Gas pipelines, as the carrier of transmission media used mainly in people's homes, must be carefully installed. What should be noted about gas pipeline installation? Here Xiaobian introduces seven precautions for gas pipeline installation.
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1. The gas pipeline should be laid along the wall surface of non-combustible materials. When meeting other pipelines, two things need to be noted:
When laying horizontally in parallel, the net distance should not be less than 150mm; when laying in parallel, the net distance should not be less than 100mm, and should be located on the outside of other pipelines; in cross laying, the net distance should not be less than 50mm.
2. When the gas pipeline needs to cross the bathroom, toilet, ceiling (vertical wear) and living room, the pipeline should have no interface.
3, indoor gas pipeline should not cross below the bucket. When it is necessary to cross, additional casing should be installed. The diameter of the casing pipe should be larger than that of the gas pipe. The gas pipeline and the casing should have no interface. Both ends of the casing should extend 20 mm from the side of the water bucket.
4. The tightness test shall be made after the completion of the gas pipeline installation. The test pressure shall be 300mm water column. Special attention shall be paid here. The pressure does not drop to be qualified within 3 minutes.
5, burning appliances and electric meters, electrical equipment should be set in the wrong position, the level of the net distance must not be less than 500mm. When it can not be dislocated, there should be thermal protection measures.
6. Fireproof measures must be taken when the wall surface of the burning appliance is in wood or other flammable materials.
7. The distance between the sides of various types of burning appliances and walls, buckets, door frames, etc. and the distance between burning appliances and burning appliances should not be less than 200mm. When the two burning appliances or a burning appliance and water bucket are arranged at right angles, the sum of the two sides of the inlet and outlet walls shall not be less than 1.2m.
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