For this project, Rheo engineered and constructed a custom hard-wall containment isolator specifically designed for high-containment weigh and dispense operations. The isolator features a two-glove chamber, optimized for operator ergonomics and process safety. Integrated into the chamber are a dispensing drum port and a drum lid bag-out port, both utilizing Rheo Flexibles proprietary canister system to ensure secure, contained transfer of materials into and out of the isolator.
The system is controlled via an Allen Bradley touchscreen HMI, which manages automated pressure and oxygen concentration setpoints. Upon startup, the control program initiates an automatic pressure decay test to verify system integrity. Material is dispensed directly into a RheoPac positioned on an integrated bench scale, with a weighing isolation bellows providing a sealed, flexible connection to maintain containment during the weighing process.
To ensure a consistently safe working environment, Rheo supplied a dedicated air filtration unit equipped with HEPA filters, maintaining negative pressure within the isolator throughout operation. Drum loading is facilitated by a GMP-compliant stainless steel Drum Tipper, seamlessly integrated into the isolator frame to ensure precise and repeatable drum placement into the drum port.
The system also includes an uninterruptible power supply (UPS) built into the equipment frame, providing continuous power to critical components and ensuring operational reliability during power fluctuations.
