Propellant-resistant double-channel sealing structure
A sealing structure and propellant technology, which is applied in the direction of sealing surface connection, connecting components, screws, etc., can solve problems such as easy leakage, impact on sealing, deformation of ball head bell mouth, etc., and achieve leak rate reliability and extremely low leak rate , the effect of easy installation
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[0037]In a preferred embodiment, the compression rate of the copper gasket 5 is 15%-25%. The copper gasket 5 is arranged in the second sealing groove 8 formed by the nozzle 1 and the pipe joint 2. The first end surface 10 of the pipe joint 2 is in contact with the copper gasket. One end surface of the piece 5 is in contact, and the second end surface 11 of the nozzle 1 is in contact with the other end surface of the copper gasket 5. During operation, the copper gasket 5 is compressed and embedded in the groove of the first section of the pipe joint 2 and the second end surface 11 of the nozzle 1 Inside, when the copper gasket 5 satisfies the compressibility in the above-mentioned range, a more reliable seal is formed.
[0038] Example of use: Use nozzle 1 and pipe joint 2 with a diameter of 30mm. The nozzle 1 and pipe joint 2 are made of 1Cr18Ni9Ti stainless steel, and butyl rubber and ethylene propylene rubber O-ring 4 with a small diameter of 1.8mm and a height of 1.5mm are u...
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