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Patent Name:
Labyrinth structure sealing element
Patent Number:
ZL201922055066.1
Type of patent:
Utility model patents
Patentee:
Jiangsu Shentong Valve Co., Ltd.
Patent Abstract:
A labyrinth structure seal includes a wave spring, a pressure ring, and a sealing ring. The sealing ring is made of PCTFE. The sealing ring has a zigzag structure and the sealing surface is an arc surface. The inside of the sealing ring is provided with a groove matched with the pressure ring. The hole, the pressure ring is wedge-shaped, and the wave spring is arranged on the pressure ring. The beneficial effect of the utility model is that for the valve adopting the sealing structure, since the sealing ring is provided with multiple serrated arc sealing surfaces, multiple sealing points will be formed with the installation groove, and due to the labyrinth effect, when The first sealing point fails, the medium gradually penetrates from the first sealing to the second sealing, but the pressure is gradually attenuated, the latter several sealing points can also play a sealing role to achieve a seal.
Transfer Price:
$2 million
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