Drop-in Check Valves

Drop-in Check Valves

Drop-in check valve is an internal preventer. 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.

Specification

Model

Valve Assy.OD mm

Landing Sub

Conn.

Working pressure Mpa

OAL mm

OD mm

ID mm

FT105

39

104.8

40.5

NC31

36,70,105

572

FT121

51

120.7

53

NC38

794

FT127

52

127

54

NC38

794

FT159

68

159

70

NC46

867

FT162

69

162

71

NC50

872

FT165

67

165

69

NC50

872

FT168

68

168

70

NC50

867

FT190

78

190

80

5-1/2 FH

906

FT203

67

203

69

6-5/8 REG

883

FT241

114

241.3

116

7-5/8 REG

975


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