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上部方钻杆旋塞阀
        类型        

(mm)

接头螺纹

(LH)

内径

(mm)

最大密封压力

(Mpa)

CS 146K
146
4 1/2 REG
57.2
35/70/105
CS 197K
197 6 5/8 REG
76.2
35/70/105
CS 200K
200 6 5/8 REG
76.2
35/70/105
下部方钻杆旋塞阀
XS89K
89
NC26
30 35/70/105
XS105K
105
NC31
40 35/70/105
XS121K 121
NC38
44.5
35/70/105
 TIANHE Kelly cock Kelly valve is an effective manually operated ball type valve for the drill stem, divided into upper and lower sections. The upper Kelly valve is connected between lower end of swivel and upper end of Kelly. The lower Kelly valve is connected between upper end of drill pipe and lower end of Kelly or lower end of Kelly saver subs.The Kelly valve can be opened or closed off by simply turning a special operating wrench 90° according to indicated direction.Both upper and lower kelly cocks should be connected to prevent accident during drilling operation.
Kelly cock
?Diameter of Kelly cock
?Thread connection of kelly cock
?working pressure of kelly cock
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Tianhe Oil Group Huifeng Petroleum Equipment CO. ltd.