PPSU PEX Fittings Are Light In Weight, Easy To Transport And Install

　　PEX is light in weight, easy to transport and install, and has no loss. The end faces of the two pairs of nozzles are aligned and fixed without misalignment. Use the PE welding rod that is fused with the connected pipe, heat the joint and the welding rod with a small red flame or a small hot-air beam from a small nozzle, and hook welding on the circumference

　　PEX is light in weight, easy to transport and install, and has no loss. Align and fix the end faces of the two pairs of nozzles without misalignment. Use the PE welding rod that is fused with the connected pipe, heat the joint and the welding rod with a small red flame or small hot-air beam from a small nozzle, and hook and weld more than four places on the circumference (the weld is longer) to connect the two The pipe connection is fixed.

　　Fixed-length length: The fixed-length length should be within the usual length range, which is a certain fixed-length dimension required in the contract. However, it is impossible to cut to a fixed-length length in actual operation. Therefore, the standard specifies the allowable positive deviation value for the fixed-length length. The yield rate of the fixed-length tube produced by pe corrugated pipe is larger than that of the usual length tube. , It is reasonable for the manufacturer to raise the price. The rate of price increase varies from company to company. Generally, the price increase is about 10% on the basis of the base price.

　　1. Before welding, check whether the two ends of the PPSU PEX fittings pipe to be welded are cut flat (if the port is not flat. It should be trimmed). Control the surface to be welded at the center of the trough of the pipe, and adjust the two pipes to be welded to the same axis (make the disconnected parts of the pipe align as much as possible); a gap of 1-3m should be left at the interface to facilitate welding (but the gap should generally not exceed 5mm).

　　2. When the pipe top 0.5m or more is used for mechanical backfilling, it should be carried out evenly from both sides of the pipe axis at the same time, tamped, and rolled.

　　3. When the trench is supported by steel sheet piles, the steel sheet piles can be removed only after the backfill reaches the specified height. After removal, the pile hole should be backfilled in time, and measures should be taken to fill it. When sand is used for filling, the water can be flushed to be compact; the measures of grouting while pulling out the pile can also be used.