ITT Residential & Commercial Water (Morton Grove, Ill.) named John Williamson (right) as president. He succeeds Gretchen McClain, who was promoted to president of ITT Fluid Technology Corp.

Arzel Zoning Technology (Cleveland) named Crescent Parts & Equipment (St. Louis) as an authorized distributor of its product line.

Nutech Brands Inc. (London, Ontario) appointed Michael Dailey as vice president of sales and marketing.

Power Distribution Inc. (Richmond, Va.) was acquired by the private equity firm Bertram Capital (Palo Alto, Calif.).

Publication date: 05/14/2007