Adhesive bonding: The most commonly used connection method for PVC plastic pipes, which is low-cost, simple and fast, and can be achieved with only adhesive pre bonding. It has a wide range of applications and a wide range of applications.

Hot melt connection: PPR and other pipes generally use hot melt connection. This is a traditional and commonly used connection method, which has the advantages of strong and durable interfaces, high joint strength and tightness. However, the hot melt contact surface is prone to significant welding deformation, which affects the load-bearing capacity of the joint. In addition, fusion defects such as cracks, pores, and incomplete penetration are prone to occur in hot melt joints, which can reduce the strength of the joint, cause stress concentration, and damage the density of the weld. Therefore, it is necessary to pay attention to safety and operating standards in hot melt connections to avoid accidents such as fires and burns.

Flange connection: Plastic pipes and metal pipes also often use flange connection, mainly used at the connection of water pipes and areas that often need to be disassembled. The flange connection adopts metal pipe connection, which can avoid hot melt connection and ensure the strength and quality of the connection. When connecting, flange connections can be made using methods such as plastic gun welding or direct welding. Flange connection is one of the commonly used connection methods in home decoration, but it is important to choose suitable pipe fittings before connecting.

Socket connection: Socket connection is a suitable connection method for plastic pipes, etc. It has the advantages of simple, fast, time-saving, and labor-saving connection, as well as lower installation costs. Socket connections are generally suitable for pipes with larger inner diameters. The advantages of socket connection are simple connection, time-saving and labor-saving, and lower installation cost. In socket welding connections, due to the expansion treatment of the pipe mouth, the pipe mouth of the fitting must be slightly larger than the outer diameter of the pipe mouth in order to insert the pipe into the pipe mouth for welding construction, making the construction process more efficient. In short, socket connection is a simple, convenient, and efficient way of connecting water supply pipelines.

Thread connection: Thread connection is a common method of connecting water pipes, also known as threaded connection. It connects pipes with internal and external threads, mainly used for connecting steel pipes, copper pipes, and high-pressure pipes. The type selection of threaded fasteners should be based on their characteristics and application. The advantages of threaded connections are that the interface is firm and durable, not easy to leak, the joint strength and tightness are high, and there is no need for frequent management after use. In the connection between high-pressure plastic pipes and seamless steel pipes, threaded connection is the most important and widely used connection method.

Flexible connection: Socket flexible connection is a new type of connection method developed from the principle of polyethylene pipeline socket flexible connection. It directly inserts one end of the polyethylene pipe into the specially designed socket of the pipe or fitting, and achieves the purpose of connecting the PE pipe and the fitting by pressing and sealing with the locking ring inside the socket to resist pulling and the rubber sealing ring to press and seal. This connection method has the advantages of firm socket, fast connection, and good sealing, and is suitable for connecting various pipeline systems.