Pigging in pipe before inspection, pipe pigging under low throughput intermittent operation; get rid of congealable oil, wax precipitation and incrustation in pipe to reduce backpressure and friction, and lower temperature.
英
美
- 管線(xiàn)內檢測前清管、低輸量間歇運行輸油管線(xiàn)清管；清除管線(xiàn)內部的凝油、結蠟、結垢，達到減小輸油回壓、減小磨阻、降低輸油溫度的目的。
