The TVS Engineered Products 8800 Series Changeover Valve is designed to incorporate two safety relief valves installed on a single vessel system to protect in an over pressure emergency. Only one safety relief valve is in operation at a time while the other is installed as an interactive backup. If a problem occurs, such as a leak, simply switch to the other safety relief valve and remove the faulty valve to make repairs. The 8800 Series Changeover Valve ensures one safety relief valve is in operation at all times which yields minimal interruptions to process operations during an unplanned outage.
The 8800 Series Changeover Valve was created in response to the demand for cost effective changeover devices for relief valve installations. With a much more practical and easy to install design, the 8800 Series Changeover Valve solves the problems from previous changeover valve designs used in the industry. This system meets API requirements of less than 3% pressure drop.