Rheodyne is the world’s leading manufacturer of precision high-pressure fluid valves and related products for the scientific analytical instrumentation industry. Since 1976, our passion for excellence has advanced our reputation as the foremost global experts in automated sample injection and fluid switching platforms. Rheodyne is now a part of the IDEX Health and Science group of companies. Working together we can offer comprehensive total solutions for your instrumentation needs from tubing, fittings and pumps to flow cells and valves.

Instrument engineers routinely look to Rheodyne's development expertise for the design of complete, ready-to-install, fluid handling assemblies for liquid chromatography (HPLC) and other types of instrumentation. "Innovation, Quality, and Performance" are the distinguishing characteristics of all Rheodyne products.

While Rheodyne's primary focus is the OEM market, we serve the needs of our laboratory customers through a worldwide network of authorized distributors.

Rheodyne's modern headquarters and manufacturing facilities are located in Rohnert Park, California, just 45 miles north of San Francisco. Click here to learn more about our location.

Learn more about Rheodyne:

• History: Find out how we grew.
• Patents: Rheodyne is proud to hold a number of patents..
• What's New: See what's currently happening at Rheodyne.
• Contact Us: Locate local and international contact information, including how to get support for our products or for instrument design.
• Driving Directions: Find detailed directions to our offices.
• IDEX Business Units: Learn more about IDEX Corporation.