Dual-seal ball valve seat compact in structure
A double-sealed, compact structure technology, applied to the valve housing structure, valve details, valve device, etc., can solve the problems of high manufacturing cost and complex structure, and achieve the effects of reducing manufacturing cost, saving volume, and simple and reliable detection methods
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[0023] The first embodiment:
[0024] Such as Figure 1 ~ Figure 2 As shown, a double-sealed ball valve seat with a compact structure is characterized in that it comprises a valve body 1 with a channel 2, a ball 3 arranged in the valve body 1, and a limit ring 17; the inner wall of the channel 2 is provided with The outer valve seat 4 and the inner valve seat 5 between the ball 3 and the valve body 1. The outer valve seat 4 is arranged at one end of the inner valve seat 5 close to the ball 3; one end of the outer valve seat 4 abuts against the ball 3 to form The other end of the hard sealing surface 6 abuts against the end surface of the inner valve seat 5; the outer valve seat 4 has a circumferential protrusion, and one end of the limit ring 17 is clamped on the protrusion to limit the inner valve seat 5 Axial displacement, the other end is fixedly connected with the inner valve seat 5.
[0025] The double sealing structure of the inner valve seat 5 and the outer valve seat 4 is...
Example
[0026] The second embodiment:
[0027] Such as Figure 1 ~ Figure 2 As shown, a double-sealed ball valve seat with a compact structure is characterized in that it comprises a valve body 1 with a channel 2, a ball 3 arranged in the valve body 1, and a limit ring 17; the inner wall of the channel 2 is provided with The outer valve seat 4 and the inner valve seat 5 between the ball 3 and the valve body 1. The outer valve seat 4 is arranged at one end of the inner valve seat 5 close to the ball 3; one end of the outer valve seat 4 abuts against the ball 3 to form The other end of the hard sealing surface 6 abuts against the end surface of the inner valve seat 5; the outer valve seat 4 has a circumferential protrusion, and one end of the limit ring 17 is clamped on the protrusion to limit the inner valve seat 5 Axial displacement, the other end is fixedly connected with the inner valve seat 5.
[0028] A sealing ring 10 is provided between one end of the inner valve seat 5 and the bal...
Example
[0029] The third embodiment:
[0030] Such as Figure 1 ~ Figure 2 As shown, a double-sealed ball valve seat with a compact structure is characterized in that it comprises a valve body 1 with a channel 2, a ball 3 arranged in the valve body 1, and a limit ring 17; the inner wall of the channel 2 is provided with The outer valve seat 4 and the inner valve seat 5 between the ball 3 and the valve body 1. The outer valve seat 4 is arranged at one end of the inner valve seat 5 close to the ball 3; one end of the outer valve seat 4 abuts against the ball 3 to form The other end of the hard sealing surface 6 abuts against the end surface of the inner valve seat 5; the outer valve seat 4 has a circumferential protrusion, and one end of the limit ring 17 is clamped on the protrusion to limit the inner valve seat 5 Axial displacement, the other end is fixedly connected with the inner valve seat 5.
[0031] A sealing ring 10 is provided between one end of the inner valve seat 5 and the ball...
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