Where are ERW pipes used?
ERW (resistance Welded) pipes are widely used in various industries due to their cost-effectiveness, dimensional accuracy and reliable performance. The following is a brief classification of their main applications and technical details:
1. Oil and gas
Transmission pipeline:
Crude oil/natural gas with a conveying pressure of ≤16mpa (API 5L X42-X65 pipeline).
For example, the gas gathering and transportation network in Sichuan saves 15-20% compared with seamless pipelines.
Casing and conductor tube:
Surface protection of Wells (outer diameter tolerance ±0.5%, 5CT per API)
2. Urban infrastructure
Distribution of urban gas:
Seventy percent of urban pipe networks worldwide (such as the gas pipe network in Beijing) have been replaced with cast iron/polyethylene pipes.
Coated with 3PE (epoxy resin + adhesive + polyethylene), it is corrosion-resistant for over 30 years.
Water supply system
Drinking water pipeline (DN50-DN1200, ASTM A135).
