- pig launcher and receiver trap
- Нефть и газ: устройство запуска и приёма очистных скребков
Универсальный англо-русский словарь. Академик.ру. 2011.
pig launcher and receiver trap
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Pigging — of the product in the pipeline is used to push it along down the pipe until it reaches the receiving trap the pig catcher .If the pipeline contains butterfly valves, the pipeline cannot be pigged. Ball valves cause no problems because the inside… … Wikipedia
