The Hydraulic Institute recently named new appointments.

The Hydraulic Institute named Bill Waltz, president of the Flow Technologies Division of Pentair Water, its chairman; elected Dennis Ziegler, president and CEO of GIW Industries, as president; Steve Oswald, president of the Industrial Division of Hamilton Sundstrand Corp., as vice president of member services; and Ken Napolitano, president of ITT Industrial Process, as vice president of knowledge and education. Also, HI re-elected Dave McKinstry, vice president of IMO Pump, as its vice president of technical affairs.