For over 60 years, QCI has been providing a wide variety of processing industries with high-quality, trouble-free 2-way and Multi-Port Rotor Valve designs. The standard features incorporated into our valves make the QCI rotor valve a popular choice by design, plant and maintenance engineers alike. These features include: One-Piece Rotor & Stem, Reduced Cavity, Maintenance Free, Top Entry, Transitional Flow and High Flow Rates to name a few. Contained within this site is information that will assist you in the selection of a QCI Rotor Valve that will best suit your needs.