installation method
Concealed tube
Pipes embedded in walls, floors, etc. can prevent expansion. Both pressure and tensile stress are absorbed without damaging various materials. If the pipeline has insulating materials (to meet the standard), these insulating materials can allow more expansion.
External pipe network
When the pipeline is installed outside, the compensation of linear expansion should be considered. The basic requirements are: firstly, use natural compensation as much as possible; secondly, use expansion ring compensation, and again use fixed brackets and free hangers to compensate. When installing the anchorage, pay attention to dividing the pipeline into various parts to direct the expansion force in the desired direction.
Installation of pipes in the shaft
If an anchor is installed near the two branch pipes of the main pipe, the main riser pipe can expand or contract vertically between the two floor slabs. The distance between two anchor points in the shaft cannot exceed 3 meters. Other methods can also be used to compensate for the expansion phenomenon. For example, install "expansion branch pipes" from the branch of the supervisor.
The connection method of PP-R pipe and pipe fittings generally adopts hot melt or electrofusion connection. When connecting, the pipe and pipe fittings are heated to a critical melting point at the same time, and then the pipe is inserted straight into the pipe fitting immediately. The welded pipe has good contact performance and success. High rate