Air valve design for PE water transfer.
In water transfer lines, trapped air at high points or vacuum during draining can impair network performance. Air release and check valves are essential design elements — not optional accessories.
On descending profiles, rapid pump shutdown without a check valve can create negative pressure and inward deflection of the pipe wall. With PE100 and thinner walls, air/vacuum protection becomes more critical.
Air pockets at line peaks reduce effective flow area, cut delivered flow and can contribute to transient pressure events.
