Products » CAMTOP Float Valve Sub

CAMTOP Float Valve Sub

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.

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 Quote

Get competitive pricing and technical support for CAMTOP oilfield tools.

SALES@CPOSL.COM
📞 WhatsApp: +86 186 2172 3891

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Contact Info

No. 432, Fute North Road, Pudong District, Shanghai, Chian

Phone: +86.21.58432768

Mobile: Whatsapp: 86-18621723891

Fax: +86.21.58432768

Web: www.camtop-oilfieldtools.com

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