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PRODUCT CENTERA cold rolling seamless steel pipes in Wuxi for cold rolled seamless steel pipes . We provide the products consultation , purchase plan suggestion , logistic service ( including the shipment service , custom works
Casing And Tubing Coupling
Keyword:
Ductile Iron Pipe
PRODUCT DETAILS
Description
About Tubing coupling
Normally tubing coupling OD maximum is 4 1/2”, as the tubing pipe is applied for the drilling activities (Inside the tubing is the sucker rod to drill/pump the oil), couplings type is more various and rigorous than casing, mostly used is thicken type upset coupling (Internal upset and external upset), for short is EUE coupling, it is the most favorable in tubing connections. Tubing with EU end (EUE) coupling connection also called UPTBG. Because of the end of the tubing is thickened (upset), the connecting stress is better than buttress coupling.
Buttress coupling another type used for tubing connections, it has the same thickness of the pipe body, called NU end (NUE)tubing or TBG.
Features
The oil tubing coupling can solve the problem of fatigue fracture in the existing coupling due to stress concentration. Oil tubing end is connected to the inside wall of the coupling in a tapered thread. The coupling body end and oil tubing are connected with same thread pitch flat thread. The coupling is not easy to produce fatigue fracture, and has good connection effect. It can prevent the accident of oil well pipe string break effectively.
About Casing coupling
Casing coupling is for the dimensions more than 4 1/2 inch. Differently than tubing coupling is, casing coupling normally does not need to be thickened (Non-upset), which means no upset casing coupling, so it has following types:
• BTC: Buttress coupling
• LTC: Long buttress coupling
• STC: Short buttress coupling
All three types has same thickness of the casing pipe body, just have different lengths.
The oil casing coupling is a necessary piece used to connect the two casing. The coupling manufacturing method is the same as seamless pipe. The steel pipe ends with internal thread to connect with the upper and lower casing. In order to ensure the joint tightness, the precision of screw thread is strictly required.
Seamless and ERW Casing
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Specification |
API 5CT |
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Grades |
K55, N80, L80, C95, P110, Chrome, J55(Modified), J55 (API), PS80 |
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Special Grades |
For sour services and for deep well with high collapse properties |
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Dimensions |
OD 4" - 26" WT - 0.2 -0.5" |
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Length range |
1, 2 or 3 |
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Thread connections |
API (STC and LTC), BTC, extreme line, etc. |
Seamless and ERW Tubing
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Specification |
API 5CT |
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Grades |
J55 (API) J55(Modified), N80, L80, L80 13Cr, P110, Q125, H40 (API) |
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Thread connections |
API 5B - Last Edition or Premium, EUE, NUE, special seal, metal-to-metal seal and VAGT |
Specification
Casing Couplings Short Thread Specifications:
|
Casing Couplings |
Casing Size OD (inches) |
Coupling Size OD (inches) |
Length (inches) |
Weight per Coupling (lbs) |
Palletized Carton Quantity |
 |
4-1/2 |
5.000 |
6.250 |
8.05 |
343 |
Warehouse Storage
Our company is committed to providing a series of high-quality, innovative and cost-effective steel products, which are widely used in various industries. With more than 3,000 independent patents, the annual output of steel products exceeds 5 million tons, and the inventory exceeds 200,000 tons.
Packing and shipping
Due to our continuous and widespread success in overseas market and outstanding social contributions, our company was awarded by the local government for many times. Our products have been exported to Southeast Asia, Middle east, South America, Europe, Oceania and other countries and regions, which enjoys good reputation.
Customer conversation
We adhere to the management principle of "quality first, service first, continuous improvement and innovation to meet customer needs", and strive to build a leading world-class manufacturer in China.
Application field
Construction and decoration field, cooking equipment, kitchenwares, household appliances, food processing equipment, hospital surgical equipment, shipbuilding, oil industry, refrigeration equipment, papermaking industry, pressure vessel, chemical equipment, bridge construction, textile printing and dyeing equipment.
Partners
FAQ
Q: Do you accept the third party inspection?
A: Yes absolutely we accept.
Q: Do you provide the samples? Free or Extra?
A: The cost of the samples is according to the value.The cost of the freight is necessary.
Q: Do you have large amount of steel products in stock?
A: Yes , we have a large-scale indoor warehouse with perennial spot stocks totally above 200000 tons.
Q: What is your delivery time and the supply ability?
A:The delivery time normally within 15~28working days,we can supply about 10,000tons every month.
Q: How to order?
A: Buyer sends the enquery --> Buyer gets the quotation --> Order confirmation --> Buyer send the deposit --> Seller prepares goods --> Seller makes the strict inspection --> Buyer Arranges Balance Payment --> packing and delivery
Q: How can you ensure the quality of your product?
A: All products have to go through three checks in the whole manufacturing process,it includes production and Random Testing in warehouse and Before Shipping.
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CONTACT US
Tel：+8615852509385
Email : [email protected]
WhatsApp：8615852509385
WeChat: +8615852509385
Add : Building 8, No. 1098 Chuansha Road, Pudong New Area, Shanghai, China
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