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Lined Valve Company is a leading designer and manufacturer of knife gate valves. Whether you are looking for large custom valves or smaller commodities, our unique blend of experience, dedicated quality engineering and effective support, takes purchasing knife gate valves to a higher level.

We think on our feet like a dynamic company must. Our synergy and communications reflect on our agility, productivity and efficiency, as a valued supplier. We are proud to be based right here in America, and we’re equally proud of our work.

We invite you to see our product line. With our extensive range of knife gate valves, we are confident we have the right valve for your application. Our valves are working across the world in a variety of industries. We would like to serve your needs too.

American Iron and Steel (“AIS”) Provision

As you may know, recent EPA funding provisions for water and waste water infrastructure projects include a restriction against using the funds to purchase certain iron or steel products that were produced outside the United States. Specifically, the funding provision requires Clean Water State Revolving Loan Fund and Drinking Water State Revolving Loan Fund assistance recipients to “use iron and steel products that are produced in the US for projects for the construction, alternation, maintenance, or repair of a public water system or treatment works.” This provision is known in the industry as the American Iron and Steel (or “AIS”) requirement. EPA’s guidance on the AIS requirement specifically mentions valves made of iron and steel. At the time you request a quote, please notify us if the product you will be purchasing will be required to meet the new AIS requirement.