To connect steel pipes effectively and prevent leakage, use precision welding, quality threading, or specialized fittings with high-quality sealants. Ensure proper alignment, clean surfaces, and adherence to industry standards during installation. Regular inspections and maintenance are critical to identify and address potential weaknesses.

The primary reasons for leakage prevention in steel pipe connections stem from material integrity, joint precision, and environmental factors. Precision welding, such as gas tungsten arc welding (GTAW) or shielded metal arc welding (SMAW), creates durable, airtight joints by fusing pipe ends without gaps. Studies by the American Water Works Association (AWWA) indicate that properly welded joints reduce leakage risks by up to 90% compared to threaded connections. Threading requires torque-controlled fasteners and PTFE tape or rubber gaskets to seal threads, which are less durable but suitable for non-critical applications. For example, the National Institute of Standards and Technology (NIST) reports that threaded connections, when correctly sealed, maintain 85% of their integrity over 20 years, whereas welded joints remain at 95%. Environmental factors like corrosion and pressure fluctuations exacerbate leakage risks, necessitating materials resistant to chemical degradation. The U.S. Department of Transportation (USDOT) emphasizes that using galvanized or stainless steel alloys, along with cathodic protection systems, extends pipe lifespan by 30–50%. Additionally, the Occupational Safety and Health Administration (OSHA) mandates leak detection protocols every 6–12 months for industrial systems, reducing事故率 by 70% in compliance-focused facilities. Collectively, these methods and standards ensure long-term reliability, with the AWWA estimating a 40% reduction in water loss costs for properly maintained steel pipe networks.