2" J55 L80 N80 P110 Tubing Coupling

Name: API 5CT 2 3/8" to 4 1/2" J55 L80 N80 P110 Tubing Coupling
Brand: Tianjin Dongfanglong Petroleum Equipment Manufacture Co., Ltd.
SKU: 2044517402

Tianjin, ChinaTianjin Dongfanglong Petroleum Equipment Manufacture Co., Ltd.

US$3.65

50 Pieces

Sample price:US$20.00/piece.Request sample

Product profile

Warranty

1year

Certification

API 5CT

Material

Cast Steel

Model NO.

2 3/8" to 4 1/2"

Name

API 5CT 2 3/8 to 4 1/2 J55 N80 P110 Tubing Couplin

Thread

EU Nu

Grade

K55 J55 L80 N80 P110

Usage

Oil Pipe

Transport Package

Wooden Pallet

Specification

2-3/8- 4-1/2

Trademark

EASTLONG

Origin

Puyang China

HS Code

7307990000

Production Capacity

6000 PCS One Dat

Key features

API 5CT Certified Quality: Products meet API 5CT/5B standards with ISO9001 and BV supplier evaluation certificates.

Multiple Grade Options: Available in J55, K55, N80, L80, and P110 grades for diverse oil well requirements.

EUE and NUE Types: Offers External Upset End (EUE) and Non-Upset End (NUE) tubing couplings.

Comprehensive Size Range: Covers sizes from 2-3/8" to 4-1/2" with precise OD and weight specifications.

Rigorous Quality Control: Includes tensile, impact, and chemical tests with PSL-2 or PSL-3 level certification.

1-Year Warranty Coverage: Provides a 1-year warranty for mechanical defects with replacement or credit options.

Fast Production Lead Time: Standard production time is 15-25 days, with peak season lead time within 15 workdays.

Global Export Experience: Established overseas companies in Netherlands with main markets in North America and Europe.

Company profile

Tianjin Dongfanglong Petroleum Equipment Manufacture Co., Ltd.Tianjin, China

Business Type: Manufacturer/FactoryExport Year: 2019-06-07Nearest Port: TIANJIN PORT, QINGDAO PORT, SHANGHAI PORTAverage Response Time: ≤15hTerms of Payment: LC, T/T, PayPal, etc.International Commercial Terms(Incoterms): FOB, EXW, CIF, DDP

AI-Powered supplier vetting

SummaryTianjin Dongfanglong Petroleum Equipment Manufacture Co., Ltd. is a China-based manufacturer founded in 1999, focused on oil pipes, pipe fittings, drilling and production tools, and petroleum automation equipment. The supplier reports ISO 9001 and ISO 14001 certification, 10 production lines, 11–20 years of R&D engineer experience, and 11–20 quality-control staff. It states that its capabilities cover design, development, manufacturing, testing, experimentation, and full-cycle service, supported by more than 30 independent intellectual property rights and an intelligent workshop. The company exports to broad global markets and reports export activity since 2019, but the provided information does not identify specific customer cases or independently verify the stated capabilities.

Supplier typeThe supplier is explicitly identified as a Manufacturer/Factory and a limited company based in Tianjin, China. Its stated business focuses on petroleum equipment, oil pipes, pipe fittings, drilling and production tools, and automation equipment, matching the listed industrial product categories.

CertificationsThe supplier reports holding ISO 14001 and ISO 9001 management-system certifications. These are explicit certification records in the provided data, although certificate scope and validity dates are not given.

R&D capabilityThe supplier reports more than 30 independent intellectual property rights, an intelligent workshop, numerical-control automation equipment capabilities, an e-commerce platform, and recognition as a national science and technology-based small and medium-sized enterprise. These statements provide explicit evidence of innovation-related infrastructure and activity.

Production capacityThe supplier describes an integrated chain covering design, development, manufacturing, testing, and experimentation; operates 10 production lines; and has an intelligent workshop. It also reports oil equipment and pipe-related manufacturing experience, with stated order fulfillment within 15 workdays in both off-peak and peak seasons, supporting a positive production-capability assessment.

Customization capabilityThe stated full-cycle integration of design, development, manufacturing, testing, and experimentation, together with numerical-control automation equipment and an intelligent manufacturing model, indicates the ability to develop and manufacture tailored petroleum equipment. However, no specific customized project examples, engineering-change process, or minimum-order requirements are provided.

Product Q&A

Q:How can I place an order?

You can contact us by email about your order details, or place order on line.

Q:What payment methods do you accept?

After you confirm our PI, we will request you to pay. T/T and Western Union are the most usual ways we are using.

Q:What is the order procedure?

First we discuss order details, production details by email or TM. Then we issue you an PI for your confirmation. You will be requested to do pr -epaid full payment or deposit before we go into production. After we get the deposit, we start to process the order. We usually need 15-25days if we don't have the items in stock. Before production has been finished, we will contact you for shipment details, and the balance payment. After payment has been settled, we start to prepare the shipment for y

Q:How do you handle defective products?

replacement. If there are some defective items, we usually credit to our customer or replace in next shipment.

Q:How do you check goods in the production line?

We have spot inspection and finished product inspection. We check the goods when they go into next step production procedure.