During excavation, if a gas warning tape is found, it indicates that there is a gas pipeline 0.3 to 0.5 meters below, which plays a warning and protection role. Next, let's talk about the specifications and key points of embedding of gas pipeline warning tape.

Basic specification of warning tape for gas pipeline

Product Name: gas pipeline warning tape, underground warning tape, PE warning tape

Product material: PE, wide wire, wide aluminum foil

Product specifications: PE buried warning belt: 10 cm, 15 cm, 20 cm, 30 cm, 40 cm, 50 cm, 100 cm. Detectable ground burial warning belt: 15 cm, 20 cm.

Product specification: PE underground warning tape: 10 cm, 15 cm, 20 cm, 30 cm, 40 cm, 50 cm, 100 cm. Detectable underground warning tape: 15 cm, 20 cm.

Service commitment: unconditional return of 90 days quality problems, value-added invoice.

Key points for embedding warning tape of gas pipeline

1. Trench excavation.

(1) The excavation of concrete pavement and asphalt pavement shall be cut by cutting machine.

(2) The pipe trench shall be excavated according to the plane position and elevation specified in the design. When manual excavation is adopted and there is no groundwater, the reserved value at the bottom of the trench shall be 0.05 ~ 0.10m; Before pipeline installation, the bottom shall be manually cleaned to the design elevation.

(3) The width and working dimension of the trench bottom shall be determined according to the actual situation on site and the pipeline laying method. wait.

2. Backfill.

(1) Frozen soil, garbage, wood and soft materials shall not be used for backfilling. The backfill on both sides of the pipeline and within 0.5m above the pipe top shall not contain debris such as gravel and bricks, and shall not be backfilled with lime soil. The stones in the backfill soil 0.5m above the pipe top shall not be more than 10%, the diameter shall not be more than 0.1M, and shall be evenly distributed.

(2) The support of the trench shall be backfilled and compacted at both sides of the pipeline and 0.5m above the pipe top, and then removed under the condition of ensuring safety, and the gap shall be filled with fine sand.

(3) During trench backfilling, the suspended part at the bottom of the pipe shall be backfilled first, and then both sides of the pipe shall be backfilled. wait.

3. Laying of warning tape.

(1) Warning tapes shall be laid continuously along the buried gas pipelines. Before laying the warning tape, the laying surface shall be compacted and laid flat directly above the pipe. The distance from the pipe should be 0.3 ~ 0.5m, but it shall not be laid in the subgrade and pavement.

(2) The warning tape shall be made of yellow polyethylene and other materials that are not easy to decompose, and shall be printed with obvious and firm warning words. The font shall not be less than 100 * 100 mm.

The above is the basic knowledge of the gas pipeline warning tape introduced to you by the editor. It is mainly introduced to you in terms of specification and embedding. I hope it will be helpful to you! For more information, please visit our website http://webtest2.daoshangbao.cn Consult.