kelly valve

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kelly valve
Posting date : Jun 21, 2008
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HS-CODE
82-
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Detailed Description
kelly valve also named kelly cock/drill pipe safety valve allowing free passage of drilling fluid without pressure loss. the valve 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 disconnecter. it has a pressure rating of 5000psi,10000psi or 15000psi xiaoyouloveyou@hotmail.com

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