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The newly enhanced PNLD II units are heavy-duty industrial drain valves that remove condensate without wasting compressed air.The pneumatically-powered PNLD II requires no electricity, pre-settings, or manual intervention. Designed to complement all compressed air systems including compressors, filters, water separators, dryers, coolers and receivers, the PNLD II is easy to install and will not clog.A unique air valve design uses magnetic force to ensure a positive opening and closing that prevents attraction of metal particulate. Then an innovative ball valve support-and-positioning system prevents side-loading which causes premature sealing failure around the valve stem. Finally, a rifle-drilled discharge porting ensures that scale and rust exits through a fully ported 1.3 cm (1/2 in) ball valve.The result? PNLD II saves enough compressed air to pay for itself in six months or less.