HDPE double wall corrugated pipe is a new type of lightweight pipe made of high-density polyethylene, with light weight, high pressure resistance, long service life, etc. The following are 2 common connection methods for HDPE double wall corrugated pipe:
- Electrofusion connection
That is, the first pre-buried electrofusion fittings for fusion, to be cooled and then connect the pipe and fittings. Electrofusion connection is suitable for the installation of environmental restrictions, difficult to heat fusion connection. If the connection is the same material of plastic pipe, you need to use special electrofusion fittings.
- Socket hot melt connection
HDPE double-wall corrugated pipe joints between the pipes need to use elastic sealing rubber ring connection socket interface, should ensure that the rubber sealing ring is installed in the socket of the second or third wave between the peak of the groove, before connecting the HDPE double-wall corrugated pipe need to be cleaned inside the mouth of the socket in order to avoid reducing the sealing ring of the tightness. If the connection is to N400 and below HDPE double-wall corrugated pipe, one person will use cotton rope to lift the socket of the pipe, and the other person will use a long pry bar to insert it diagonally into the foundation and hold it against the transom in the center of the end of the double-wall corrugated pipe, and then the pipe to be connected is inserted into the socket of the HDPE double-wall corrugated pipe slowly, and installed to the predetermined position; if it is HDPE double-wall corrugated pipe of DN400 or above, two For HDPE double wall corrugated pipe above DN400, two manual chain cranes can be used to pull the pipe joints into place.
