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Float Valve Sub

Float Valve Sub

 

Float valve sub

 

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 assembly in sub is near the bit connecting thread and the float valve sub also can be necessary position of drill string. The main application is,when connect with single piece pipe, to prevent mud coming in, mud up returning and blocking hole. When blowout takes place,blowout in drill string will be avoided because nozzle is closed automatically by valve cap for float valve assembly .

When ordering please specify:

  1. Float valve type (Model F or Model G);
  2. Float valve size;
  3. Connection and O.D of sub.

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

ф121

ф76

FFJT228

228.6

7 5/8 REG

ф121

ф76

FFJT209

209.6

6 5/8 REG

ф121

ф76

FFJT203

203.2

6 5/8 REG

ф121

ф71

FFJT178

177.8

4 1/2 IF

ф98

ф71

FFJT165

165.1

4 1/2 REG

ф88

ф57

FFJT146

146

4 1/2 REG

ф88

ф57

FFJT121

121

3 1/2 REG

ф61

ф51

FFJT108

108

3 1/2 REG

ф61

ф38

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