When should the flange protector be removed from a valve?

The flange protector should be removed from a valve when it is ready for installation. This is important because the flange protector serves to prevent contamination and damage to the flange surface until the valve is prepared to be connected in the system. By removing the protector at the appropriate time, right before installation, you ensure that the sealing surfaces are clean and intact, allowing for a proper seal and preventing potential leaks. If the protector is removed too early, such as while the valve is just staged at the worksite or still in the warehouse, it increases the risk of dirt, debris, or moisture damaging the flange surface, which can negatively impact the valve's performance and reliability once installed. Proper procedure dictates that this protective measure is maintained until every other preparation is complete and the valve is directly about to be installed in the piping system.