Corrosion resistant steel lined straight pipe

By employing a double-sealing structure and buffer layer design in the steel-lined straight pipe, the problems of leakage at the connection and installation complexity are solved, and the corrosion resistance and service life are improved.

CN224497853UActive Publication Date: 2026-07-14ZHANGJIAGANG WEINENG PUMP VALVE CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHANGJIAGANG WEINENG PUMP VALVE CO LTD
Filing Date
2025-05-30
Publication Date
2026-07-14

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Abstract

This utility model relates to the field of steel-lined straight pipe technology and discloses a corrosion-resistant steel-lined straight pipe, including a first straight pipe, a second straight pipe fixedly connected to one side of the first straight pipe, a protective component fixedly connected to the middle of the outer side of the first straight pipe, the first straight pipe including a first inner liner pipe, a fixing ring fixedly connected to one side of the outer side of the first inner liner pipe, a fixing groove formed on one side of the outer side of the fixing ring, and a sealing groove formed near the top of one side of the fixing ring, the second straight pipe including a second inner liner pipe, a connecting ring plate fixedly connected to the other side of the second inner liner pipe, and a sealing ring plate fixedly connected to the other side of the second inner liner pipe near the outer side; this utility model achieves double sealing connection of the inner liner pipe by inserting the sealing ring plate into the sealing groove and the connecting ring plate into the fixing groove, which is beneficial to make the pipe connection more airtight through double sealing, while reducing the complexity of installation.
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