Skip to the beginning of the images gallery

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

SKU

18-028

Sales Price $5.58 Our Price $8.95 You save 38%

Overview

DIG Air Relief Valve 1/2 in. MPT

Size: 1/2 in.
Operating PSI: 140 PSI
Connection: Male Pipe Thread

Features & Benefits

DIG’s 1/2 in. Air Vacuum Relief Valve with male pipe thread delivers optimum performance and increased efficiency to a drip system by preventing back-suctioning of debris into the drip line. The valve allows air to escape the drip line during the system’s initial start and until the pipe or drip line is full of water. It also allows air to enter back into the drip line when the drip zone is turned off.

The relieve valve helps prevent clogging in sub-surface drip irrigation systems resulting from the back-suctioning of debris under vacuum conditions. Install it at the highest point of a drip line installation. Install the Air Vacuum Relief Valve after the drip zone, along the drip line laterals, and at the highest point in the drip system layout. Install one relief valve per zone or per each 10 GPM (33 LPM).

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
Reduces maintenance requirements and extends drip system life
Smooth and reliable operation
Eliminates air pockets within a drip system zone
Releases air from the drip line when the zone is turned on
Allows air to freely enter the system when the zone is shut down
Prevents vacuum conditions and stops debris or particles from entering the drip line via the drip emitters or drip line outlets
Helps prevent suction that can cause the drip line to collapse, potentially pulling in the dirt that can block the drip emitters
Perfect sealing under very low system pressure