When the application is more critical, and the sealing compound may fail due to high heat or pressure, NPTF Dryseal threads are used.
当密封要求严格时，密封剂可能由于高温高压会失效，这时可以采用NPTF干密封螺纹。
On the other hand, NPTF threads are designed to ensure that sufficient crushing of the entire thread form will take place to produce a mechanical seal.
另一方面，NPTF螺纹的设计用于保证在整个牙形上产生足够的变形以生成这种机械密封。
On the other hand, NPTF threads are designed to ensure that sufficient crushing of the entire thread form will take place to produce a mechanical seal.
另一方面，NPTF螺纹的设计用于保证在整个牙形上产生足够的变形以生成这种机械密封。
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