Marwin Ball Valves, A Division of Richards Industries

Marwin Ball Valves is well recognized throughout the industry for its extensive product line, including two piece, three piece, flanged and three way ball valves. Most lines are available in a variety of material including Duplex, Monel, Alloy 20, Hastelloy C, Bronze, along with carbon steel and stainless steel, and in a variety of end connections such as socket weld, screwed, butt weld, ANSI 150#, 300#, 600#, 900#, 1500#, and 2500# flanged, and extended ends. In addition, Marwin offers a full range of automated accessories including electric and pneumatic actuators, gear operators, limit switches, fusible links, spring handles, and solenoids. Custom products for a wide variety of critical applications are readily available from our Cincinnati headquarters whether your requirements are for general purpose fluid control, caustic service, process chemicals, cryogenic service, steam, chlorine, oxygen, sour hydrocarbon gas, or petroleum service.

Marwin takes pride in serving the customer and forming one-on-one relationships to provide effective industrial solutions, whether this calls for product enhancements, special designs, special materials, or new product designs. Marwin is known for its high quality products and customer service - our sales staff is experienced and readily available to answer your technical questions and solve your service problems. The Marwin line can handle almost any applications including corrosive or erosive, high temperature, low temperature, cryogenic, high cycle, fugitive emission, high pressure, and a wide range of process applications.

The 3000, 5000, 6000, 7000, and 10000 Series valves are cast in U.S. foundries and then machined, assembled, and tested in our ISO 9000 certified Cincinnati manufacturing plant. The valve parts are machined on CNC, state-of-the- art machining centers which provides high speed production with absolute quality precision. The parts are then assembled and tested by our knowledgeable plant personnel. All valves must pass stringent testing procedures before leaving the plant.