Glandless centrifugal pumps

Figure 830. Performance characteristics of a family of glandless centrifugal pumps...

A standard end-section centrifugal pump with a special mechanical seal is suitable. The mechanical seal should be enclosed and a compatible flushing liquid provided. Alternatively a glandless pump may be used. Pumps should be protected against running dry. 

Each pump is a centrifugal single-stage glandless one with a canned two-speed synchronous motor intended to circulate primary coolant. The pump capacity is 870 m%, the head is 0.38 MPa (at high speed) and the consumed power is not more than 155 kW. Leaks are completely excluded due to the pump design. Continuous gas removal from the upper part of the pump is provided during operation. 

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