Hebei Hankai high pressure pump seal







cylinder gland seal. The seal material should be compatible with the hydraulic fluid used in the system to ensure reliable performance.
Shaft oil seals typically consist of a flexible sealing lip made from elastomeric materials such as rubber, polyurethane, or silicone, encased in a sturdy outer shell. The sealing lip makes contact with the rotating shaft, creating a barrier that effectively retains lubricants while blocking unwanted particles. The design may include additional features such as garter springs to maintain contact with the shaft and improve sealing effectiveness over time.
shaft oil seal

Vaccination is one of the most effective tools in swine medicine. Developed vaccines have been instrumental in controlling outbreaks and preventing the spread of infectious diseases. For instance, vaccines against PRRS have significantly reduced mortality and morbidity rates, allowing producers to maintain healthier herds and improve overall productivity. Furthermore, advances in vaccine technology are continually enhancing the efficacy and safety of these products, providing hope for better management of swine health in the future.
swine medicine pdf
