Plastic step ring filler, plastic step ring material has PBT,PE,PP,PVC,CPVC,PVDF and other materials, the side end of the plastic step ring filler increases the flanging, not only can increase the mechanical strength of the filler, but also because the plastic step ring filler has destroyed the symmetric part of the filler structure, so it increases the directional probability of the filler when it is put.

Due to the influence of dry flanging, the contact between the ring gap of the stepped ring packing changes from linear contact to point contact. Therefore, the stepped ring packing not only increases the gap between the packing particles and reduces the negative force of 7 gas passing through the packing layer, but also these contact points can be the convergence and dispersion points of the liquid flowing along the surface of the packing, thus promoting the surface renewal of the liquid film and improving the mass transfer efficiency of the packing.