Product Description
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With the exception of the standard body, all components are manufactured from materials meeting the requirements of the National Association of Corrosion Engineers (NACE) Standard MR0175 "Standard Material Requirements, Sulfide Stress Cracking Resistant Metallic Materials for Oilfield Equipment."
Other sizes and connections available upon request.
How to Order
Specify:
- Outer Diameter
- Connections
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The Griffith® Kelly Valve/Drill Pipe Safety Valve is a full opening valve that provides positive pressure control of the fluids in the drill string. These valves can be used as a drill pipe safety valve or upper kelly valve to control blowout pressures, or as a lower kelly valve to prevent loss of drilling fluid when the kelly is disconnected.
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