• Building drainage system: 3 inch PVC pipes are commonly used in drainage pipe systems of residential and commercial buildings, including rainwater drainage, sewage drainage, etc. Its excellent corrosion resistance and sealing properties ensure the long-term and stable operation of the system.
• Agricultural irrigation: In the agricultural field, 3-inch PVC pipes are widely used in irrigation systems, such as main water supply pipes or branch pipes, because their smooth inner wall reduces water flow resistance and helps improve irrigation efficiency. At the same time, their durability and anti-aging ability are also suitable for long-term outdoor use.
• Power cable protection: 3-inch PVC pipe can also be used as a protective sleeve for power cables to prevent the cables from mechanical damage, moisture and other environmental factors, ensuring the safety and stability of power transmission.
• Municipal engineering: In urban water supply and drainage projects, PVC pipes of this size are also widely used. They can be seen in new construction projects or replacements of aging metal pipes.
• Garden landscape design: In landscaping projects, 3-inch PVC pipes can be used to lay underground irrigation systems or as water pipes for small fountains, waterfalls and other water features.

Adhesive joining (solvent welding)

• Use specialized PVC pipe glue (also called solvent cement) to firmly bond pipes and fittings together.
• During operation, you need to ensure that the pipe ends and the inside of the pipe fittings are clean and dust-free, apply an appropriate amount of glue, quickly insert it and rotate it a certain angle to ensure even distribution, and then keep it for a few seconds to allow the glue to initially solidify.

Conexão do anel de vedação elástico

• In some cases where greater flexibility is required or to cope with slight displacement, pipe fittings with rubber sealing rings can be used for connection.
• During installation, simply put the fittings equipped with rubber rings on the pipe ends and push them into place. This method allows a certain degree of thermal expansion and contraction and ground movement, and is suitable for outdoor or long-distance pipeline systems.

Conexão de flange

• Flanges usually consist of two matching parts that are fixed to the ends of two pipe sections and fastened together by bolts, with a gasket placed in between to enhance the sealing effect.

3 inch PVC pipes usually comply with the corresponding national standards or industry standards to ensure their safety and reliability in different applications. When carrying out specific projects, choosing the appropriate specifications and types of PVC pipes requires considering factors such as design requirements, working pressure, and soil conditions.