FIELD: machine-building industry, particularly, oil and gas producing and processing industries; applicable in designing of flanged and quick-break joints of wellhead equipment, main pipelines, joints of pumping units with pipelines. SUBSTANCE: flanged joint has sealing metal gasket in grooves of joint sealed surfaces. Gasket has protective flexible sealing ring installed in internal circular groove made in gasket. Ring is made of engagement with sealed surfaces of equipment joint. EFFECT: increased service life of equipment, higher fire and ecological safety of oil and gas producing and processing equipment and increased technical-and-economic effect. 1 dwg
Title | Year | Author | Number |
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FLANGE JOINT OF WELL-HEAD EQUIPMENT | 1996 |
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SHUTOFF DEVICE OF WELLHEAD EQUIPMENT | 1996 |
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WELLHEAD SEALING DEVICE | 1997 |
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|
RU2168091C2 |
Authors
Dates
2002-01-20—Published
1998-03-25—Filed