John Brennan serves as Vice President and General Manager for the Oil and Gas Systems Division, with responsibility for managing and expanding the organization's growing portfolio of advanced technologies for the oil and gas processing market. In this capacity, he directs the management of three business units: DeltaValve, Tapco-Enpro and Valve Systems & Controls. Previously, he was President of Valve Systems & Controls, based in Houston.

Mr. Brennan has extensive operating experience in the oil and gas processing industry. He began his career in 1971 as a Project Engineer at Bruno Machinery Corporation. In 1975, he joined Valve Systems and Controls (VSC), a specialized industrial distributor in New Jersey. In 1978, he moved to VSC's headquarters in Houston as Manager of Engineering. He advanced through positions of increasing responsibility and was named President in 1983. VSC was subsequently purchased by Crane Company and in November 1989, John became President of Crane Valves. In 1994, John became President of Limitorque Corp., a manufacturer of electric valve actuators based in Lynchburgh, VA. In 1997, he left Limitorque to purchase VSC and become its President. In May 2007, VSC was purchased by CWFC.

John graduated from Western New England College where he received a BS degree in Electrical Engineering. John was elected to the Engineering School Hall of Fame at Western New England College in 2004. He has also served on the Board of Directors of the Valve Manufacturers Association.