Float valve
Brief introduction :
Type ZFF float valve is a kind of unidirectional check valve which can be used in preventing from blowout and well kick to reduce loss of drilling fluid and keep the rig floor clear.
Specification:
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Technical Specification :
Type
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O.D.(mm)
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Bearing Back Pressure
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Connection
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Drill collar (in)
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ZFF127
|
φ127
|
35MPa 70MPa
|
NC38×NC38
|
5″
|
ZFF159
|
φ159
|
35MPa 70MPa
|
NC46×NC46
|
6 1/4″
|
ZFF165
|
φ165
|
35MPa 70MPa
|
NC50×NC50
|
6 1/2″
|
ZFF178
|
φ178
|
35MPa 70MPa
|
NC50×NC50
|
7″
|
ZFF203
|
φ203
|
35MPa 70MPa
|
6 5/8REG×6 5/8REG
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7″
|
ZFF228.6
|
φ228.6
|
35MPa 70MPa
|
7 5/8REG×7 5/8REG
|
9″
|
ZFF241
|
φ241
|
35MPa 70MPa
|
7 5/8REG×7 5/8REG
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9 1/2″
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|
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