What is modular sealing? What are its features?
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A modular mechanical seal consists of a regular mechanical seal, a shaft sleeve, and a sealing gland that are pre-assembled into one unit. Once it is installed on the pump, no adjustments are required (including adjusting the compression of the springs); merely the shaft sleeve and the gland need to be fixed, and then the split-type retaining ring must be removed (as shown in A in Figure 12), after which it can be put into use. It can be seen that the (axial) width of the collar is equal to the compression amount of the spring, and it is possible to determine the value and its changes from the outside. Assembling in advance makes it easier to ensure a properly sealed installation, which can reduce failures caused by poor installation, especially for double-end face seals. In recent years, modular seals have developed rapidly. Due to differences in aspects such as the structure of snap rings, the transmission between shaft sleeves and shafts, and the sealing between shafts and shaft sleeves, many types of modular seals have emerged.
The main features of modular mechanical seals are as follows: 1. Easy installation: Since modular mechanical seals have various components pre-assembled, there is no need to adjust each part individually during installation, **which simplifies the installation process. 2. Improve sealing quality: Since the seals are pre-assembled, it is possible to ensure a higher quality of sealing, thereby reducing seal failure issues caused by poor assembly. 3. Easy to adjust and maintain: Another advantage of modular mechanical seals is their ease of adjustment and maintenance. Since all the components are pre-assembled, during adjustment and maintenance, it is only necessary to replace or adjust the entire assembly, without the need for complex disassembly and adjustment of individual parts. 4. Wide range of applications: Due to their ease of installation and maintenance, as well as their ability to ensure effective sealing, modular mechanical seals are widely used in various types of equipment, such as pumps, compressors, and refrigeration units. 5. Diverse structures: Depending on actual requirements, the structure of modular mechanical seals can take many different forms. By altering the design of the retaining ring, changing the way in which the shaft sleeve and shaft are connected, and modifying the sealing mechanism between the shaft and the shaft sleeve, it is possible to create numerous different types of modular mechanical seals. .