upper or lower kelly valves

Upper Kelly Valve

The lake Kelly Valve is also available with left-hand threads for use as an upper kelly cock. When used between the kelly and swivel, it provides a positive means for shutting off flow in the drill string at any time. The inline body design will not hang up on the catline or interfere with operations.

Lower Kelly Valve

When used as a lower kelly cock, the lake Kelly Valve provides a closure to stop mud loss when the kelly is disconnected from the drilling string. Just close the valve before disconnecting and mud in the kelly and hoses stays there. With the cost of oil mud, biopolymers and other costly drilling fluids, the valve can pay for itself quickly. The rig floor and substructure stays much cleaner and safer as well. Its streamlined O.D. allows it to pass through the blowout preventer smoothly.

Upper Kelly Valve

The lake Kelly Valve is also available with left-hand threads for use as an upper kelly cock. When used between the kelly and swivel, it provides a positive means for shutting off flow in the drill string at any time. The inline body design will not hang up on the catline or interfere with operations.

Lower Kelly Valve

When used as a lower kelly cock, the lake Kelly Valve provides a closure to stop mud loss when the kelly is disconnected from the drilling string. Just close the valve before disconnecting and mud in the kelly and hoses stays there. With the cost of oil mud, biopolymers and other costly drilling fluids, the valve can pay for itself quickly. The rig floor and substructure stays much cleaner and safer as well. Its streamlined O.D. allows it to pass through the blowout preventer smoothly.