Great training resource if you’re new to Mechanical Seals…lots covered in this five part Vulcan Seals PDF: Part 1 – Basics of Mechanical Seals and Soft PackingPart 2 – Mechanical Seal MaterialsPart 3 – Mechanical Seal Failure ModesPart 4 – Mechanical Seal General TypesPart 5 – Mechanical Seal Types Specific to Refrigeration Equipment