Kelly valve is a manually operated ball type valve for the drill stem, divided into upper and lower sections. The upper Kelly valve is connected between lower end of swivel and upper end of Kelly. The lower Kelly valve is connected between upper end of drill pipe and lower end of Kelly or lower end of Kelly saver subs.The Kelly valve can be opened or closed off by simply turning a special operating wrench 90° according to indicated direction.
Upper Kelly Cock
| Model | OD.(mm) | Connection API | I.D. mm | Max. rated working pressure (psi) |
| CS146K | 146 | 41/2REG LH | 57.2 | 68.6 |
| CS200K | 200 | 65/8 REG LH | 76.2 | 68.6 |
| Model | O.D(mm) | Thread(API) | I.D.(mm) | Max.Sealing Pressure(Mpa) |
| XS105k | 105 | NC31 | 40 | 68.6 |
| XS121k | 121 | NC38 | 44.5 | 68.6 |
| XS127k | 127 | NC38 | 44.5 | 68.6 |
| XS140K | 139.7 | NC40 | 57.2 | 68.6 |
| XS159K | 159 | NC46 | 61 | 68.6 |
| XS165K | 165 | NC46 | 61 | 68.6 |
| XS178K | 178 | NC50,5 1/2FH | 71.4 | 68.6 |
All the packing will be suitable for export packing. All precautions will be taken to protect the cases from damage during overseas transportation,so as to receive them under proper conditions at the final destination.Wooden case packaging materials will be treated.
Tianhe Oil Group Huifeng Petroleum Equipment Co., Ltd is a modernized medium-scale enterprise specialized in production of oil and gas tools.
As an API-Certified established manufacturer and supplier of a comprehensive range of downhole equipment with related accessories, we are committed to providing the highest Quality products for the Petroleum and natural gas industry since 1973.
Tianhe Oil Group strongly believes and promotes Total Quality Management, implement the ISO quality management system and HSE management system and API Standard, which has been deeply implanted into every person's thought and carried out into every aspect of work.
So far, Tianhe Oil Group has established strong business relationships with over 200 international oil & gas companies in supporting the top 50 oil producing countries.
We take pride in delivering superior performances and reliability. Our objective is to exceed your expectations, improve your economics and be an integral part of your strategies.
