Within the Hygienic Design range, seal installation spaces and seal cross sections are therefore calculated and designed using simulation software in such a way that the necessary surface pressure is achieved during installation and at the same time, the seal material is not overstressed.Ī fundamental differentiation can be made between static and movable seals: This requires a defined pre-tension / pressure of the seals and wipers for a reliable and permanent seal when installed. Specificationįor parts that are designed in Hygienic Design, seals have the central function of protecting dead spaces, gaps and cracks from penetration of cleaning fluids or product residues.
Under normal operating conditions, bending loads or angular loads are not uncommon and result in a reduction of the load capacity, which must be taken into consideration. The values for static load capacity listed in the table refer to a purely vertical load to the leveling foot. The high surface quality prevents dirt from adhering and facilitates cleaning. Due to the wiper or the joint sealing ring, the movable components are sealed against the environment.
The sealing ring above the adjustment sleeve enables mounting without dead space. For this, the foot must be pressed down by the weight of the machine. The bottom seal protects the area beneath the base from dirt. GN 20 leveling feet without mounting holes comply with the 3-A sanitary standard 88-01 and the DGUV testing principles, making them suitable for use in in hygienic areas.
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