API Drill Pipe Safety Valve OD146mm L500mm NC38 Kelly Valves For Oil Well
Brand Name:MIROC
Certification:API
Model Number:Upper / Lower kelly valves
Minimum Order Quantity:1 Pieces
Delivery Time:10-20 days
Payment Terms:L/C, T/T, Western Union
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Location:
Beijing Beijing China
Address:
Room9-616, No. 10 Zhenxing Road (MDW Plaza), Changping District, 102200 Beijing, China
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Product Details
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Product Details
NC38 Inside blowout control tools 3~3/8" Upper / Lower kelly valves
Product information
Kelly cock valve is a manual control valve in the drill string
circulation system and is one of the effective tools to prevent
blowout; it is upper Kelly valve and lower Kelly valve which is
assembled the upper end and lower end of drill pipe.
The kelly valve can be opened on or closed off by the specoal
operating spanner at 90 degrees according to the indicatong
dorection.
Specifications -
Name | Model | O.D. | I.D. | Connection | WP |
| mm(inch) | mm(inch) | API | 35MPa 70MPa 105MPa | ||
| Upper Kelly Valve | XS197 | 197(7-3/4) | 76.2(3) | 6-5/8REG LH | |
| XS146 | 146(5-3/4) | 44.4(1-3/4) | 4-1/2REG LH | ||
| Lower Kelly Valve | XS111 | 111(4-3/8) | 38(1-37/64) | NC31 | |
| XS121 | 121(4-3/4) | 44.4(1-3/4) | NC38 | ||
| XS146 | 146(5-3/4) | ||||
| XS165 | 165(6-1/2) | 71.4(2-13/16) | NC50 | ||
| XS178 | 178(7) | NC50 | |||
| XS184 | 184(7-1/4) | 5-1/2FH |
The kelly valve has simple structure, convenient operation and
reliable use. It has become an important part of the blowout
prevention system in the drilling string and is widely used in the
field.
There are three main failure modes of the kelly plug valve:
①The strength failure is mainly caused by the early fatigue
fracture of the valve body. The reason for the strength failure is
the unreasonable structure size, poor material, and improper heat
treatment;
②The ball of the valve fails to rotate. This is because the
frictional torque between the ball and the valve seat is too large,
severely rusted, the valve seat is plastically deformed and the
sealing surface is stuck with solid particles. The root cause of
the rotation failure is the gap between the ball and the valve
seat. Caused by excessive friction;
③Seal failure, the sealing structure of the plug valve consists of
three parts, of which the main seal between the ball and the upper
valve seat is particularly important. If it fails, the function of
the plug valve as a stop valve will be completely lost. For this
reason, on the basis of failure analysis, measures to reduce the
above three types of failures are proposed.
production name:kelly valves
Style and size: OD5 3/4", 4 1/2IF , 5000PSI
Connection: NC38
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Company introduce
Our Services
KSQ Technologies (Beijing) Co. Ltd. is a company that shall cater to the needs of the construction and mining industries, with consideration on providing solutions to the following unique problems:
- Hazardous environment
- Acts, regulations, and other government guidelines that has to be followed
- Significant differences in the way people work, mostly due to physical constraints
- Avoiding downtime on major equipment which can cost tens of
thousands of dollars per hour. The best solution with the most
reasonable cost is a significant driver.
Company Information
KSQ Technologies (Beijing) Co. Ltd. has significant experience and know-how in the supply of materials, components, finished goods, specially designed/engineered equipment, and services from China. The company caters to medium to large scale clients who are doing projects and capital expansion, as well as to firms who require support with consumable products, maintenance, and repair operations.
API Drill Pipe Safety Valve OD146mm L500mm NC38 Kelly Valves For Oil Well
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