* manual gate valves * upper and lower kelly valves * inside bop dart valves in addition, we offer new valve replacement, and purchase is available for any of the above mentioned equipment. oem overhaul and repair is very important to us here at kelly valve. call for more information at 1-337-394-7048 or e-mail us at [email protected].
What is Lower Kelly Valve? - Definition from Petropedia
the lower kelly valve is an essential full-opening valve introduced immediately below the kelly. the valve provides closure to stop mud loss when the kelly is removed from the drill string. it is required to close the valve before the kelly is disconnected so that the hoses and mud in the kelly stay there.
kelly valves hacker kelly valves are full opening valves that provide pressure control of the fluids in the drill string. these api valves can be used as a drill string safety valve, an upper kelly valve to control blow out pressure, or as a lower kelly valve to prevent loss of drilling fluid when the kelly is disconnected.
How kelly-valves (drill stem valves) are maintained and
the kelly-valve is a type of drill stem valve used to prevent flow out of the drill pipe if a kick should occur during a tripping operation.in this post i will give you a "behind the scenes" look at how we maintain and service these small and friendly helpers in the drill string.
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What is Upper Kelly Cock? - Definition from Petropedia
an upper kelly cock, also known as upper kelly valve, is a full-opening valve installed just between the kelly and the kelly swivel with its outside diameter equal to the outside diameter of the drill pipe tool joint.
piece kelly valves designed for the maximum passage of drilling fluids without pressure loss. valves are supplied with either api or vam drilling proprietary double shoulder connections. vam drilling has two types of kelly valves, kc2s with ptfe rings inserted in both upper and lower seats and kc4s with metal-to-metal seals.
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