Float Valve Sub
Introduction:
Float valve Sub 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.
Function:
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 .
Available model:
FFJT241 FFJT228 FFJT209 FFJT203 FFJT178 FFJT165 FFJT159 FFJT127 FFJT105
When ordering please specify:
●Float valve type (Model F or Model G);
●Float valve size;
●Connection and O.D of sub.
Model F Float valve Model G Float valve
Specifications - Float valve Sub
1 float valve sub FFJT241 Φ241.3 7 5/8 REG B×B Φ121（5F6R） Φ76.2
2 float valve sub FFJT228 Φ228.6 7 5/8 REG B×B Φ121（5F6R） Φ76.2
3 float valve sub FFJT209 Φ209.6 6 5/8 REG B×B Φ121（5F6R） Φ71.4
4 float valve sub FFJT203 Φ203.2 6 5/8 REG B×B Φ121（5F6R） Φ71.4
5 float valve sub FFJT178 Φ177.8 4 1/2 REG B×NC50 B Φ88（4R） Φ71.4
6 float valve sub FFJT165 Φ165.1 4 1/2 REG B×NC50 B Φ88（4R） Φ71.4
7 float valve sub FFJT159 Φ158.8 4 1/2 REG B×NC46 B Φ88（4R） Φ71.4
8 float valve sub FFJT127 Φ127 3 1/2 REG B×NC38 B Φ61（2F3R） Φ50.8
9 float valve sub FFJT105 Φ104.8 2 7/8 REG B×NC31 B Φ48（1F2R） Φ38.1
