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The self-seal design option In The Perfect Industrial vertical turbine pumps

DATE:2024/11/20 16:06:10

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The self-seal design option In The Perfect Industrial vertical turbine pumps

Advantages

The unique self-seal design option In The Perfect Industrial vertical turbine pumps eliminates the most common points of failure: the packing or a mechanical seal. This problem-solving sealing method reduces maintenance downtime and eliminates the potential for hazardous leakage and dangerous operating conditions.


How it Works

The shaft above the self-seal case is enclosed in a tube isolated from the fluid. A non-rotating O-ring seals this shaft-enclosing tube. As the pumped solution passes up through the lower column assembly, it enters the self-seal column case, located below the discharge head. The self-seal column case throttles the fluid pressure, diverting liquid away from the shaft-enclosing tube.

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A minimal amount of fluid flows past the lower bushing into the self-seal case. A stainless steel slinger in the self-seal column case directs this fluid to the pump’s bypass ports. Any fluid that flows past the lower bushing in the self-seal case is vented back to the tank or well.


From the self-seal case upward, the shaft is enclosed in a dry tube away from the fluid, making it impossible for leaks to occur at the point the shaft passes out of the discharge head.


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