Hebei Hankai piston wiper ring

3. Spring-Lip Seals Incorporating a spring within the design allows these seals to maintain consistent pressure against the shaft, enhancing sealing effectiveness. They are often used in applications with variable shaft movements.

A well-known example of agricultural seals is the USDA Organic seal. This certification assures consumers that the products are grown without synthetic fertilizers or pesticides, promoting environmental sustainability. Similarly, GlobalGAP (Good Agricultural Practices) certification ensures that farming practices adhere to safety, environmental, and social responsibility standards. These seals not only reflect the commitment of farmers to quality and safety but also enhance marketability, as consumers are increasingly seeking products that align with their values.

Furthermore, seals are essential for traceability in agriculture. They provide a means to track the origin of the product, from the farm to the consumer's table. This traceability is crucial in case of any contamination or food safety issues, as it enables authorities to quickly identify the source of the problem and take necessary actions to mitigate the risk.