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The use of mechanical seals in high-pressure vessels is much more difficult than in medium and low-pressure vessels, mainly due to the high pressure. It's even harder if you encounter large diameters and high temperatures under high pressure. At high temperatures, the material is prone to plastic deformation or even creep, and the fastening bolts will loosen and leak easily. Undoubtedly, when designing the overall structure of the high-pressure vessel, the first consideration should be to reduce the diameter of the sealing ... more