Unionlever (Group) Petroleum Equipment Co.,Ltd.

Drop-in Check Valves

Drop-in Check Valve

 

Drop-in check valve is an internal preventor. When blowout is going to happen, the Kelly should be removed immediately and the check pressure valve assembly should be put into the water hole and then pumped downward to the required place. Thus, the blowout can be prevented. The valve body connect on the drilling stem, Drop-in check valve is ball and seat of heavy duty, if only drop in the valve core at the mouth of the well, it turn into the valve body. 









 

Type

O.D. of Valve Core Assembly
mm(inch)

Sub Body

Connection
API

OAL
mm(inch)

O.D.
mm(inch)

I.D.
mm(inch)

FT105-1

36(1-27/64)

105(4-1/8)

37.6(1-31/64)

NC31

574(22-39/64)

FT105-2

39(1-17/32)

105(4-1/8)

40.5(1-19/32)

NC31

572(22-1/2)

FT111-1

36(1-27/64)

111(4-3/8)

37.6(1-31/64)

NC31

569(22-13/32)

HY121-1

54(2-1/8)

121(4-3/4)

56(2-13/64)

NC38

805(31-11/16)

FT121-2

51(2)

121(4-3/4)

53(2-3/32)

NC38

794(31-1/4)

FT127-1

52(2-3/64)

127(5)

54_2-1/8)

NC38

794(31-1/4)

FT127-2

51(2)

127(5)

53(2-3/32)

NC38

799(31-29/64)

FT159-1

68(2-43/64)

159(6-1/4)

70(2-3/4)

NC46

867(34-1/8)

FT162-1

69(2-23/32)

162(6-3/8

71(2-51/64)

NC50

872(34-21/64)

FT165-2

67(2-41/64)

165(6-1/2)

69(2-23/32)

NC50

871(34-19/64)

FT168-1

68(2-43/64)

168(6-5/8)

70(2-3/4)

NC50

867(34-1/8)

FT178-1

74(2-29/32)

178(7)

76(3)

HT55

986(38-13/16)

FT190-1

78(3-5/64)

190(7-31/64)

80(3-5/32)

5-1/2FH

906(35-43/64)

HY203-1

84(3-5/16)

203.2(8)

86(3-3/8)

NC56

907(35-45/64)

FT203-2

67(2-41/64)

203.2(8)

69(2-23/32)

6-5/8REG

883(34-49/64)

FH241-1

114(4-31/64)

241.3(9-1/2)

116(4-9/16)

7-5/8REG

975(38-3/8)

←[Previous:] [Next:]→