Plastic flat ring packing and pall ring packing are both commonly used types of filling, and they have some differences in structure, performance, and application. Here are their main differences:
1.Structure: Plastic Flat Ring Packing is a flat, ring-shaped packing that is much smaller in height than the diameter and is usually made of plastic material. Plastic Pall ring packing is a ring packing with a similar height and diameter, which is characterized by a certain height of tongue lobe on each ring piece, and the top of the tongue lobe is facing the same direction. 2.Performance: Due to the difference in structure, there are also certain differences in the performance of plastic flat ring packing and Pall ring packing. Plastic flat ring fillers have a small specific surface area and a large porosity, making them suitable for gas absorption and distillation operations of gaseous or liquid materials. The plastic Pall ring packing has a large specific surface area and a small void ratio, which is suitable for the filtration and separation of liquid materials. 
3.Application: Due to the difference in performance, the application range of plastic flat ring packing and pall ring packing is also different. Plastic flat ring fillers are mainly used in the separation, absorption, distillation and other fields of gas or liquid. The Pall ring packing is mainly used in the filtration, turbidity, purification and other fields of liquid. In summary, there are obvious differences between plastic flat ring packing and plastic pall ring packing in terms of structure, performance and application. In practice, the right type of filler should be selected according to the specific needs. 