Company Profile

Marwin Valve, div. of Richards Industries

Marwin Valve is a manufacturer of quarter turn ball valves and automated accessories. Ball valve product range includes 2 piece, 3 piece, flanges and multi-port valves. Non-standard valves are also available including, metal seated, cryogenic, control and specialty seated valves.

Company Info

513-533-5600, 800-628-2583
3170 Wasson Rd.
Cincinnati, OH 45209


  • in Ball Valves

    Marwin Valve manufactures a line of ball valves, accessories and specialty products. The two piece ball valves are offered as manual or automated in brass, carbon steel and stainless steel. Three piece ball valves are configured in a variety of ways for many applications. Flanged ball valves come as one piece, two piece and three piece with easy bolt up installation. Multi-port valves are suited for mixing and delivering with L port or T port balls, bottom or side entry, ANSI flanged or threaded end connections. Specialty products include unique valves with high alloy materials, metal seats and customizations.
  • in Brass Ball Valves

    Marwin Valve manufactures a range of economical brass ball valves for general service applications. All of their brass ball valves are available in standard and full port threaded, full port solder end, and full port threaded end direct mount configurations. There are five series' to choose from.

  • in Flanged Ball Valves

    Marwin offers over a half dozen series' of flanged ball valves to handle everything from high pressure to process applications. The Marwin 5801/6801 Series is an API 607 certified fire safe flanged ball valve.

  • in Stainless Steel Ball Valves

    Marwin Valve offers two piece ball valves, three piece ball valves, flanged ball valves, and multi-port ball valves. The Marwin 9000 Series and the DM9000 Series of two piece ball valves are available in stainless steel materials and in sizes 1/2" through 2". The 2000 Series of flanged ball valves, the 5000/6000 Series of standard port and small full port valves, the 5801/6801 Series of flanged ball valves, and 5800/6800 soft seated flanged ball valves are offered in stainless steel construction.