American Made Waterworks Valves and Fire Hydrants.

Manufactured in Oskaloosa, Iowa, with a distribution facility in Riverside, California, our products are integral to waterworks systems throughout the world.

Quality Products

For generations, Clow Valve Company has been a global leader in manufacturing waterworks products that are used in water distribution and infrastructure.


Unmatched Service

Our relationships with our customers allow us to anticipate their needs, provide a superior level of service and, ultimately, help them focus on the intricacies of their business.

Sales & Distribution

Rich History

For more than 130 years, Clow Valve has been servicing its customers as one of the United States' premiere manufacturers of iron valves and hydrants for the waterworks industry.

Company History


Simplicity, confidence, and availability for the protection of lives and property.


Widely available and trustworthy components of your life-promoting water utility.

Clow Valve is proud to be a part of the McWane family of companies.