In a pump, an impeller having two shrouds (i.e., two disks enclosing the impeller vanes). Such a pump usually requires little maintenance and usually retains its operating efficiency longer than a pump having an open impeller.
In a pump, an impeller having two shrouds (i.e., two disks enclosing the impeller vanes). Such a pump usually requires little maintenance and usually retains its operating efficiency longer than a pump having an open impeller.