High-Performance Rotary, Diverter and Slide Gate Valves for the Plastics and Chemical Industry

The production of polyolefins, such as polyethylene and polypropylene, involves the uninterrupted handling of powders and granules to create high-performance plastics that are ultimately used for different products. Rotary and diverter valves are essential components in this process, ensuring controlled, reliable flow of materials between reactors, dryers, and storage systems. 

Typical Plastics Manufacturing Process

When it comes to the production of engineering plastics (e.g. polyamide, polycarbonate or PEEK) for a variety of end uses, precise handling of often sensitive materials is required. Rotary and diverter valves are crucial in ensuring contamination-free transfer throughout the different process steps. While rotary valves deliver consistent flow control of additives and reinforcing agents, diverter valves allow seamless switching between process lines. 

Typical PVC Processing Set-up

In plastics compounding, polymers are blended with additives, fillers and colorants to achieve the desired end results. Precise and efficient material handling plays a key role which includes the installation of rotary and diverter valves. They not only ensure a consistent flow, but also accurate feeding of bulk materials throughout the process. Rotary valves support uniform feeding into extruders and mixers, while maintaining system pressure and preventing leaks. Diverter valves enable flexible routing of materials between lines, reducing downtime and cross-contamination. 

Typical Compounding Process

Plastics recycling involves handling a wide range of materials. This varies from shredded waste (mostly in the form of flakes or fibres) and finally reprocessed pellets. In some steps of the recycling process, rotary and diverter valves can contribute to a consistent flow and preventing contamination throughout sorting, washing, drying, and reprocessing. Rotary valves ensure reliable material control from one process step to another. Diverter valves provide flexible routing between recycling steps, allowing efficient switching between material streams.

Typical Compounding Process in Plastics Recycling

Chemical manufacturing and battery material production both involve the precise handling of bulk materials under strict safety, purity, and contamination-control standards. Rotary and diverter valves are critical for controlling material flow in processes such as mixing, reaction, drying, and packaging. Rotary valves ensure accurate, consistent feeding while preventing leaks and contamination, while diverter valves enable safe, flexible routing of materials between process lines or storage systems.

Typical Additive Handling System in Battery Manufacturing