Netafim Line Air Valve with 15mm Male BSP Thread - Grey Valve

Prevents Suck-Back and Air Pockets in Dripline Irrigation Systems

The Netafim Line Air Valve (Grey) is a 15mm male BSP air/vacuum relief valve designed for use in dripline irrigation systems without anti-siphon (AS) protection. It automatically vents trapped air during system startup and allows air to re-enter the system on shutdown to prevent vacuum conditions and "suck-back" of debris into the emitters.

FEATURES

• Protects Dripperline Integrity: Prevents vacuum collapse and contamination by allowing air into the system during shutdown.
• Improves Start-Up Efficiency: Eliminates trapped air and speeds up emitter activation when the system turns on.
• Simple and Reliable: Automatically responds to system pressure changes without user intervention.

INSTALLATION

• Install at the highest point of the drip system.
• Position on a perpendicular manifold or connecting lateral to ensure effectiveness across all drip rows.
• Use one valve per 40 L/min of zone flow for optimal protection.
• Not suitable for low pressure systems – requires minimum 70 kPa (7m head) to operate correctly.

APPLICATIONS

• Agricultural and landscape drip irrigation zones
• Systems using standard non-AS dripperline
• Areas prone to vacuum draw or air blockages