engineered to automatically vent small, entrained air pockets that accumulate at high points in a piping system while operating under full working pressure. Designed with a compact body and a precision lever-and-float mechanism, this valve continuously purges trapped gases to prevent flow restriction, pressure drop, and air-binding in liquid pipelines.

Featuring a streamlined interior to ensure smooth fluid movement, the single orifice air valve operates automatically without requiring external power or manual intervention. As air collects inside the valve body, the internal liquid level drops, lowering the float and opening the small orifice to exhaust the gas. Once the air is purged, the rising liquid pushes the float back up to create a tight, leak-free seal. Widely deployed across municipal water supply networks, irrigation systems, HVAC loops, and industrial fluid transmission lines, it maintains optimal line capacity and operational efficiency.

Key Features

• Continuous Pressure Venting: Automatically bleeds small air pockets under full line operating pressure without liquid loss.

• Precision Float & Lever Mechanism: High-sensitivity float design ensures reliable opening and tight seating even at low pressures.

• Compact & Lightweight Body: Minimal footprint allows easy installation at pipeline high points and space-constrained valve vaults.

• Corrosion-Resistant Components: Constructed with durable body materials and stainless steel internal trims for long service life.

• Leak-Tight Sealing: Resilient soft seating materials ensure zero-leakage performance under varying system pressures.

Brands We Provide

• EMERSON

• SVR GLOBAL

• ARMSTRONG

• GCC VALVES

• KITZ CORPORATION

Applications

• Municipal Water Supply & Distribution Pipelines

• Irrigation & Agricultural Water Networks

• HVAC Chilled & Hot Water Systems

• Industrial Process Liquid Lines

• Water Treatment & Filtration Plants

• Pump Discharge Lines (High-Point Venting)

Benefits

• Prevents Air Binding: Eliminates trapped air pockets that restrict line flow and reduce pumping efficiency.

• Protects Against Pressure Drops: Maintains consistent flow rates and system pressure throughout the pipeline network.

• Reduces Energy Consumption: Keeps pumps running at peak efficiency by removing flow resistance caused by air locks.

• Low Maintenance: Simple, mechanical float design with minimal moving parts ensures extended, hassle-free operation.

Our Single Orifice Air Release Valves at AustraliaValves.com are built to international quality standards, offering versatile material options, pressure ratings, and connection types to suit your project requirements across Australia.

For technical specifications, orifice sizing, or to request a quote, please contact us.