Brief introduction ：
Arrow Back Pressure Valve: It is an integrated tool which can prevent dowhole kick from blowout, also keep off the blowout accident. Thus reducing mud loss and ensuring a clean rig floor.
Specifications:
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Technical Specifications :
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Model
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O.D (mm)
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I.D (mm)
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Connection thread
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Max sealing pressure (Mpa)
|
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FJ89
|
89
|
33
|
NC26
|
35 70
|
|
FJ105
|
105
|
44
|
NC31
|
35 70
|
|
FJ121
|
121
|
56
|
NC38
|
35 70
|
|
FJ159
|
159
|
70
|
NC46
|
35 70
|
|
FJ165
|
165
|
82
|
NC50
|
35 70
|
|
FJ168
|
168
|
82
|
NC50
|
35 70
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|
FJ178
|
178
|
82
|
5-1/2FH
|
35 70
|
|
FJ203
|
203
|
82
|
6-5/8REG
|
35 70
|
|
FJ229
|
229
|
82
|
7-5/8REG
|
35 70
|
|
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