Kelly Valve also named Kelly Cock/Drill Pipe Safety Valve allowing free passage of drilling fluid without pressure loss. The valve can be used as a dill pipe safety valve or upper Kelly valve to control blowout pressures, or as a lower Kelly Valve to prevent loss of drilling fluid when the Kelly is disconnected. It has a pressure rating of 5,000psi or 10,000psi or 15,000psi
Specifications
Kelly valve is a manually operated ball type drill stem valve; it is divided into upper Kelly valve and lower Kelly valve.
Kelly Valve features:
The sealing principle for Kelly valve is that the ball is positioned and provided with proceeding stress by the lower seat supported by spring load and a close seal between ball and ball seat is provided.
During normal drilling operation, the hole is kept unblocked by turning the stem to be “on” position; In case of kick or blowout, turn the operating stem to be “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 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 |
O.D. (mm) |
Thread connection (LH) |
I.D. (mm) |
Max.sealing pressure(Mpa) |
CS 146 |
146 |
4 1/2 REG |
50 |
68.6 |
CS 200 |
200 |
6 5/8 REG |
76.2 |
68.6 |
Specifications - Lower Kelly Valve
Model |
O.D. (mm) |
Thread connection |
I.D. (mm) |
Max.sealing pressure(Mpa) |
XS105 |
105 |
NC31 |
41.3 |
68.6 |
XS121 |
121 |
NC38 |
50 |
68.6 |
XS127 |
127 |
NC38 |
50 |
68.6 |
XS165 |
165 |
NC46 |
61 |
68.6 |
XS178 |
178 |
NC50 , 5 1/2FH |
71.4 |
68.6 |
Lake Petro company is a professional supplier of various oilfield equipment, including oil drilling and service equipment, oil production equipment, OCTG, wellhead & downhole tools and spare parts. Our products have already been exported to USA, South America, Africa, Middle East, Russia and some other countries (regions). Lake Petro company has become VIP (assigned) supplier and built strategic partnership with some countries' national petroleum companies.
Why you need to choose lake petro ?
As a professional oil and gas service company, Lake petro has many good experience is selling and serve for the oilfield industies,quality is the culture of the company, we provide the API and BV certifed products for customer.
Can you make us the best quality products as well as a good price.
Yes. we can give you really quality products with best price,we have a better understanding of Chinese market, with us your moeny will be safe.
What is special compare with other company ?
First, we provide the quality products, with BV and API certified, at the same time, we will provide the customer with the best service after sale, any time any where.
How to contact us?
skype: lucky_lakepetro
whatsapp: 008613854614085