| After-sales Service: | Yes |
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| Warranty: | 1 Year |
| Manufacturing Process: | Casting |
| Surface Treatment: | Galvanized |
| Operation Pressure: | Atmospheric Pressure |
| Material: | Alloy |
| Samples: |
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| Customization: |
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Suppliers with verified business licenses
Audited Supplier The MDX Ball Type Kelly Valve provides a quick, sure shutoff in the drill string that can repay the cost of
the valve quickly in the mud savings and kick protection.This valve can be used as either an upper or
lower kelly cock. It has an exclusive corrugated spring to insure a positive seal. Standard pressure rating
is 10,000 pound test, but higher pressure ratings are available on special order. The ball is stainless steel,
and closes easily. The MDX Kelly valve is full-opening, so it does not interfere with the running of tools
such as core barrels or survey instruments. Its streamlined O.D. is the same as the tool joint O.D.
Upper Kelly Valve:The MDX 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 cat line or interfere with operations.
Lower Kelly Valve:When used as a lower kelly cock, the MDX 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.
Applicable Industries: Energy & Mining
Use::Well Drilling
Place of Origin: Shandong, China
Brand Name: Zhao Xin
Material: Alloy steel
Type: CS197/200/203,XS105/121/127/165/178/184
Suppliers with verified business licenses
Audited Supplier 
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