Rheodyne® Injectors, Sample Loops, and Accessories

Sigma-Aldrich offers a wide range of the industry-standard Rheodyne® valves, injectors and replacement parts. Rheodyne products are designed as advanced fluid-handling solutions for a wide range of analytical instrumentation and in vitro diagnostic systems. Rheodyne injectors remain the number one choice of instrument engineers around the world who have relied on the top-quality, low- and high-pressure fluid valves, automated sample injectors, fluid-switching platforms, and associated products. Consult the product listing below for easy ordering of valves and replacement parts.