Import 80s Nu Tubing Coupling — Buy in wholesale FOB from Supplier in China
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80s NU TUBING COUPLING
The 80s NU tubing coupling is a premium connecting component designed for NU (non-upset) tubing in oil and gas extraction operations. Manufactured by Tianjin Dalipu Oil Country Tubular Goods Co., Ltd, it provides a pressure-tight joint between tubing strings without requiring upset ends, reducing weight and cost. The coupling is machined from high-strength alloy steel, heat-treated to meet API Spec 5CT requirements for L80 Type 1 material grade.
Standard NU couplings for 80s series tubing feature a 3.5 in outer diameter and are threaded with 8 round API threads per inch, providing a gas-tight seal under high-pressure conditions. The internal diameter is typically 2.441 in to match the tubing’s drift diameter, and the coupling length is designed to allow full engagement without over-torquing. Surface finishes include a phosphate coating for corrosion resistance during storage and handling.
This coupling is used in onshore and offshore wells for tubing strings that transport oil, gas, or injection fluids. Buyers include oilfield service companies, exploration firms and workover rig operators. The supplier ships from Tianjin port, with couplings bundled in wooden crates or steel skids for export. Standard packaging includes thread protectors and anti-corrosion oil for long-term storage.
| Material grade | API 5CT L80 Type 1 (high-strength alloy steel) |
| Outer diameter | 3.5 in (typical for 80s NU series) |
| Inner diameter | 2.441 in (standard drift diameter match) |
| Thread type | 8 round API threads per inch |
| Pressure rating | Designed for high-pressure oilfield service (exact rating to be confirmed with supplier) |
| Surface finish | Phosphate coating for corrosion resistance |
| Length | Standard API coupling length for NU tubing (typical) |
| Tensile strength | 758 MPa minimum (standard for L80 grade) |
| Yield strength | 552 MPa minimum (standard for L80 grade) |
| Packaging | Wooden crates or steel skids with thread protectors |
Tianjin Dalipu Oil Country Tubular Goods Co., Ltd is based in Jinghai District, Tianjin, China, and specialises in the manufacture of oilfield tubular products. The company holds a harbor trust tier, which confirms basic business registration and contact verification but does not include on-site audits or production capacity data. No response rate or average response time is currently recorded for this supplier.
The firm’s profile highlights its focus on API-compliant products for the oil and gas sector, including tubing, casing and couplings. While the listing mentions ISO and SGS certifications, these are not supplier-confirmed in the data, so buyers should request copies of current certificates. No export markets, client references or annual production volumes are provided, so due diligence is essential.
| Business Type | Supplier |
| Year Established | Recently Joined |
| Employees | Contact Supplier |
| Annual Revenue | Contact Supplier |
| Main Products | View Products Tab |
| Major Markets | Global |
| Response Time | <4h |
| Response Rate | New Supplier |
Sourcing 80s NU TUBING COUPLING from Tianjin Dalipu Oil Country Tubular Goods Co., Ltd - China Import Guide
Before placing an order, confirm that the 80s NU coupling matches your tubing’s outer diameter, thread type and material grade. Request the supplier’s API Spec 5CT compliance documentation and a mill test certificate for the L80 steel to verify mechanical properties. Ask for a dimensional inspection report to ensure the coupling’s inner diameter and thread pitch meet API standards.
Logistics should account for the weight and volume of the couplings, which are typically shipped in bulk on pallets or in wooden crates. Clarify Incoterms with the supplier, as FOB Tianjin is common, and confirm whether thread protectors and anti-corrosion oil are included. Payment terms often involve a 30% advance by T/T, with the balance due before shipment, but this must be negotiated directly with Tianjin Dalipu.
Quality checks should include a visual inspection of the phosphate coating and thread integrity upon receipt. Perform a thread gauge test to confirm the 8 round API threads per inch are within tolerance. Documentation to secure includes a certificate of origin, material traceability records and a packing list detailing the quantity and batch numbers for traceability.
- ✓Who's importing it
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30 suppliersBuy 80s Nu Tubing Coupling in Bulk — Verified Supplier in China
When sourcing 80s Nu Tubing Coupling for your business, securing the right balance of quality and cost is essential. Tianjin Dalipu Oil Country Tubular Goods Co., Ltd, a verified supplier based in China, offers this product for international export. By purchasing directly from the manufacturer or authorized exporter, buyers can negotiate favorable FOB prices starting at $20/Bags and manage bulk orders with a minimum order quantity (MOQ) of 1 Bags. This product is a staple in the Industrial Couplings sector with strong demand from importing countries worldwide.
