Onyx Valve is the leader in the design of heavy duty final control elements. Our products are ideally designed to handle all types of slurry services. Onyx features both drop tight on-off and modulating duty pinch valves. Along with the economic cost of these products, comes the ease of maintenance. Each valve is designed with an easily interchangeable sleeve, which is the only valve part that comes in contact with the process fluid. The design configurations for the Onyx Pinch valve are virtually unlimited, with the changes in enclosure, pinching mechanism, sleeve type, and actuation the possibilities are endless.