Polyethylene (PE) and polypropylene (PP) are thermoplastic polymers created from the polymerization of ethylene and propylene, which are products of petrochemical plants. They are two of the most produced plastics with a multitude of applications. After production, the final granular product is stored in silos before being shipped to plastic product manufacturing plants or packed in bags.
The key application challenges is that PP and PE pellets have a low dielectric constant, and the environment can be quite dusty, leading to issues with build-up and risk of static heat and charges. That is why 80 GHz Radar Level Transmitters are recommended for this application.
The Rosemount 2521 Solids Level Switch is suitable for fine-grained and powdered media in storage and process vessels where high sensitivity is needed. It is a robust technology with high sensitivity and is easy to operate. It has flexible options via configurable specifications for different applications. With an adjustable switching delay, false switching can be prevented.
The Rosemount 2501 Solids Level Switch withstands heavy loads and extreme temperatures, and is suitable for full, demand or empty detection for all bulk media in all types of vessel. It is a simple, robust and reliable technology that is insensitive to dust, electrical charge, adhesion, extreme temperature and pressure. It is simple to install and can be mounted in a vertical, horizontal or oblique position.