AVENTICS™ Series CC02-AL Check-choke valves are designed to control the flow of fluids in pneumatic systems. They can be used to throttle or shut off the flow of air, gas, or other media in a variety of applications. The valves feature a compact design, easy installation, and low pressure drop. They are available in a range of sizes and connection types to suit different system requirements. AVENTICS™ is a brand of pneumatic components and systems manufactured by Emerson, a global technology and engineering company.