API 6A Upper Kelly and Lower Kelly Valve
Product Quick Detail
- FOB Price
- USD $300.00 / Piece
- Place Of Origin
- China (Mainland)
- Minimum Order
- 1
- Packaging
- Wooden box
- Delivery
- 30 Days
Specifications
Kelly valve is a manually operated ball type drill stem valve; it is divided into upper Kelly valve and lower Kelly valve. 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 connected between lower end of Kelly saver subs. The Kelly valve can be opened on or closed off by only turning the special operating wrench at 90° according to indicating direction. During drilling operation, the Kelly valve shall be connected at upper end and lower end of Kelly.
The sealing principle for Kelly valve is that the ball is positioned and provided with proceeding stress by the lower seat supported by spring load and a close seal between ball and ball seat is provided. During normal drilling operation, the hole is kept unblocked by turning the stem to be “on” position; In case of kick or blowout, turn the operating stem to be “off” position to close off the internal bore of drill string, the kick or blowout accident is avoided due to a high pressure sealing situation between ball and ball seat.
| Model | O.D. mm (in.) | Thread connection | I.D. mm (in.) |
Max.sealing
pressure(Mpa) |
| XS86 | 86 (3 3/8) | NC26 | 30 (1 1/16) | 35 70 105 |
| XS111 | 111 (4 3/8) | NC31 | 40 (1 37/64) | 35 70 105 |
| XS121 | 121 (4 3/4) | NC38 | 44.5 (1 3/4) | 35 70 105 |
| XS146 | 146 (5 3/4) | 4 1/2 REG LH | 44.5 (1 3/4) | 35 70 105 |
| XS168 | 168 (6 5/8) | NC50 | 71.4 (2 13/16) | 35 70 105 |
| XS178 | 178 (7) | 5 1/2 FH | 71.4 (2 13/16) | 35 70 105 |
| XS197 | 197 (7 3/4) | 6 5/8 REG LH | 76.2 (3) | 35 70 105 |
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- Market:
- Founded Year:
- Address:
- Contact:Michelle Zhang
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bestway73@LY,2020-02-22 21:44:41
Please quote for the below items with your best price and delivery schedules and shipping details to Tripoli-Libya.
float equipment ( Premium Connection)
Basic Materials:
1)- 13-3/8" FS,L-80,NRT, 68#, Vam Top........................QTY.5ea
2)- 13-3/8" FC,L-80,NRT, 68#, Vam Top........................QTY.5ea
3)- 13-3/8"NRT Top Plug................................................QTY.5ea
4)- 13-3/8"NRT Bottom Plug...........................................QTY.5ea
5)- 9-5/8" FS,L-80,NRT, 47#, Vam Top............................QTY.5ea
6)- 9-5/8" FC,L-80,NRT, 47#, Vam Top ..................................QTY.5ea
7)- 9-5/8"NRT Top Plug ..........................................................QTY.5ea
8)- 9-5/8"NRT Bottom Plug......................................................QTY.5ea
9)- 9-5/8" DV Tool, Vam Top......................................................QTY. 2ea
Contingency Materials:
10)- 7" FS,L-80,NRT,29#, T blue..................................................QTY. 2ea
11)- 7" FC,L-80,NRT,29#, T blue...................................................QTY. 2ea
12)- 7"NRT Top Plug......................................................................QTY. 2ea
13)- 7"NRT Bottom Plug..................................................................QTY. 2ea
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