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Emerson Electric has announced that it will buy pump manufacturer Pentair’s valve and controls business for $3.15 billion in cash, as it expands its core business. Emerson, which has been shedding non-core businesses, is focusing on growing its industrial automation business, along with process management.

Earlier in August, Emerson agreed to sell its network power unit to the investment firm Platinum Equity , in a deal valued at $4 billion. Emerson also said that Japan’s Nidec Corporation would buy its motors and electric power generation unit for $1.2 billion.