CAMTOP Float Valve Sub is an important drilling tool installed near the drill bit for one-way flow control and automatic blowout protection. Available in Model F and Model G.
CAMTOP Float Valve Sub
Description
|
Model F Spring Plunger Type |
Model G Flapper Type |
Automatic Blowout Protection |
Product Overview
CAMTOP Float Valve Sub is an important tool in petroleum exploration and drilling engineering. It is connected at the upper part of the drill bit, and the float valve assembly inside the sub is located near the bit connecting thread. The float valve sub can also be positioned at any necessary point of the drill string to provide reliable one-way flow control and blowout protection.
When connected with a single piece pipe, the CAMTOP Float Valve Sub prevents mud from coming back into the drill string, stops mud from returning upward and blocking the hole, and avoids blowout in the drill string. When a blowout takes place, the nozzle is closed automatically by the valve cap of the float valve assembly, ensuring safe and controlled drilling operations.
Two valve types are available: Model F (spring plunger type) and Model G (flapper type). Both are designed for high-pressure, high-reliability service and are interchangeable with standard drill string connections.
Specifications – Float Valve Sub
| Model | Sub O.D. (mm) | Joint Connection | Valve O.D. (mm) | I.D. (mm) |
|---|---|---|---|---|
| FFJT241 | 241.3 | 7 5/8 REG | ϕ121 | ϕ76 |
| FFJT228 | 228.6 | 7 5/8 REG | ϕ121 | ϕ76 |
| FFJT209 | 209.6 | 6 5/8 REG | ϕ121 | ϕ76 |
| FFJT203 | 203.2 | 6 5/8 REG | ϕ121 | ϕ71 |
| FFJT178 | 177.8 | 4 1/2 IF | ϕ98 | ϕ71 |
| FFJT165 | 165.1 | 4 1/2 REG | ϕ88 | ϕ57 |
| FFJT146 | 146 | 4 1/2 REG | ϕ88 | ϕ57 |
| FFJT121 | 121 | 3 1/2 REG | ϕ61 | ϕ51 |
| FFJT108 | 108 | 3 1/2 REG | ϕ61 | ϕ38 |
Key Features
|
Two Valve Types Model F (spring plunger) and Model G (flapper) for different drilling conditions. |
Automatic Shutoff Valve cap closes automatically when blowout occurs, preventing backflow. |
|
One-Way Flow Control Allows normal circulation downhole while blocking fluid return. |
Standard Connections Compatible with API REG and IF connections for easy integration. |
|
Drill Bit Protection Installed near the bit to prevent cuttings and mud from entering the drill string. |
High Reliability Robust construction designed for harsh oilfield drilling environments. |
When Ordering Please Specify
| ✔ Float valve type (Model F or Model G) |
| ✔ Float valve size |
| ✔ Connection and O.D. of sub |
Applications
| ▶ Petroleum exploration | ▶ Drilling engineering | ▶ Drill bit protection |
| ▶ Well control operations | ▶ Mud circulation systems | ▶ Onshore and offshore drilling |
Contact CAMTOP for a QuoteGet competitive pricing and technical support for CAMTOP oilfield tools.
✉ SALES@CPOSL.COM |

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