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See Chinese contents: GB 32030-2022 GB 32030-2022: Minimum allowable values of energy efficiency and energy efficiency grades for submersible motor-pumps
This Document specifies the energy efficiency grade, minimum allowable values of energy efficiency and test methods for submersible motor-pumps. This Document applies to small-sized submersible motor-pumps, large and medium-sized submersible motor-pumps, waste submersible motor-pumps, well-used submersible motor-pumps, and mixed-flow submersible motor-pumps.
