High pressure wall piercing sleeve is also called wall piercing pipe, waterproof sleeve, wall embedded pipe, waterproof sleeve is divided into rigid waterproof sleeve and flexible waterproof sleeve, electric power used for conduction called AC high pressure wall piercing sleeve, from the material can be divided into dry capacitive AC wall piercing sleeve and high voltage porcelain insulation AC wall piercing sleeve, respectively referred to as silicone rubber sleeve and high voltage porcelain casing. This paper introduces the sealing specification of high - pressure wall - through casing.
High pressure through-wall casing sealing specification:
1. Before installing the pipe into the casing, the sundries and rust in the casing should be removed first, and the anti-rust paint should be brushed on the pipe wall. After the anti-rust paint is dry, the pipe can pass through the casing, and the slope of the pipe and the support and hanger can be adjusted and fixed.
2. Wash the pipe wall with clean water first to ensure that the pipe wall is wet, and then fill the middle 1/3 of the casing with fine stone concrete (mixed with 12%USA expansion agent), and vibrate and compact around the upper and lower parts of the pipe.
3. The second plugging from the outside of the wall, the method is the same as the first plugging method.
4. Block the inner side of the wall for the third time.
