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Product Description of Float Valve Sub
Float valve Sub/Check valve is an important tool in petroleum exploration and drilling engineering. The float valve sub is connected at upper part of drill bit. The float valve sub is near the bit connecting thread. The float valve sub can also be used at different necessary position of drill string when required. The main application is, when connected with single piece pipe, it prevents mud from coming in and up blocking the hole. When blowout takes place, blowout in drill string will be avoided because nozzle is closed automatically by valve cap of the float valve assembly.
Main Technical Parameters
|
Model |
Sub OD(mm) |
Connection |
Valve OD (mm) |
ID (mm) |
|
FFJT241 |
Φ243.1 |
7-5/8 REG B×B |
Φ121 (5F6R) |
Φ76.2 |
|
FFJT228 |
Φ228.6 |
7-5/8 REG B×B |
Φ121 (5F6R) |
Φ76.2 |
|
FFJT209 |
Φ209.6 |
6-5/8 REG B×B |
Φ121 (5F6R) |
Φ71.4 |
|
FFJT203 |
Φ203.2 |
6-5/8 REG B×B |
Φ121 (5F6R) |
Φ71.4 |
|
FFJT178 |
Φ177.8 |
4-1/2 REG B×NC50 B |
Φ88 (4R) |
Φ71.4 |
|
FFJT165 |
Φ165.1 |
4-1/2 REG B×NC50 B |
Φ88 (4R) |
Φ71.4 |
|
FFJT159 |
Φ158.8 |
4-1/2 REG B×NC46 B |
Φ88 (4R) |
Φ71.4 |
|
FFJT127 |
Φ127 |
3-1/2 REG B×NC38 B |
Φ61 (2F3R) |
Φ50.8 |
|
FFJT105 |
Φ104.8 |
2-7/8 REG B×NC31 B |
Φ61 (2F3R) |
Φ38.1 |
Product Description of Float Valve Core
The float valve core is a one-flow valve and is set in the inner cavity of the float valve joint, which can effectively prevent formation and wellbore annulus fluids from gushing out from the drilling tool, thereby ensuring well control safety.
