Netafim Mini 1/2 in Combination Air Relief Vent

The Netafim Mini 1/2 in Combination Air Relief Vent (model AV-COMBO-050) clears large volumes of air during pressurization and admits air when lines drain to protect pipelines and improve meter accuracy. It is designed for continuous-action operation in drip and mainline irrigation systems.

• Continuous-action design: Releases small volumes of air while lines are pressurized and discharges large air volumes during start-up or draining.
• Durable materials: Body and components are made from corrosion-resistant, UV-protected reinforced nylon and engineered plastics for long field life with no metal parts to corrode.
• Applications: Use along mains, at the end of mainlines, before water meters and automatic metering valves, at high points, or upstream of manifolds for accurate flow readings.
• Performance: Mini 1/2" model rated for continuous operation with a maximum working pressure of 150 psi and compact dimensions suitable for riser mounting.
• Easy service: Simple float/seat assembly reduces maintenance and allows quick replacement where applicable.

This combination air/vacuum relief vent provides reliable protection against water hammer, helps prevent pipe collapse during emptying, and supports consistent flow measurement. Install on a short riser where greater intake or discharge capacity is required; follow manufacturer placement guidelines for optimal results. Refer to the Netafim technical datasheet for detailed sizing and installation notes.