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>> products >> Drilling Tools >> Joint
 
product name: Float Valve Sub
Description:
Float Valve Sub is usually connected on the top of the bit to control down hole liquid. While stopping pump and connecting with single, it can prevent waterhole from being plugged by reflowing drillings. When blowout occurrs, it can serve as splash valve to prevent liquid flowing into drilling tools.Its structure is divided into flapper type float sub and arrow-type float valve sub.
   Specification
Specification of Float Valve Sub
 
Type
O.D. (mm)
O.D. of Float Valve Core
I.D. of Float Valve Core
Joint Thread
FJT108
108
61
32
3 1/2″REG
FJT121
121
61
38
3 1/2″REG
FJT146
146
88
50
4 1/2″REG
FJT165
165
98
71
NC50
FJT178
178
98
71
NC50
FJT203
203
121
76
6 5/8″REG
FJT209
209
121
76
6 5/8″REG
FJT228
228
121
76
7 5/8″REG
FJT241
241
121
76
7 5/8″REG
 
 
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