Since the material and fitting size of Hainiu Pipe Industry’s PE water supply pipes may be different from those of other manufacturers, the hot melt machine recommended by our company should be used when welding Shenzhen Hainiu PE water supply pipes to avoid The welding quality of PE pipes is affected by differences in hot melt temperature and die size.

The hot melt machine should maintain a temperature range of 200℃±10℃ for PE pipes and 230℃±10℃ for PB during the entire working process. In winter, it can be increased by 10℃-20℃ accordingly. , please adjust the temperature adjustment knob in the hot melt machine to obtain the correct hot melt temperature.

Transportation:

① When transporting pipes by vehicle, they should be placed on the flat bottom of the vehicle. When transported by ship, they should be placed in a flat cabin. During transportation, the entire length of straight pipes should be supported, and coiled pipes should be stacked neatly. Straight pipes and coiled pipes should be bundled and fixed to avoid collision with each other, and they should be stacked without touching sharp objects that may damage the pipes.

② When transporting pipe fittings, they should be neatly stacked layer by layer in boxes and fixed securely.

③ Pipes and fittings should be covered during transportation to avoid exposure to the sun and rain.

Extended information:

PE water supply pipe connection method:

Polyethylene pipes and pipes, pipes and PE pipes, pipes and accessories, and polyethylene pipes and There are many connection methods between metal pipes. Different connection methods have their own advantages and limitations. Users can choose the appropriate connection method according to the pipe diameter, working pressure, usage location and other environments.

The most commonly used connection methods for urban water supply polyethylene pipes are: hot melt connection, electrofusion connection, socket-type flexible connection, flange connection, steel-plastic transition joint connection, etc.

1. Hot-melt connection

Hot-melt connection uses special heating tools to heat the parts to be connected of polyethylene pipes or fittings under pressure to melt them and then remove the heat. Tool, apply pressure to join the two molten surfaces together and hold under steady pressure for a period of time until the joint cools. Hot-melt connections include hot-melt butt connections, hot-melt socket connections, and hot-melt saddle connections.

2. Electrofusion connection

Electrofusion connection is a special electrofusion pipe fitting with embedded resistance wire that is in close contact with the connection part of the PE pipe or pipe fitting to energize the PE pipe through the embedded resistance wire. The resistance wire heats the connection part, causing it to melt and join together until the joint cools down. Electrofusion connections can be used to join different types of polyethylene pipe or spigot fittings with different melt flow rates. Electrofusion connections are divided into electrofusion socket connections and electrofusion saddle connections.

Baidu Encyclopedia-PE water supply pipe