Double Function Arrow-shaped Back Pressure Valve Type SJF
group nameDownhole Tools
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Min Order1 piece
modelSJF
payment methodL/C, Western Union, MoneyGram, T/T
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update timeTue, 09 Oct 2012 20:07:14 GMT
Paramtents
FUNCTION drilling tools
CERTIFICATE API 7-1
Packging & Delivery
Min Order1 piece
Briefing
Detailed
The double function arrow-shaped back pressure valve type SJF is an integrated tool which has functions of both the arrow-shaped back pressure valve and the mud globe valve. The tool can not only prevent downhole kick from blowout, but also prevent the mud in the Kelly and hose from flowing out. Moreover, it can reduce mud loss and ensure a clean rig floor.
Specification Series and Performance Parameters
Type | O.D. mm（in.） | Upper Connection API | Lower Connection API | Max. Kick Preventing Pressure MPa | Cut-off Pressure MPa | Overall Length mm （in.） |
SJF89 | 89 (3 1/2) | NC26 | NC26 | 50 | 0～3 | 500 (19.69) |
SJF121 | 121 (4 3/4) | NC38 | NC38 | 50 | 0～3 | 474 (18.66) |
SJF159 | 159 (6 1/4) | NC50 | NC50 | 50 | 0～3 | 561 (22.09) |
SJF165 | 165 (6 1/2) | NC50 | NC50 | 50 | 0～3 | 642 (25.28) |
SJF178 | 178 (7) | 5 1/2FH | NC50 | 50 | 0～3 | 561 (22.09) |
Specification Series and Performance Parameters
Type | O.D. mm（in.） | Upper Connection API | Lower Connection API | Max. Kick Preventing Pressure MPa | Cut-off Pressure MPa | Overall Length mm （in.） |
SJF89 | 89 (3 1/2) | NC26 | NC26 | 50 | 0～3 | 500 (19.69) |
SJF121 | 121 (4 3/4) | NC38 | NC38 | 50 | 0～3 | 474 (18.66) |
SJF159 | 159 (6 1/4) | NC50 | NC50 | 50 | 0～3 | 561 (22.09) |
SJF165 | 165 (6 1/2) | NC50 | NC50 | 50 | 0～3 | 642 (25.28) |
SJF178 | 178 (7) | 5 1/2FH | NC50 | 50 | 0～3 | 561 (22.09) |
