Shandong Laiduan Machinery Co.,ltd

Shandong Laiduan Machinery Co.,ltd  


Con:Jun Li


Tel:(86)634 6512388

Fax:(86)634 6512388

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Experience introduction of ductile iron pipe technology construction
Jun 30, 2017

1. For easy installation, the rubber ring can be soaked with water first.

2. In hot summer, lubricating oil is suitable for use with vegetable oil; In cold winter, the rubber ring can be preheated with hot water to reduce hardness and install quickly.

3. If you need to borrow in the pipe installation, in the case of the use of the pipe itself can not meet the corner, according to the angle of the need to borrow, after the calculation of the pipe socket after cutting the oblique mouth, so as not only to increase the angle of borrowing, but also to ensure safe use.

4. If water pressure is tested unconditionally, air pressure may also be considered.

5. Trench backfill should be layered compaction, if the pipeline through the road, in order to avoid the pressure of bad tube body, can be backfill of coarse sand to the top of the pipe.

6. In the construction sometimes occurs the interface dripping. In order to avoid this phenomenon, in the installation should be strictly in accordance with the norms of construction, the need to ensure that each pipe is installed in place, for large caliber of the pipeline to check the situation of each interface aprons.

7. During the summer construction process, the interface can be properly covered with soil.

8. Tee and elbow must be concrete buttress.

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