Hand Control Upper and Lower Kelly Valve Drill Stem Pipe Safety Valve 35 - 105MPa

Product Description

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.


The sealing principle for Kelly valve is to ensure a close seat between the ball and the ball seat. The lower seat is supported by a spring. The force provided by the spring keep the ball securely in place with lower seat. During normal drilling operation, the hole is kept unblocked by turning the stem to "on" position; In case of kick or blowout, turn the operating stem to "off" position to close off the internal bore of drill string, the kick or blowout accident is avoided due to a high pressure sealing situation between ball and the ball seat.


When ordering please specify:

• • Upper or Lower type;
  • Tool OD;
  • Working pressure: 5,000 / 10,000 / 15,000 psi;
• • Tool connection.

Specifications - Upper Kelly Valve

Model	Product  Code	O.D. (mm)	Thread connection (LH)	I.D. (mm)	Max. Sealing Pressure (MPa)
CS 146K	F021461	146	4 1/2 REG	57.2	68.6
CS 200K	F022001	200	6 5/8 REG	76.2	68.6

Specifications - Lower Kelly Valve

Model	Product  Code	O.D. (mm)	Thread connection (LH)	I.D. (mm)	Max. Sealing Pressure (MPa)
XS105K	F021051	105	NC31	40	68.6
XS121K	F021211	121	NC38	44.5	68.6
XS127K	F021271	127	NC38	44.5	68.6
XS140K	F021402	139.7	NC40	57.2	68.6
XS159K	F021591	159	NC46	61	68.6
XS165K	F021653	165	NC46	61	68.6
XS178K	F021781 , F021782	178	NC50 , 5 1/2 FH	71.4	68.6

 

 

Certifications

Packaging & Shipping

 

Company Profile

Our Advantages

Tianhe principle is to offer high quality products at competitive price to benefit our customers and the industry in the long run.
We are the Leading manufacturer in China since 1973 for drilling /fishing /milling equipment for oil and gas.
We have established a complete quality control system, all products& equipments manufactured as per international standard and API standard.
Competitive Advantages
1. We offer high quality products at competitive price.
2. Shortest delivery time & Flexible payment terms.
3. Full range of drilling /fishing /milling equipment for oil and gas.
4. Timely after-sale service.
5. Imported International brands Machines such as Japan Mazak machining center, Austria WFL machining center etc
6. Complete quality control system, offices and testing equipment.
 

FAQ

Dear  customer,

Thanks for your time of visiting us on made in china, if you have any further questions and needs, please kindly inform us by inquiry online or contact us by below information.

We look forward to your kind reply, thanks very much.

Ms. Dongyan
Sales Manager

Tianhe Oil Group Huifeng Petroleum Equipment Co., Ltd.