Introduction to non-excavation construction technology

As the country modernizes, pipeline construction has become an essential part of urban development. With the rapid pace of city expansion, underground networks are becoming increasingly complex, with pipelines crisscrossing beneath the surface while towering structures rise above. Traditional open-cut excavation methods not only shorten the lifespan of roads but also disrupt nearby residents’ daily lives and harm the surrounding environment. These disruptions cause inconvenience for both work and living conditions. Moreover, when pipelines are installed at greater depths, the construction area expands, increasing complexity and investment costs. To address these challenges, especially in balancing existing infrastructure with new pipeline projects, non-excavation construction technology has emerged as a viable solution in China. This method minimizes surface disruption and reduces environmental impact, making it ideal for densely populated urban areas. Non-excavation techniques are now widely applied in municipal water supply and drainage systems, power line installations, and bridge reinforcement projects. Several types of non-excavation technologies have been developed, including shield tunneling, pipe jacking, and horizontal directional drilling (HDD), commonly known as "pulling pipe" technology. Let’s take a closer look at the construction process and application of pulling pipe technology. The equipment used in this method includes an underground positioning system and horizontal directional drilling (HDD) machinery. The positioning system is divided into two parts: an aerial component and an underground one. The underground sensor consists of a carbon rod (signal transmitter) and a probe box, while the ground-based signal receiver includes a guide and a remote sensor. The HDD equipment serves as the core power source for the pulling pipe process. It provides the necessary propulsion during the guidance phase and applies pulling force during hole-making, hole-forming, and pipe installation. Therefore, securing the power equipment properly is crucial to ensure smooth and efficient operations. With continuous advancements in technology, non-excavation methods are becoming more precise, cost-effective, and environmentally friendly. Companies like Bazhou Lutong Engineering Co., Ltd. are leading the way in implementing these innovative solutions, helping cities build sustainable infrastructure for the future. For more information, visit their official website: http://.

Water Solenoid Valve Coil

The category of Solenoid Valve Coil used in water Solenoid Valve.


1. Solenoid coil range in hole diameter from 5 mm to 28 mm, more bigger is available.
2. Common AC and DC voltages (6V DC, 12V DC, 24V DC, 36V DC, 48V DC, 24V AC, 110V AC, 115V AC, 220V AC, 230V AC, 240V AC) are all available, others can be customized.
3. Many termination options are available.
4. Using high quality wire which has UL approved;
5. Using high quality permeability magnetic material which contain low carbon
6. Using high quality housing material like PA66, PBT, PPS, BMC and so on.
7. Insulation class can be B, F, H, N, C;
8. Protection class can be IP65, IP67 & IP69K;

Water Solenoid Valve Coil, Solenoid Coil For Water Solenoid Valve

NINGBO BRANDO HARDWARE CO.,LTD , https://www.brandopneumatic.com

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