Disclosed herein are aspects of a sealing device, as well as a pump using the same. In one embodiment, the sealing device includes an axial sleeve having a first end and a second end, a dynamic seal mounted about the first end of the axial sleeve, the dynamic seal including at least one dynamic seal assembly, each of the at least one dynamic seal assemblies including a diffuser and a static steal mounted about the second end of the axial sleeve, and a fixed cartridge housing enclosing at least a portion of the axial sleeve, and an entirety of the dynamic seal and static seal.