FIELD: machine building.
SUBSTANCE: invention relates to a sealing system capable of servicing and replacing the stuffing box packing, seals and rotary shaft sleeves (14), which drives tool (10), which extends into reservoir (12) containing the fluid. Rotating shaft (14) and associated seals (40, 50) are mounted in removable cartridge (32) removably insertable in sealing engagement into housing (35) projecting outwardly from reservoir (12). Secondary seal (34) comprises an isolating valve mounted on body (35) outside temporary seal reservoir (12) during maintenance of the seals in extracted cartridge (32). Tertiary seal is provided to protect secondary seal (34) from the contents of the tank when operating in environments in which solid deposits are formed. Also, the removable parts of said sealing system are described.
EFFECT: sealing system for the rotating shaft of the reservoir is proposed.
15 cl, 7 dwg
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