80s Nu Tubing Coupling Specifications, Trade Terms & Pricing
Importing 80s Nu Tubing Coupling requires careful attention to shipping logistics, customs compliance, and secure payment terms. Tianjin Dalipu Oil Country Tubular Goods Co., Ltd offers flexible shipping options such as Full Container Load (FCL) or Less than Container Load (LCL) via sea freight. Common payment methods for international B2B transactions include Letter of Credit (L/C), Telegraphic Transfer (T/T), and Documents against Payment (D/P). All transactions and RFQs are facilitated through EximNext, a leading import export marketplace designed to make cross-border trade secure and efficient.
About Tianjin Dalipu Oil Country Tubular Goods Co., Ltd — Supplier in China
Finding trustworthy partners is the foundation of successful importing. The supplier of this 80s Nu Tubing Coupling has been verified on our platform. Whether you are a distributor, wholesaler, or procurement manager, you can request a free quotation, ask for product samples, and finalize your bulk purchase with confidence. EximNext hosts thousands of verified manufacturers and exporters across 200+ countries. Explore similar products in the Industrial Couplings category and connect with top-tier exporters on our comprehensive online B2B marketplace. Start your sourcing journey today.
Import 80s Nu Tubing Coupling — Shipping, Logistics & Customs
Importing 80s Nu Tubing Coupling requires careful attention to shipping logistics, customs compliance, and secure payment terms. Common shipping options include Full Container Load (FCL) or Less than Container Load (LCL) via sea freight. Buyers should verify import duties in their destination country. Common payment methods include Letter of Credit (L/C), Telegraphic Transfer (T/T), and Documents against Payment (D/P).
Frequently Asked Questions About 80s Nu Tubing Coupling
What is the wholesale price of 80s Nu Tubing Coupling?
The current listed wholesale price for 80s Nu Tubing Coupling from Tianjin Dalipu Oil Country Tubular Goods Co., Ltd is $20/Bags on FOB terms from China. Prices may vary depending on order volume, packaging, and destination. For the most accurate bulk quote, send a direct RFQ to Tianjin Dalipu Oil Country Tubular Goods Co., Ltd through EximNext.
What is the Minimum Order Quantity (MOQ) for 80s Nu Tubing Coupling?
The supplier, Tianjin Dalipu Oil Country Tubular Goods Co., Ltd, has set a Minimum Order Quantity (MOQ) of 1 Bags for 80s Nu Tubing Coupling. For sample requests or smaller trial orders, contact the supplier directly through our platform's inquiry system.
What is the HS Code for 80s Nu Tubing Coupling?
The HS Code classification for 80s Nu Tubing Coupling depends on the specific grade and form. Contact Tianjin Dalipu Oil Country Tubular Goods Co., Ltd through EximNext for the exact HS Code and customs documentation required for your destination country.
How can I import 80s Nu Tubing Coupling from China?
To import 80s Nu Tubing Coupling from China, negotiate shipping terms (FOB, CIF, or EXW) directly with Tianjin Dalipu Oil Country Tubular Goods Co., Ltd. Ensure you have the necessary import licenses for Industrial Couplings products in your destination country.
Is Tianjin Dalipu Oil Country Tubular Goods Co., Ltd a verified supplier?
Yes, Tianjin Dalipu Oil Country Tubular Goods Co., Ltd is a verified supplier on EximNext. You can view their complete company profile, business registration details, certifications, and export history before placing a bulk order.
What are the key specifications of 80s Nu Tubing Coupling?
For a complete technical data sheet or Certificate of Analysis (COA), send an inquiry directly to Tianjin Dalipu Oil Country Tubular Goods Co., Ltd through EximNext.
What packaging options are available for bulk orders of 80s Nu Tubing Coupling?
Tianjin Dalipu Oil Country Tubular Goods Co., Ltd offers 80s Nu Tubing Coupling with standard export packaging. Custom packaging, private labeling, and OEM/ODM options may also be available for large wholesale orders.
Which countries import 80s Nu Tubing Coupling the most?
80s Nu Tubing Coupling is actively imported by buyers worldwide. Request a destination-specific CIF or CFR quote from Tianjin Dalipu Oil Country Tubular Goods Co., Ltd through our platform.
What certifications does this 80s Nu Tubing Coupling supplier hold?
Tianjin Dalipu Oil Country Tubular Goods Co., Ltd maintains international quality certifications. These ensure that the 80s Nu Tubing Coupling meets international quality, safety, and regulatory standards required for cross-border trade.
How do I place a bulk order for 80s Nu Tubing Coupling on EximNext?
Click "Request Quotation" on this product page, specify your required quantity, preferred shipping terms, and destination country. Tianjin Dalipu Oil Country Tubular Goods Co., Ltd will respond with a detailed wholesale quote including FOB pricing, lead time, and payment options.
What payment methods are accepted?
Common payment methods include Letter of Credit (L/C), Telegraphic Transfer (T/T), Documents against Payment (D/P), and Escrow services. Confirm accepted terms directly with Tianjin Dalipu Oil Country Tubular Goods Co., Ltd.
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