Two helix hollow rotor

The hollow rotor is used in high flow conditions.The hollow rotor weight is only about 20% as much as a solid rotor, but the strength is the same as a solid rotor.It can greatly reduce the cost of the pump.The lighter weight also reduces the pressure of the rotor on the stator rubber, extending the life of the pump.

Customizable in various sizes, usually stainless steel.

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