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An adjustable wear plate positioning assembly for a centrufigal pump having a casing with an inlet port offset from a pump impeller mounted within an impeller housing. The positioning assembly includes a wear plate carrier extending between a front wall of the housing and the impeller chamber. The w

An adjustable wear plate positioning assembly for a centrufigal pump having a casing with an inlet port offset from a pump impeller mounted within an impeller housing. The positioning assembly includes a wear plate carrier extending between a front wall of the housing and the impeller chamber. The wear plate carrier has an outer end slidably received an aperture through the front wall. The wear plate carrier further has an inner end slidably received within a second aperture in the partition wall opposite an inlet face of the impeller. A mounting plate is secured to the outer end of the wear plate carrier and disposed externally of the casing. Adjustable limit means and releasable locking means act between the front wall and the flange for positioning the carrier and in turn the wear plate relative to the impeller and for locking the assembly in place.

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An adjustable wear plate positioning assembly for a centrufigal pump having a casing with an inlet port offset from a pump impeller mounted within an impeller housing. The positioning assembly includes a wear plate carrier extending between a front wall of the housing and the impeller chamber. The w

An adjustable wear plate positioning assembly for a centrufigal pump having a casing with an inlet port offset from a pump impeller mounted within an impeller housing. The positioning assembly includes a wear plate carrier extending between a front wall of the housing and the impeller chamber. The wear plate carrier has an outer end slidably received an aperture through the front wall. The wear plate carrier further has an inner end slidably received within a second aperture in the partition wall opposite an inlet face of the impeller. A mounting plate is secured to the outer end of the wear plate carrier and disposed externally of the casing. Adjustable limit means and releasable locking means act between the front wall and the flange for positioning the carrier and in turn the wear plate relative to the impeller and for locking the assembly in place. ly-Leu-Gly-Cys-R2 and R1is Asp-Ser-Gly-, R2cannot be Asn-Val-Leu-Arg-Arg-Tyr. The peptides of the invention can be formulated into pharmaceutical compositions and used to treat conditions associated with high extracellular fluid levels, especially congestive heart failure.