Connection Method of Waterproof Casing Pipe To Pipe

The ways to connect waterproof casing pipe to pipe include flange connection, welding, flexible connection and compression flange connection. When choosing, you need to consider the engineering requirements, pipe material, working environment and safety standards.

Connection method

1. Flange connection

Flange connection is a relatively reliable connection method, suitable for occasions with strong pressure bearing capacity. When making flange connection, it is necessary to ensure that the pipe diameter is consistent with the diameter of the waterproof casing pipe so that the flange on the pipe can correspond well with the flange of the waterproof casing pipe. When connecting, the bolts should be tightened and the nuts are usually galvanized to prevent rust.

2. Welding

Welding is another connection method. The weld must be completed in one time. When welding, sub-arc welding is usually used for primer, and X-ray flaw detection is performed to ensure the quality of welding. Welding can provide high sealing and strength, but it requires professional technology to perform.

3. Flexible connection

Flexible connection is achieved through rubber sealing rings and sealing fillers inside the casing pipe, which is suitable for water cast iron pipes, reinforced concrete and other scenes. This connection method has good waterproof and sealing performance. During installation, the pipe passes through the inside of the casing pipe. After installing the rubber sealing ring, the gap between the pipe and the casing pipe is filled and sealed with sealing materials.

4. Compression flange connection

In some specific flexible waterproof casing pipe designs, after the pipe passes through the casing pipe, the end with screws is a compression flange. A rubber O-ring is installed inside the compression flange. After tightening the screws, the O-ring deforms and presses on the pipe to form a sealing surface, achieving a sealing and waterproof effect.

Connection precautions

1. Choose a suitable connection method

Choose a suitable connection method according to the actual situation, considering the use environment, temperature, pressure and other factors of the cable.

2. Pay attention to the length and diameter of the casing pipe

When connecting, you need to pay attention to whether the length and diameter of the casing pipe meet the requirements, otherwise it will affect the stability of the connection.

3. Check whether the connection is firm

After the connection is completed, you need to check whether the connection is firm to avoid looseness or other problems.

4. Prevent cable damage

When connecting, you need to be careful not to damage the cable to avoid the cable being crushed or worn during connection.

5. Pay attention to safety

When connecting, you need to wear protective equipment such as gloves and glasses to avoid safety accidents.

Summary

When choosing a connection method, you need to determine the most appropriate connection method based on specific project requirements, pipeline materials, working environment and safety standards.