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What are the precautions for the planning of mechanical rubber seals for autoclaves?

by:Lepu Seal     2021-06-04
What are the requirements for planning mechanical rubber seals for autoclaves? What are the requirements for planning mechanical rubber seals for autoclaves? What should I pay attention to? First, seal information (seal material)-mainly refers to the seal material (raw material), the unreasonable seal pair pairing can cause abnormal wear and leakage of the mechanical seal for the kettle. The requirements for sealing materials include the selection of high pu-value paired seal materials, which have higher mechanical strength and good abrasion resistance. Second, the strength of the seal-under high pressure, the fluid pressure will deform the secondary end face of the seal, and with the increase of the pressure of the mechanical seal for the medium, the starting torque will increase, so the strength should be selected High seal information. 3. The smoothness of the seals-factors such as conflict, wear and heat generation of the mechanical rubber seals will affect the life of the mechanical rubber seals, so smooth oil should be used. The mixing reactor currently used is a vertical type, and the mixing shaft is from the top Pierced, sealed and installed on the upper part of the kettle, the odd peaks in the kettle are mostly in the gas phase. Therefore, it is not practical to use the liquid in the kettle to be smooth. When using single-end mechanical rubber seals, it is necessary to set up an oil storage cavity; when using double-end mechanical rubber seals, it is necessary to force liquid to smooth the mechanical rubber seals. Considering to maintain the smoothness and air tightness of the mechanical rubber seals, it is best to use high-grade smooth oil. The selection principle of the smooth oil is: 1. Does not include particles, is resistant to oxidation for a long time and has good stability; 2. It is easy to degas, not easy to deposit and metamorphose and has good smoothness; 3. Good anti-corrosion; 4. According to the application pressure, inside the kettle The temperature and circulation method select the viscosity of the oil.
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