Correct and timely maintenance is a vital part of keeping a plant running smoothly and preserving process integrity. A video from SPX Flow explains constant-pressure valve (CPV) maintenance and includes step-by-step instructions for valve disassembly, replacement of O-rings and bushings, and reassembly. It also covers the tools required, safety points and warnings of where particular care needs to be taken to ensure the valve is not damaged during maintenance.  

The CPV is a diaphragm valve that keeps process pressures constant. It is typically used in the food and beverage, dairy, pharmaceutical and personal care industries in applications such as separation, pasteurization, ultra-high-temperature (UHT) processing and filling. It has bidirectional flow capability and uses a double-layer membrane. The CPV is designed to provide stable, responsive, modulating pressure control in a hygienically designed configuration.

Click here to watch the video.