AIR RELIEF VALVE - 18-028

This 1/2" air vacuum relief valve has been designed to prevent clogging of below grade drip irrigation systems. It also helps prevent infiltration of toxic substances into the drip system.

• Large air passage
• High resistance to chemicals
• Smooth operation
• Prevents clogging of drippers
• Prevents vacuum and suction of dirt into the polyethylene tubing

• Operating Pressure: up to 140 PSI
• Temperature Range: up to 130 degrees
• 1/2" MNPT

• Plastic with Buna-N-Seal