API Drill Pipe Safety Valve

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  • Major repair kits available for every valve.
  • Comes with certified test report.
  • Identifiable open and close markings.
  • Can be H2S corrosion resistant as per NACE MR0175.

 

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Description

API Drill Pipe Safety Valve

 

Kelly Valve is an effective manually operated ball type valve for the drill stem. It located within the drill string that allow for free-passage of drilling fluid without pressure loss and are specifically designed for effective control of blow outs and/or mud loss control. The kelly valve is divided into upper kelly cock valve and lower kelly cock valve. The upper kelly cock is connected between lower end of swivel and upper end of kelly; the lower kelly valve is connected between lower end of kelly saver sub. 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, both upper and lower Kelly cocks should be connected to prevent accident during drilling operation.

Techanical Specification

Model O.D.(mm) Thread connection I.D. (mm) Working pressure(Mpa)
XS-86 86 NC26 30 30,70,105
XS-105 105 NC31 40 30,70,105
XS-111 111 NC31 40 30,70,105
XS-121 121 NC38 44.5 30,70,105
XS-127 127 NC38 44.5 30,70,105
XS-140 140 NC40 57.2 30,70,105
XS-XS146 146 4-1/2 REG 57.2/44.5 30,70,105
XS-159 159 NC46 61 30,70,105
XS-165 165 NC46 61 30,70,105
XS-168 168 NC50 71.4 30,70,105
XS-178 178 NC50,5-1/2 FH 71.4 30,70,105
XS-XS197 197 6-5/8 REG 76.2 30,70,105
XS-XS200 200 6-5/8 REG 76.2 30,70,105

 

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