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| previous | upper seal - collezione «Ingegneria meccanica: Industria petrolifera» - Maria Cristina Basti | next |
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Ingegneria meccanica: Industria petrolifera
| English |
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| Noun phrase |
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| Countable |
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| A rubber packer designed to close off the area between the ram and the blowout preventer body. |
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| Sh91 |
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| Hydril rams provide a large volume of feedable rubber in the upper seal and in the front packer. As upper seal and front packer wear occurs, more rubber is compressed into a sealing engagement to maintain a seal off. |
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| CC88 |
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| Petroleum Engineering |
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| packing unit |
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| guarnizione superiore |
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