Product description
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:
Round thread • LTC/LC: Long round thread casing coupling
• STC/SC: Short round thread casing coupling
Buttress thread • BTC/BC: Buttress thread casing 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.
Other products:
API 5CT Tubing and Casing Coupling 2-7/8" EU N80 From China |
Pup Joint: API 5CT 3-1/2"EU K55/J55/N80/P110 From China
|
API 5CT Version 10: 3-1/2 "EU Pin X 2-7/8" EU Pin K55/J55/N80/P110 |
Packing
Delivery
FAQ:
Q: Are you a factory or a trading company?
A: We are Henan Dongfanglong Machinery Manufacturing Company.
Q: How do I place an order?
A: Inquiry with us → Customize based on drawings and samples → Inform us of the usage scenario → Receive our product design recommendations → Negotiate on details → Confirm the sample → Sign the contract/pay the deposit → Mass production → Goods ready → Balance/delivery → Further cooperation.
Q: What about sample orders?
A: We are happy to provide you with samples. If needed, please contact us for more details. If we charge you for the sample, rest assured that the fee will be fully refunded when you place a formal order.
Q: Which shipping methods are available?
A: We offer multiple shipping methods such as sea freight, express delivery, and China Post Express for your choice. If you have other shipping needs or require a specific shipping route, please feel free to contact us.
Q: How long does it take for delivery/production and shipment?
A: The delivery time mainly depends on the quantity and complexity of your order. Typically, we can complete production and shipment within 5-10 working days. If you have special requirements, please inform us in advance so that we can arrange accordingly.
Q: My package is missing some products. What should I do?
A: We apologize for the missing products in your package. Please contact our support team immediately, and we will verify the package contents and resend the missing products to you as soon as possible. We apologize for any inconvenience caused.
Q: How do I confirm payment?
A: We accept payment methods such as telegraphic transfer and PayPal. Other payment methods are also acceptable. Please contact us before making payment through other methods. Additionally, a deposit of 30-50% is feasible, and the balance should be paid before shipment. Rest assured that we will ensure the security and smooth progress of the transaction.
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