float valve sub

7 5/8REG

76(3)

121(4 3/4)

241(9 1/2)

FJT241

7 5/8REG

76(3)

121(4 3/4)

228(9)

FJT228

6 5/8REG

76(3)

121(4 3/4)

209(8 1/4)

FJT209

6 5/8REG

76(3)

121(4 3/4)

203 (8)

FJT203

NC50

71(2 13/16)

98(3 7/8)

178 (7)

FJT178

NC50

71(2 13/16)

98(3 7/8)

165(6 1/2)

FJT165

4 1/2REG

71(2 13/16)

88(3 1/2)

165(6 1/2)

FJT165

4 1/2REG

50(2)

88(3 1/2)

146(5 3/4)

FJT146

3 1/2REG

38(1 1/2)

61(2 3/8)

121(4 3/4)

FJT121

3 1/2REG

32(1 1/4)

61(2 3/8)

108(4 1/4)

FJT108

Connection

 

mm(in)

I.D. of float valve core

 

mm(in)

O.D. of float valve core

O.D. mm(in)

Type specification Float valve sub is usually connected at the top of the bit, in order to control the flow liquid at the bottom of the well.It can serve as blowout preventer and drill pipe plug .

Float valve sub is usually connected at the top of the bit, in order to control the flow liquid at the bottom of the well.