2. Install the flanges with grooved rings on the pipes that need to be connected.
3. The port of the pipe needs to be processed by a 90-degree flanging process. After the treatment, the plane of the port of the pipe needs to be ground. After grinding, it should be vertical and flat, and there is no doubt about burrs, bumps and deformation, and the nozzle needs to be rounded with special tools. .
4. Another simple method is to use the finished product to flange the short pipe and then weld it on the pipe.
5. Embed the stainless steel sealing ring of the O-shaped rubber sealing ring installed on both sides in the flange with groove ring. The inner hole of the sealing ring is the same as the inner diameter of the pipe.
6. Then connect the flange holes with bolts, and the bolt components need to be tightened symmetrically.
7. When tightening the butt welding flange, attention should be paid to ensure that the tightness of each joint should reach the required specification.