Netafim Line Air Valve with 15mm Male BSP Thread
Netafim Line Air Valve with 15mm Male BSP Thread - Grey Valve
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Air/Vacuum relief valve freely allows air into a zone after shut down. It also ensures a vacuum within non Anti Siphon dripperline system doesn’t suck debris or dirt back in to the dripperline. It also provides a means of releasing air from the dripperline when the zone is turned on, eliminating air pockets and speeding up the dripperline operation.
• Install Air/Vacuum Relief Valve at the highest point in the drip system.
• Install one Air/Vacuum Relief Valve for every 40L/M of zone flow.
Ensure that all of the rows of Dripperline can take advantage of the Air/Vacuum Relief Valve; install it/them along a lateral that runs perpendicular to the dripperline laterals. This may be a collecting manifold, or a special lateral connecting all rows of dripperline, such as going over a mound.