Self-sealing fitting for cryogenic tubes remains free of leakage from room temperature to liquid-helium temperature even at internal pressure as high as 2.7 MPa. Fitting comprises parts made of materials with different coefficients of thermal expansion to prevent leakage gaps from forming as temperature decreases. Consists of coupling nut, two flared tube ends, and flared O-ring spacer. Spacer contracts more than tube ends do as temperature decreases. This greater contraction seals tube ends more tightly, preventing leakage.


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    Self-Sealing Cryogenic Fitting


    Contributors:

    Published in:

    Publication date :

    1994-05-01



    Type of media :

    Miscellaneous


    Type of material :

    No indication


    Language :

    English




    Self-Sealing Cryogenic Fitting

    Online Contents | 1994


    Sealing Mechanical Cryogenic Coolers

    Richter, R. | NTRS | 1985



    Sealing type close-fitting detector

    ZHAO BAOLIANG / DING HUAWEI / CHEN LUPING et al. | European Patent Office | 2024

    Free access