Clow Valve Company is a manufacturer of waterworks valves and fire hydrants located in Oskaloosa, Iowa and Corona, CA.  Clow Valve Company’s roots date back to 1878. Then known as James B. Clow & Sons, the company was a jobber of wrought iron pipe and other foundry products. In 1890, Clow added fire hydrants and waterworks valves to its line by becoming a distributor for the Eddy Valve Company of Waterford, N.Y.

In the 1940s, Clow purchased the Eddy Valve Company and the Iowa Valve Company of Oskaloosa, Iowa. The combination of these two companies enabled Clow to become national in scope, making further expansion possible. In 1972, Rich Manufacturing Company of Corona, Calif., was acquired. This added the wet barrel fire hydrant to Clow’s already significant product line of waterworks products.

In 1985, McWane, Inc. purchased all of Clow Corporation’s stock, and Clow became a wholly owned subsidiary. In 1996, the Waterworks Division of Long Beach Iron Works was acquired by Clow, adding to the extensive fire hydrant line.

Today, Clow Valve Company operates at two locations: Oskaloosa, Iowa, and Corona, Calif. The Oskaloosa plants include iron and brass foundries, a machine shop, assembly, finished goods warehousing, shipping and administrative offices. The Corona plant manufactures and assembles wet barrel fire hydrants and maintains inventories of other Clow products. We are proud to continue our history of offering manufactured products that comply with “Made in the USA” requirements.

Industrial

Manufacturing

Water

Clow Valve Company

Mark Willett

Jim Nelson

Chris Roberts

Steve Werninger

Ryan V.

Richard Ledesma

Mike Moore

Jon Denniston

Jerry Lawman

Eric Benson

Bill Hunt

Annie T.

Andy Kohler

Adam Boden

The Engineering Team at Clow Valve Company is responsible for the design, development, and optimization of waterworks valves and fire hydrants. This includes system engineering, product design, managing engineering projects, and improving manufacturing processes to ensure high-quality, efficient, and cost-effective production. The team collaborates closely with other departments to ensure that all products meet regulatory standards and industry requirements.

Engineering Team

Sales Team

Engineering Team

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Sales Team