A Technician’s Guide: Disassembling and Cleaning a DeVilbiss Rotary Valve
Introduction
The rotary valve is a critical component in many DeVilbiss oxygen concentrators, directing the flow of air through the PSA system. A dirty or malfunctioning valve can lead to purity issues, pressure alarms, and overall system failure. This guide offers a step-by-step process for biomedical technicians to correctly disassemble, clean, and reassemble a DeVilbiss rotary valve (part number 515A-702).
The Disassembly and Cleaning Process
Precision and cleanliness are paramount when servicing this component. Our video guide provides an expert demonstration of each step.
- Safe Disassembly: We show how to carefully remove the valve from the concentrator and disassemble its components, including the motor, ceramic plates, and seals, while keeping track of all parts.
- Meticulous Cleaning: This section focuses on the proper techniques for cleaning the valve’s ceramic plates and housing. We stress the importance of removing all particulate matter and residue without scratching the precision surfaces.
- Seal Inspection and Lubrication: A detailed look at inspecting the rubber seals for wear or damage. We also cover the application of a specific, approved lubricant that is essential for a proper seal and smooth operation.
- Correct Reassembly: We guide you through the reassembly process, ensuring correct alignment of the ceramic plates and proper tightening of all fasteners to prevent leaks.
Restoring Concentrator Function
A properly serviced rotary valve can resolve a wide range of concentrator faults. This procedure is a cost-effective repair that restores the machine’s core functionality and reliability.
Watch the full video guide here: How to Disassemble, Clean, and Reassemble a DeVilbiss Rotary Valve