Figure 3.21. Spring plunger. 1. additional guide socket. 3.6. Seals of Hermetic Constructions To seal the main connections of hermetic docking devices (flanges, electrical through connectors; valves, etc.) resin seals are used which are the same as the seals of other compartments of the spacecraft [23]. These seals, as a rule, are gaskets with an square or circular cross section with a relative value of deformation of 35-50%, which can work in temperatures of +-50eC and which provide a vacuum density connection. The joint seal has significant features. This is primarily because it is located on the open ends before docking, and because of the limited number of locks of the docking frame and the force that they develop. Thus, the basic properties of this seal are: The possibility of mechanical effects and contamination in preparation for flight and during flight on the rocket booster;
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