The level-free tray connection is cleverly used without a light liquid separator in the protector, and prevents back-water at the overflows between two tray elements th-rough a near-level overflow.The superimposed material creates an ideal sealing surfa-ce with minimal gradation in material thickness.The level-free overflow consists of two ground-leveloverflows with a width of 150 mm per tray connection, each fixed with two welding studs and washers and nuts.The shape of the connection ensures that the included sealant is applied evenly and over a large area, and that a secure and reliable connection is guaranteed – even with high temperature fluctuations.