WHH

Centrifugal pumps, bilge pumps, multi-stage volute pumps, vertical pumps, horizontal pumps, axial flow pumps, submersible pumps, priming pumps, mixed flow pumps, vacuum pumps, screw pumps and slurry pumps, and parts for such pumps, namely, throat bushes and liners for pumps; pump seal assemblies, namely, hydrodynamic and mechanical seal assemblies for pumps; components for use in hydrodynamic and mechanical seal assemblies for pumps, namely, seals and seal housings; expellers for pumps; pump impellers; pedestals and bases for supporting pumps; pump frames; lined or unlined pump casings being parts of machines; ribbed pump casings being parts of machines; casing support feet for supporting pumps; bearing assemblies for pumps; slurry pumps for high pressure and/or head applications; pressure relief devices for slurry pumps, namely, rings and relief valves for relieving pressure in pumps