Dig 18-028 Air Relief Valve 1/2 in. MPT

Product Description

The DIG 18-028 Air Vacuum Relief Valve with male pipe thread delivers optimum performance to a drip system by preventing back-suctioning of debris into the drip line. The valve allows air to escape during the system’s initial start and allows air to re-enter when the drip zone is turned off. It helps prevent clogging in sub-surface drip irrigation systems.

• Prevents suction of dirt into the drip laterals via the drippers by preventing vacuum formation
• Large air passage
• Constructed of UV-resistant, durable plastic material to withstand the most adverse conditions

Product Highlights

The air relief valve reduces maintenance requirements and extends drip system life with smooth, reliable operation. It eliminates air pockets within a drip system zone and provides perfect sealing under very low system pressure.

Product Information

Standard Information

• Brand: DIG
• Manufacturer Part Number: 18-028

Technical Specifications

• Brand: DIG
• Product Type: Drip Valves & Control Zone Kits
• Operating PSI: 140 PSI
• Size: 1/2 in.
• Connection: MPT
• Operating pressure: Up to 140 PSI (9.8 BAR)
• Temperature range: Up to 130°F (54°C)
• Inlet size: 1/2" MNPT
• Material: High impact plastic with Buna-N seal
• Thread Type: 1/2" male NPS
• Operating Pressure Range: 25 - 140 PSI
• Connection Type: MNPT
• Valve Size: 1/2 in.
• Valve Type: Air Relief Valve