Clow Valve $75 million expansion breaks ground


Contact: McWane Media

Clow Valve $75 million expansion breaks ground
36,000 square-foot addition supported by state High Quality Jobs Program

OSKALOOSA, Iowa (August 14, 2023) Clow Valve, among the McWane Inc. family of companies, began the construction to expand its iron foundry. This $75 million investment will add 36,000 square feet to its footprint.

The Oskaloosa City Council unanimously approved the project in February for their Iowa Economic Development Authority High Quality Jobs Program application. The program assists qualifying businesses to offset some of the costs incurred to locate, expand or modernize an Iowa facility.

As a primary employer in the Oskaloosa community, Clow Valve will retain 439 jobs in the area in the next five years with the expansion. The company has an annual payroll of over $34 million and a yearly economic impact of $157 million. By replacing manufacturing equipment upwards of 45 years old, the plant will nearly double production output. 

“For more than a century, products critical to our nation’s infrastructure have been produced in Oskaloosa,” Mark Willett, vice president and general manager of Clow Valve, said. “The tax credits approved by the Iowa Economic Development Authority toward updating our foundry underscore the future of our operation. We have made significant capital investments in recent years and remain committed to supporting the local community through philanthropic outreach and volunteerism. We proudly call Oskaloosa home and look forward to building upon our legacy of manufacturing high-quality, American-made waterworks valves and fire hydrants.”

About McWane Inc.

McWane, Inc. is a family-owned business based in Birmingham, Alabama, with companies across the U.S. and around the world. The McWane family of companies casts ductile iron products, including pipe, valves, hydrants, fittings and plumbing products, and manufactures fire extinguishers, fire suppression systems and steel pressure vessels. McWane is a leader in delivering clean, safe drinking water while focusing on safe, environmentally friendly manufacturing processes. With more than 7,000 team members, McWane has a longstanding commitment of supporting the communities where our team members live and work. For more information, visit