Product Description
API 5CT J55/P110 Casing Coupling / Tubing Coupling
Product Description
Couplings are short lengths of pipe used to connect 2 joints of tubing or casing.
They come with painted colour codes on their external surface to indicate their grades.
Couplings are manufactured according to API 5CT and 5B specifications.
Coupling manufactured from 1-1/3″ to 30″ according to API standard. It is treated with phosphating or copper plating and have good abrasion& corrosion resistance. Threads have strong viscous resistance. Also customized couplings can be supplied according to special requirement, such as special-clearance coupling, combination coupling, reducing coupling, seal-ring coupling, special-bevel tubing coupling, ect.
Std Ref.:API 5CT 5B ISO
Grade:J55,K55, N80-1,N80-Q,L80,C90,P110
Size: 1.9″~4-1/2″ for tubing, 4-1/2″ to 20″ for casing
Type: NU, EU(tubing coupling), STC,LC,BTC(casing coupling).
API Tubing Coupling:
| Specification | ||
| Size (Pipe OD) (in) | 1.900, 2-3/8, 2-7/8, 3-1/2, 4, 4-1/2 | |
| Upset |
Non Upset External Upset |
|
| Grade | J-55, C-75, L-80, N-80, C-95, P-110 | |
| Option |
Electro-zinc plated Phosphorised |
|
API Casing Coupling:
| Specification | ||
| Size (Pipe OD) (in) | 4-1/2, 5, 5-1/2, 6-5/8, 7, 7-5/8, 8-5/8, 9-5/8, 10-3/4, 11-3/4, 13-3/8, 16, 18-5/8, 20 | |
| Threading |
Short Round-Thread Casing (STC) Long Round-Thread Casing (LC) Buttress Thread Casing (BC) |
|
| Grade | H-40, J-55, K-55, C-75, L-80, N-80, C-95, AS-95, P-110, L80-13CR | |
Casing Coupling(BTC/LC)
| Size | OD | Length | Weight | ||||||||
| STC | LC | STC | LC | ||||||||
| in | mm | in | mm | in | mm | in | mm | lb | kg | lb | kg |
| 4-1/2 | 114.30 | 5.000 | 127.00 | 6-1/4 | 158.75 | 7 | 177.80 | 7.98 | 3.62 | 9.16 | 4.15 |
| 5 | 127.00 | 5.563 | 141.30 | 6-1/2 | 165.10 | 7-3/4 | 196.85 | 10.27 | 4.66 | 12.68 | 5.75 |
| 5-1/2 | 139.00 | 6.050 | 153.67 | 6-3/4 | 171.45 | 8 | 203.20 | 11.54 | 5.23 | 14.15 | 6.42 |
| 6-5/8 | 168.28 | 7.390 | 187.71 | 7-1/4 | 184.15 | 8-3/4 | 222.25 | 20.11 | 9.12 | 25.01 | 11.34 |
| 7 | 144.80 | 7.656 | 194.46 | 7-1/4 | 184.15 | 9 | 228.60 | 18.49 | 8.39 | 23.87 | 10.83 |
| 7-5/8 | 193.70 | 8.500 | 215.90 | 7-1/2 | 190.50 | 9-1/4 | 234.95 | 27.11 | 12.30 | 34.46 | 15.63 |
| 8-5/8 | 219.08 | 9.625 | 244.48 | 7-3/4 | 196.85 | 10 | 254.00 | 35.79 | 16.23 | 47.77 | 21.67 |
| 9-5/8 | 244.48 | 10.625 | 269.88 | 7-3/4 | 196.85 | 10-1/2 | 266.70 | 39.75 | 18.03 | 56.11 | 25.45 |
| 10-3/4 | 273.05 | 11.750 | 298.45 | 8 | 203.20 | – | – | 45.81 | 20.78 | – | – |
| 11-3/4 | 298.45 | 12.750 | 323.85 | 8 | 203.20 | – | – | 49.91 | 22.64 | – | – |
| 13-3/8 | 339.72 | 14.375 | 365.12 | 8 | 203.20 | – | – | 56.57 | 25.66 | – | – |
| 16 | 406.40 | 17.000 | 431.80 | 9 | 228.60 | – | – | 76.96 | 34.91 | – | – |
| 18-5/8 | 473.08 | 20.000 | 508.00 | 9 | 228.60 | – | – | 119.07 | 54.01 | – | – |
| 20 | 508.00 | 21.000 | 533.40 | 9 | 228.60 | – | – | 95.73 | 43.42 | – | – |
Casing Coupling(BC)
| Size | OD | Length | Weight | ||||
| in | mm | in | mm | in | mm | in | mm |
| 4-1/2 | 114.30 | 5.000 | 127.00 | 8-7/8 | 225.42 | 10.12 | 4.55 |
| 5 | 127.00 | 5.563 | 141.30 | 9-1/8 | 231.78 | 13.00 | 5.85 |
| 5-1/2 | 139.70 | 6.050 | 153.67 | 9-5/8 | 234.95 | 14.15 | 6.36 |
| 6-5/8 | 1168.28 | 7.390 | 17.71 | 10 | 244.48 | 24.49 | 11.01 |
| 7 | 177.80 | 7.656 | 194.46 | 10-3/8 | 254.00 | 23.24 | 10.54 |
| 7-5/8 | 193.68 | 8.500 | 215.90 | 10-5/8 | 263.52 | 34.88 | 15.82 |
| 8-5/8 | 219.08 | 9.626 | 244.48 | 10-5/8 | 269.88 | 45.99 | 20.86 |
| 9-5/8 | 244.48 | 10.625 | 269.88 | 10-5/8 | 269.88 | 51.05 | 23.16 |
| 10-3/4 | 273.05 | 11.750 | 298.45 | 10-5/8 | 269.88 | 56.74 | 25.74 |
| 11-3/4 | 298.45 | 12.750 | 323.85 | 10-5/8 | 269.88 | 61.80 | 28.03 |
| 13-3/8 | 339.72 | 14.375 | 365.12 | 10-5/8 | 269.88 | 70.03 | 31.77 |
| 16 | 406.40 | 17.000 | 431.80 | 10-5/8 | 269.88 | 88.81 | 40.28 |
| 18-5/8 | 473.08 | 20.000 | 508.00 | 10-5/8 | 269.88 | 138.18 | 62.68 |
| 20 | 508.00 | 21.000 | 534.40 | 10-5/8 | 269.88 | 110.45 | 50.10 |
Detailed Photos
Related Products:
Pup Joints:
Crossovers:
Certifications
Company Profile
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 with API certification. Following the principle of “quality first, science and technology innovated, people oriented”, every CZPT person is sparing no effort to provide the customers with best products and services. Through efforts of CZPT staff, our products have already been exported to USA, South America, Africa, Middle East, Russia and some other countries (regions). With super quality, reasonable price and professional service, CZPT company has become VIP (assigned) supplier and built strategic partnership with some coutries’ national petroleum companies.
