Petroleum Well Control Equipment Co., Ltd.(PWCE)

China Kelly Cock valve Manufacturing

Short Description:

Kelly Cock Valve is designed and manufactured as a one-piece or a two-piece

Kelly Cock Valve for free passage and maximum circulation of the drilling fluid minimizing pressure loss.

We manufacture Kelly Cock bodies from chromoly steel and use the latest in stainless, monel and bronze for the internal parts, meeting NACE specifications for use in sour service.

Kelly Cock Valve is available in one or two-piece body construction and is supplied with either API or proprietary connections.

Kelly Cock valve is available in 5000 or 10,000 PSI.


Product Detail

Product Tags

Description:

Kelly-Cock-Valve 9

Kelly Cock Valves are devices that allow for shutting the internal bore of the drill string keeping the mud column in the top drive or the Kelly when disconnecting from the drill string. It controls the flow of the mud during normal drilling operations and is operated from the rig floor. Standard configurations include two Kelly Cock Valves; an upper Kelly Valve and a lower Kelly Valve.

Expanding on the functionality of Kelly Cock Valves, they play a pivotal role in securing the drill string and isolating wellbore pressure in the event of a kick or blowout. In addition, these valves add an extra layer of safety when tripping in and out of the hole, protecting both the rig and the crew. Our Kelly Cock Valves feature robust construction, utilizing high-grade, heat-treated alloy steel for extended longevity and optimal performance even in extreme drilling environments. They are precision-engineered to ensure reliable sealing under high-pressure conditions and are easy to operate, providing critical control in demanding situations. All these attributes make the Kelly Cock Valve an essential tool in the safe and effective management of drilling operations.

Kelly Cock valve 4

Specification

Model O.D. mm

(in.)

Thread connection I.D. mm

(in.)

Max.sealing pressure

(Mpa)
XS86 86 (3 3/8) NC26 30 (1 1/16) 35 70 105
XS111 111 (4 3/8) NC31 40 (1 37/64) 35 70 105
XS121 121 (4 3/4) NC38 44.5 (1 3/4) 35 70 105
XS146 146 (5 3/4) 4 1/2 REG LH 44.5 (1 3/4) 35 70 105
XS168 168 (6 5/8) NC50 71.4 (2 13/16) 35 70 105
XS178 178 (7) 5 1/2 FH 71.4 (2 13/16) 35 70 105
XS197 197 (7 3/4) 6 5/8 REG LH 76.2 (3) 35 70 105

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