API Kelly Valve Drill Pipe Safety Valve
API Kelly Valve Drill Pipe Safety Valve
Kelly valve also named Kelly cock or drill pipe safety valve. It is a hand control valve in drill string circulating system and it is one of the effective tools to prevent blowout. Kelly valve is divided into Upper Kelly Valve and Lower Kelly Valve. Upper Kelly Valve is connected between swivel sub and Kelly. Lower Kelly valve is connected between lower end of Kelly and top of drill pipe or lower end of Kelly save sub. Rotating the wrench of full opening safety valve 90° to realize on and off. In the drilling operation, in order to avoid malignant accidents, Kelly valves should be connected to both end of Kelly to prevent loss of drilling flid and blowout.
Kelly cock valve, which is a manually operated ball valve run in I.D of drill string, is one of effective tool for preventation from blowout.
The kelly cock is divided into upper kelly cock valve and lower kelly cock .
The upper kelly cock is connected between lower end of swivel and upper end of kelly. The lower kelly cock is connected between upper end of drill pipe and lower end of kelly or connected between lower end of kelly saver subs.
The kelly cock features a simple operation,the kelly cock can be opened on or closed off by only turning the special operationg spanner at 90 degrees according to indicating direction. During drilling operation the kelly cock shall be connected at upper end and lower end of kelly.
| Model | OD mm (inch) | Conn. | ID mm (inch) | Working Pressure (MPa) |
| XS86 | 86(3 3/8) | NC26 | 30(1 3/16) | 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) | 4-1/2REG 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) | 5-1/2FH | 71.4(2 13/16) | 71.4(2 13/16) |
| XS197 | 197(7 3/4) | 6-5/8REG LH | 76.2(3) | 35, 70, 105 |
Pre-Sales Service After-Sales Service
* Transaction Level Five Stars * Supplier Service Service Five Stars
* Response Rate 86.5% * On-time Shipment Five Stars
* Response Time<12h * Product Quality Five Stars
Packaging
Packaging Details:Bundling and container packaging, we will put moisture-proof and rust-proof materials in the container to resist the harsh environment during transportation.
Q1,Could you do OEM Service?
A: Some items accept this service, pls contact us for details.
Q2: What's your Delivery Time?
A: In generally , the delivery time is about 3-7 days for sample order. We will make the delivery asap with the guaranteed quality.
Q3:What's the convenient way to pay?
A: Trade Assurance, L/C,T/T,Western Union and Escrow are accepted , and if you have a better idea, please feel free to share with us.
Q4:Which mode of transport would be better?
A: In general , we advice to make delivery by sea for large order, and for small order,Courier,By Air both ok,Also we respect your views of other transportation as well.
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