FAQ
How to order?
Please send us your inquiry with detail item description or with Model number.
If there is no packing demand we take it as our regular exported standard packing.
We will offer you an order form for filling. We will recommend you the most suitable model according to information you offered.
You send us your detail requirement, we provide quotation to you.
Can I expect a quality products?
All the production and processing are strictly according to ISO 9001:2008 and API standard. At the same time, mature production technology ensuring the quality satisfy international request. We also welcome the third party inspection, such as BV, SGS and TUV.
The information you may like to know before Payment:
1. Methods of Payment:
T/T (Telegraphic Transfer) or L/C at sight
2. Shipping way
Sample order: we suggest Courier express like DHL/UPS/TNT/FEDEX or by air
Bulk order: we suggest by air or by sea.
3. Quality Control
We have our own experienced QC.
There will be strict inspection and testing for every order before shipping out.
| After-sales Service: | Online Support |
|---|---|
| Warranty: | 1 Year |
| Manufacturing Process: | Seamless |
| Surface Treatment: | Painting |
| Operation Pressure: | / |
| Material: | L80 / N80 / J55 / K55 / P110 |
| Customization: |
Available
| Customized Request |
|---|
What Is a Coupling?
A coupling is a mechanical device that links two shafts together and transmits power. Its purpose is to join rotating equipment while permitting a small amount of misalignment or end movement. Couplings come in a variety of different types and are used in a variety of applications. They can be used in hydraulics, pneumatics, and many other industries.
Types
Coupling is a term used to describe a relationship between different modules. When a module depends on another, it can have different types of coupling. Common coupling occurs when modules share certain overall constraints. When this type of coupling occurs, any changes to the common constraint will also affect the other modules. Common coupling has its advantages and disadvantages. It is difficult to maintain and provides less control over the modules than other types of coupling.
There are many types of coupling, including meshing tooth couplings, pin and bush couplings, and spline couplings. It is important to choose the right coupling type for your specific application to get maximum uptime and long-term reliability. Listed below are the differences between these coupling types.
Rigid couplings have no flexibility, and require good alignment of the shafts and support bearings. They are often used in applications where high torque is required, such as in push-pull machines. These couplings are also useful in applications where the shafts are firmly attached to one another.
Another type of coupling is the split muff coupling. This type is made of cast iron and has two threaded holes. The coupling halves are attached with bolts or studs.
Applications
The coupling function is an incredibly versatile mathematical tool that can be used in many different scientific domains. These applications range from physics and mathematics to biology, chemistry, cardio-respiratory physiology, climate science, and electrical engineering. The coupling function can also help to predict the transition from one state to another, as well as describing the functional contributions of subsystems in the system. In some cases, it can even be used to reveal the mechanisms that underlie the functionality of interactions.
The coupling selection process begins with considering the intended use of the coupling. The application parameters must be determined, as well as the operating conditions. For example, if the coupling is required to be used for power transmission, the design engineer should consider how easily the coupling can be installed and serviced. This step is vital because improper installation can result in a more severe misalignment than is specified. Additionally, the coupling must be inspected regularly to ensure that the design parameters remain consistent and that no detrimental factors develop.
Choosing the right coupling for your application is an important process, but it need not be difficult. To find the right coupling, you must consider the type of machine and environment, as well as the torque, rpm, and inertia of the system. By answering these questions, you will be able to select the best coupling for your specific application.
Problems
A coupling is a device that connects two rotating shafts to transfer torque and rotary motion. To achieve optimal performance, a coupling must be designed for the application requirements it serves. These requirements include service, environmental, and use parameters. Otherwise, it can prematurely fail, causing inconvenience and financial loss.
In order to prevent premature failure, couplings should be properly installed and maintained. A good practice is to refer to the specifications provided by the manufacturer. Moreover, it is important to perform periodic tests to evaluate the effectiveness of the coupling. The testing of couplings should be performed by qualified personnel.
editor by CX 2023-04-22