Periodic inspection of composite hoses
Flanges and joints are often used in the processing of rubber tubes. As a professional manufacturer, we will introduce the precautions in the installation process of flange joints.
First, the installation of flanged rubber pipe
1. 8.8-class screws are used for installation. There must be no dislocation distortion. The pipeline installation and flange must be on the same centerline. It is not allowed to use a lever and a clamp to force the alignment.
2, “O-ring” material uses “butyl nitrile rubber”, “O-ring” should be checked before installation to ensure no damage can be used. Carefully check the model and size of the “O-shaped” ring, and do not miss or misplace.
3. During the installation process, confirm the number, mark, and direction between the pipe and the pipe, and then remove the blockage to see if there is any foreign matter in the pipe. After confirming the error, apply a little butter or Vaseline to the “O” ring. Install it. Pipes that have not been installed on the same day must be blocked before leaving work. 4. The flange and the flange should be parallel and there should be no obvious misalignment. Install a flat washer, spring washer or self-locking washer to tighten the diagonally. The bolt after tightening should expose the nut 2-3 teeth.
5. The bracket shall not be placed on the arc tube section and shall be placed on the straight pipe section near the arc of the elbow. The mounting diameter of the bracket is 16-18MM, and the average is 0.7-meter per meter. The diameter of the pipe is 20-32MM and the average is 1.2 meters. The pipe diameter is 38-48MM and the average is 1.6 meters. However, each pipe must be added near the arc. support.
Second, the installation of the card sleeve connector
1. When the ferrule joint is installed, the pipe can not be cut with a gas welding cutter and a pipe cutter to prevent the pipe mouth from being squeezed, and the pipe diameter becomes small, which affects the installation quality and causes leakage.
2. Carefully check the outer diameter of the pipe and the ferrule ring and the inner diameter gap of 0.3MM before installation. There is no longitudinal scratch at the nozzle to 100MM, and there must be a straight line segment of 50MM or more at the elbow, and the damage of the bending die and the clamp to the nozzle (installation of the ferrule ring) when checking the elbow can be installed. .
3. When installing the pipe, confirm that the pipe is inserted into the bottom of the ferrule joint, and make sure that the ferrule joint and the straight part of the pipe are perpendicular to the other pipe.
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