In a transaction valued at approximately $3.9 billion, Kohlberg Kravis Roberts & Co. L.P. (KKR), New York, will acquire all of the outstanding shares of Gardner Denver common stock. The merger is subject to approval from Gardner Denver’s shareholders, regulatory approvals and other customary closing conditions.

 Gardner Denver Inc., Wayne, Pa., with 2012 revenues of approximately $2.4 billion, is a manufacturer of highly engineered products, including compressors, liquid ring pumps and blowers, pumps used in the petroleum and industrial market segments, and other fluid transfer equipment.