- Oil Drilling
- Tricone Drill Bit
- Drill Collar
- Drill Pipe
- Drill Stabilizer
- Kelly
- Heavy Weight Drill Pipe
- Casing Pipe
- Downhole Motor
- Drilling Jar
- Shock Absorber
- Cross Over Sub
- Kelly Cock Valve
- Drill Rig Parts
- Oil Drilling Tools
- Solid Control Equipment
- Well Cement Tools
- Workover Tools
- Oil Production Tools
- Wellhead Control Equipment
- Shearing Machine
- Hydraulic Press Brake
- Rolling Machine
- Hydraulic Press
- Air & Hydraulic Winch
- Endless Rope Winch
- Marine Winch
- Mine Winch
- Shaft Sinking Winch
- Dispatch Winch
- Harrow Winch
- Download Center
- Contact us
Kelly Cock Valve
Kelly Cock Valve
Our kelly cock valve is the oil drilling equipment used to prevent blowout. The kelly cock contains upper kelly cock and lower kelly cock. The former is connected between lower end of swivel and upper end of kelly, while the later is connected between upper end of drill pipe and lower end of kelly or connected between lower end of kelly saver subs.
Our kelly cock valve is easy to operate. It can be opened or closed by just turning the special operating spanner at 90 degrees according to indicating direction. During drilling operation, serious well kick or blowout accidents can be effectively avoided by using our products.
Specifications of Kelly Cock Valve
Upper Kelly Cock
| Type | OD. (mm) | Thread connection API (in) | I.D. (mm) | Max. sealing pressure (Mpa) |
| CS146 | 146 | 4 1/2REG LH | 57 | 68.6 |
| CS200 | 200 | 6 5/8REG LH | 75 | 68.6 |
Lower Kelly Cock
| Type | OD. (mm) | Thread connection API | I.D. (mm) | Max. sealing pressure (Mpa) |
| XS105 | 105 | NC31 | 40 | 68.6 |
| XS121 | 121 | NC38 | 51 | 68.6 |
| XS127 | 127 | NC38 | 51 | 68.6 |
| XS178 | 178 | NC50 | 70 | 68.6 |
Rugao Yaou Company is a noted kelly clock valve manufacturer and supplier in China. Since our beginning, we have continuously introduced the internationally advanced technology and equipment to produce our oil drilling equipment. Through our years of efforts, we have received the certificate of the American Petroleum Institute (API). Some of our popular products include wellhead control equipment, well cement tools, drill rig parts, and more. These products are highly reliable and low-priced.
Have a need for our kelly clock valve? Do not hesitate, please contact us today!
-
- Tricone Drill Bit
Our tricone drill bit or tri drill bit is a kind of oil drilling equipment. As one of the most commonly used oilfield drill bits, our tricone bit is a primary tool used for drilling, and is widely used for oil and gas exploitation.
-
- Drill Collar
Our spiral drill collar is for reducing contact area with hole to efficiently avoid bit sticking from differential pressure. Our spiral drill collars are made according to API Spec.7 and Standard SY5144. All mechanical properties of our spiral drill collar meet the above standards.