Removing the "hot" elements is only half the job. You must prepare the surface for the replacement.
Look for "heat checking"—fine radial cracks on the seal face caused by extreme thermal distress. jade phi p47 01 removing all hot
Wear heat-resistant gloves, face shields, and chemical-resistant aprons if the fluid handled was corrosive. Step 1: Disconnecting Auxiliary Lines Removing the "hot" elements is only half the job