• WIDE RANGE OF PRODUCTS

    One reliable source for valves, water control gates, pipe and fittings.

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  • BUILT TO SIMPLIFY

    We simplify complex flow control projects with the products and service you need.

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  • UNPARALLELED SERVICE

    From engineering support, to dedicated customer care, to experienced field service.

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Markets we serve

  • Water/Wastewater

    At MPI, we specialize in serving the needs of water and wastewater treatment plants, bringing an unmatched portfolio of products — and level of expertise — to this vital industry.

  • Irrigation/Agricultural

    We are a longtime leader in the agricultural irrigation market, providing a wide range of valves and water control gates for American farmers — including the well-known Waterman brand.

  • Civil

    Our Waterman water control gates provide reliable water flow management and flood control for critical infrastructure, including dams, riverways, hydroelectric systems and much more.

  • Industrial

    MPI designs and manufactures high-quality industrial valves for a vast array of applications, leveraging McWane's 100 years of manufacturing expertise to deliver reliable solutions.

Our Products

  • Valves

    Our extensive valve offering includes butterfly valves, gate valves, check valves, plug valves, mud valves, air and pressure relief valves, riser valves and hydrants.

  • Water Control Gates

    MPI's Waterman brand of water control gates features slide/sluice gates, radial gates, flap gates, fabricated slide gates, tilting weir gates, canal gates, stop logs and stop gates, and more.

  • Pipe

    We offer a range of ductile iron pipe, and cut-to-length fabricated pipe that can be customized to meet project needs, including a selection of interior linings and exterior coatings for harsh environments.

  • Fittings

    Our fitting line-up, manufactured by Tyler Union, includes MJ C153 and MJ C110 mechanical joint fittings, flanged C110 fittings and C153 push-on fittings, as well as a range of gaskets.

Trusted Brands

As part of the McWane family of companies, MPI is your single-source supplier for the industry's most trusted brands.

American-Made Products

As an American manufacturer — with wholly-owned, US-based foundries and factories — we are able to offer products that meet domestic requirements such as AIS and BABA.

Let's Connect

Ready to discuss how MPI can help meet your needs? Contact us today or find your local MPI representative to learn more

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