Descriptions:
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. 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 .
When ordering please specify:
● Float valve type (Model F or Model G);
● Float valve size;
● Connection and O.D of sub.
| Model | Sub O.D.(mm) | Connection | valve O.D.(mm) | I.D.(mm) |
| FFJT241 | Φ241.3 | 7 5/8 REG BxB | Φ121 (5F6R) | Φ76.2 |
| FFJT228 | Φ228.6 | 7 5/8 REG BxB | Φ121 (5F6R) | Φ76.2 |
| FFJT209 | Φ209.6 | 6 5/8 REG BxB | Φ121 (5F6R) | Φ71.4 |
| FFJT203 | Φ203.2 | 6 5/8 REG BxB | Φ121 (5F6R) | Φ71.4 |
| FFJT178 | Φ177.8 | 4 1/2 REG BxNC50B | Φ88(4R) | Φ71.4 |
| FFJT165 | Φ165.1 | 4 1/2 REG BxNC50B | Φ88(4R) | Φ71.4 |
| FFJT159 | Φ158.8 | 4 1/2 REG BxNC46B | Φ88(4R) | Φ71.4 |
| FFJT127 | Φ127 | 3 1/2 REG BxNC38B | Φ6(2F3R) | Φ50.8 |
| FFJT105 | Φ104.8 | 2 7/8 REG BxNC31B | Φ48(1F2R) | Φ38.1 |
